GROUP MAINTENANCE AMERICA CORP
S-4, 1999-04-21
CONSTRUCTION - SPECIAL TRADE CONTRACTORS
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<PAGE>
 
    As filed with the Securities and Exchange Commission on April 21, 1999
                                                     Registration No. 333-
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
 
                                ---------------
 
                                   FORM S-4
 
                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933
 
                                ---------------
 
                        Group Maintenance America Corp.
            (Exact Name of registrant as specified in its charter)
 
       Texas                         1711                     76-0535259
  (State or other        (Primary Standard Industrial      (I.R.S. Employer
  jurisdiction of         Classification Code Number)   Identification Number)
 incorporation or
   organization)
 
<TABLE> 
<S>                                                  <C> 
                                                               Randolph W. Bryant
        8 Greenway Plaza, Suite 1500                 Senior Vice President, General Counsel and
             Houston, Texas 77046                                   Secretary
               (713) 860-0100                              8 Greenway Plaza, Suite 1500
  (Address, including zip code, and telephone                 Houston, Texas 77046
  number, including area code, of  Registrant's                    (713) 860-0100
        principal executive offices)                 (Address, including zip code, and telephone
                                                     number, including area code, of Registrant's
                                                             agent for service of process)
 </TABLE> 
                                ---------------
 
                                   Copy to:
 
                                Gary W. Orloff
                         Bracewell & Patterson, L.L.P.
                    South Tower Pennzoil Place, Suite 2900
                             711 Louisiana Street
                           Houston, Texas 77002-2781
                             Phone: (713) 221-1306
                              Fax: (713) 221-1212
 
                                ---------------
 
  Approximate date of commencement of proposed sale of the securities to the
public: As soon as practicable after this Registration Statement becomes
effective.
 
  If the securities being registered on this Form are to be offered in
connection with the formation of a holding company or there is compliance with
General Instruction G, check the following box. [_]
 
                        CALCULATION OF REGISTRATION FEE
 
<TABLE>
- -----------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------
<CAPTION>
Title of Each Class of                Proposed Maximum Proposed Maximum
      Securities         Amount to be  Offering Price      Aggregate        Amount of
   to be Registered       Registered    Per Unit(1)    Offering Price(1) Registration Fee
- -----------------------------------------------------------------------------------------
<S>                      <C>          <C>              <C>               <C>
9 3/4% Senior
 Subordinated Notes due
 2009..................  $130,000,000       100%         $130,000,000        $36,140
- -----------------------------------------------------------------------------------------
Guarantees of 9 3/4%
 Senior Subordinated
 Notes due 2009(2).....       --             --               --                --
- -----------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------
</TABLE>
(1) Estimated solely for the purpose of calculating the registration fee
    pursuant to Rule 457(o).
(2) No additional consideration will be paid by the recipients of the 9 3/4%
    Senior Subordinated Notes due 2009 for the Guarantees. Pursuant to Rule
    457(n) under the Securities Act, no separate fee is payable for the
    Guarantees.
 
                                ---------------
 
  The Registrant hereby amends this Registration Statement on such date or
dates as may be necessary to delay its effective date until the Registrant
shall file a further amendment which specifically states that this
Registration Statement shall thereafter become effective in accordance with
Section 8(a) of the Securities Act of 1933 or until the Registration Statement
shall become effective on such date as the Commission, acting pursuant to said
Section 8(a), may determine.
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+The information in this Prospectus is not complete and may be changed. We may +
+not sell these securities until the registration statement filed with the     +
+Securities and Exchange Commission relating to these securities is effective. +
+This Prospectus is not an offer to sell these securities and it is not        +
+soliciting an offer to buy these securities in any state where the offer or   +
+sale is not permitted.                                                        +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                  Subject to Completion, dated April 21, 1999
 
                                  $130,000,000
                          [GroupMac Logo Appears Here]
                        Group Maintenance America Corp.
                               Offer to Exchange
           9 3/4% Exchange Senior Subordinated Notes due 2009 for any
         and all outstanding 9 3/4% Senior Subordinated Notes due 2009
 
                                   ---------
 
  This Prospectus (and accompanying Letter of Transmittal) relates to our
proposed offer to exchange up to $130,000,000 aggregate principal amount of new
9 3/4% Senior Subordinated Notes due 2009 (the "Exchange Notes"), which will be
freely transferable, for any and all outstanding 9 3/4% Senior Subordinated
Notes due 2009 issued in a private offering on January 22, 1999 (the "Original
Notes"), which have certain transfer restrictions.
 
  . The Exchange Offer expires 5:00 p.m., New York City time, on [   ], 1999,
    unless extended.
 
  . The terms of the Exchange Notes are substantially identical to the terms
    of the Original Notes, except that the Exchange Notes will be freely
    transferable and issued free of any covenants regarding exchange and
    registration rights.
 
  . All Original Notes that are validly tendered and not validly withdrawn
    will be exchanged.
 
  . Tenders of Original Notes may be withdrawn at any time prior to expiration
    of the Exchange Offer.
 
  . We will not receive any proceeds from the Exchange Offer.
 
  . The exchange of Original Notes for Exchange Notes should not be a taxable
    event for United States Federal income tax purposes.
 
  . Holders of Original Notes do not have any appraisal or dissenters' rights
    in connection with the Exchange Offer.
 
  . Original Notes not exchanged in the Exchange Offer will remain outstanding
    and be entitled to the benefits of the Indenture, but except under certain
    circumstances will have no further exchange or registration rights under
    the Registration Rights Agreement.
 
  . Our "affiliates" (within the meaning of the Securities Act) may not
    participate in the Exchange Offer.
 
  . All broker-dealers must comply with the registration and prospectus
    delivery requirements of the Securities Act.
 
  . We do not intend to apply for listing of the Exchange Notes on any
    securities exchange or to arrange for them to be quoted on any quotation
    system.
 
  The Exchange Notes and the Original Notes are referred to collectively as the
"Notes."
 
                                  ----------
 
  Please see "Risk Factors" beginning on page 16 for a discussion of certain
factors you should consider in connection with the Exchange Offer.
 
                                  ----------
 
  Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of the Exchange Notes or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.
 
  We may amend or supplement this prospectus from time to time by filing
amendments or supplements as required. You should read this entire prospectus,
the accompanying Letter of Transmittal and related documents and any amendments
or supplements to this prospectus carefully before making your investment
decision.
 
                                  ----------
 
                 The date of this Prospectus is         , 1999.
<PAGE>
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                         <C>
Summary....................................................................   3
Risk Factors...............................................................  16
The Exchange Offer.........................................................  23
Use of Proceeds............................................................  37
Capitalization.............................................................  38
Description of Credit Agreement............................................  39
Description of the Notes...................................................  42
Certain Federal Income Tax Considerations..................................  84
Legal Matters..............................................................  89
Experts....................................................................  90
Where You Can Find More Information........................................  91
</TABLE>
 
                               ----------------
 
  You should rely on the information contained in this prospectus or to which
we have referred you. We have not authorized anyone to provide you with
different information. This prospectus may only be used where it is legal to
sell the Notes. The information in this document may only be accurate on the
date set forth on the cover.
 
                               ----------------
                           FORWARD-LOOKING STATEMENTS
  This prospectus includes forward-looking statements. We have based these
forward-looking statements on our current expectations and projections about
future events. These forward-looking statements are subject to risks,
uncertainties, and assumptions about us, including, among other things:
 
  . Our reliance on acquisitions for growth,
 
  . Our plan to use our stock as consideration in future acquisitions, and
    the effect of a decline in the stock price on that plan,
 
  . Our ability to integrate acquired businesses,
 
  . Our reliance on the commercial and residential new construction
    industries,
 
  . Anticipated trends and conditions in our industry, including future
    consolidation,
 
  . The effect of moderate weather patterns on the demand for our services,
    and
 
  . Our ability to compete in local markets.
 
  We undertake no obligation to update or revise any forward-looking
statements, whether as a result of new information, future events or otherwise.
In light of these risks, uncertainties and assumptions, the forward-looking
events discussed in this prospectus might not occur.
 
                                       2
<PAGE>
 
                                    SUMMARY
 
  This summary highlights selected information from this prospectus or
information incorporated by reference in this prospectus and may not contain
all the information that is important to you. This prospectus includes specific
terms of the notes we are offering, as well as information regarding our
business and detailed financial data. You should read carefully this entire
prospectus, including any information to which we refer you, before deciding to
exchange any of the notes. The terms "GroupMAC," "us", "our" and "we" as used
in this prospectus refer to Group Maintenance America Corp. and its
subsidiaries on a combined basis, as well as to the business and operations of
their predecessors, except where it is made clear that such term means only the
parent company. References to fiscal year financial information for GroupMAC
refers to the fiscal year ended December 31, 1998 or the respective fiscal year
ends of our subsidiaries. References to pro forma financial information of
GroupMAC, or to combined financial information of any group of its operating
units, refer to a year ended December 31. GroupMAC changed its fiscal year end
to December 31 after completing the initial public offering of its common stock
(the "IPO") on November 13, 1997.
 
 
                        Group Maintenance America Corp.
 
  GroupMAC is a leading nationwide provider of mechanical and electrical
services. Mechanical services include heating, ventilating and air conditioning
("HVAC") and plumbing services. We provide services to commercial/industrial
and residential customers through our operations in 58 cities across 26 states.
We offer a broader range of comprehensive services to our customers than
virtually any other company in our industry. The following tables show our pro
forma revenue mix for the latest twelve months ended December 31, 1998.
 
<TABLE>
<CAPTION>
                                Industries Served
                                -----------------
                                                          Revenue
                                                      ($ in millions) Percentage
                                                      --------------- ----------
<S>                                                   <C>             <C>
Mechanical...........................................    $1,023.7        81.2%
Electrical...........................................    $  236.3        18.8%
</TABLE>
 
<TABLE>
<CAPTION>
                                Customer Markets
                                ----------------
                                                          Revenue
                                                      ($ in millions) Percentage
                                                      --------------- ----------
<S>                                                   <C>             <C>
Commercial/industrial................................     $959.1         76.1%
Residential..........................................     $300.9         23.9%
</TABLE>
 
<TABLE>
<CAPTION>
                                Services Provided
                                -----------------
                                                          Revenue
                                                      ($ in millions) Percentage
                                                      --------------- ----------
<S>                                                   <C>             <C>
Maintenance, Repair & Replacement....................     $748.2         59.4%
New Installation.....................................     $511.8         40.6%
</TABLE>
 
  We have achieved our goal of obtaining approximately 60% of our revenue from
maintenance, repair and replacement services and approximately 40% from new
installation services one year ahead of schedule. The benefits of maintenance,
repair and replacement services include higher margins, more predictable and
recurring revenues and a more diversified customer base. The benefits of new
installation services include pricing discounts received through volume
purchases and potential recurring customers for maintenance, repair and
replacement services. Nationwide, maintenance, repair and replacement
represented 66% of industry sales for 1997, with new installations accounting
for 34% of the total.
 
  We provide our commercial/industrial customers with maintenance, repair and
replacement and new installation services for products such as:
 
 . Boilers, chillers and central plants,
 
 . Process piping and control systems, and
 
 . Data cabling.
 
                                       3
<PAGE>
 
 
  We provide our residential customers with maintenance, repair and replacement
and new installation services for products such as:
 
 . Central air conditioning systems and furnaces,
 
 . Plumbing fixtures and pipes, and
 
 . Water heaters.
 
  Since our formation in 1996, we have acquired 68 companies in 44 of the top
100 markets in the United States. To date we have grown primarily through a
disciplined acquisition process. In addition to acquisition growth, we have
experienced 15.1% internal revenue growth for the fiscal year ended December
31, 1998 compared to the fiscal year ended December 31, 1997 in the 24
operating companies acquired before or concurrently with the initial public
offering of our common stock. These companies have been in business an average
of 27 years. Our pro forma revenues were approximately $1,260.0 million for the
fiscal year ended December 31, 1998.
 
                                  The Industry
 
  Overall. The mechanical and electrical services markets are substantial and
highly fragmented with a small number of multi-location regional or national
operators and a large number of relatively small, independent businesses
serving discrete local markets with limited service offerings. Based on
available industry data, we estimate there are over 100,000 businesses with
combined annual revenues of over $100 billion consisting of approximately $84
billion in mechanical and $16 billion in electrical service revenues. We
believe the combined revenues of the regional and national service providers,
including our company, account for approximately 5% of the total mechanical and
electrical service markets. We believe the fragmented nature of each industry
presents substantial consolidation and growth opportunities for companies with
access to capital and management skills to implement a disciplined acquisition
program and effectively integrate and operate a national network of mechanical
and electrical service businesses.
 
  Commercial/Industrial Market. We provide maintenance, repair and replacement
services and new installation in the following major vertical markets:
 
 . Manufacturing and processing facilities;
 
 . Power generation facilities;
 
 . Hospitals and other critical care facilities;
 
 . Colleges and universities;
 
 . Hotels;
 
 . Commercial office buildings and complexes;
 
 . Retail stores; and
 
 . Restaurants, supermarkets, and convenience stores.
 
  Our commercial and industrial customers include general contractors, facility
owners, facility managers, developers, utilities, energy service companies,
property managers, engineers, consultants and architects. We believe that the
demand for commercial/industrial
 
                                       4
<PAGE>
 
services will primarily be derived from any one or a combination of the
following:
 
 . Bundling of energy with other energy-related services/upgrades;
 
 . Continued outsourcing trend;
 
 . Single-sourcing of services by national customers;
 
 . General economic conditions;
 
 . Aging installed HVAC equipment base;
 
 . Increased efficiency and sophistication of HVAC equipment; and
 
 . Strong growth in voice and data communications.
 
  It is becoming increasingly more important to be able to "bundle" mechanical
and electrical capabilities for national commercial/industrial companies as
more customers look for outsourcing options. Furthermore, as utilities and
other energy companies look for ways to secure their current market share,
extensive opportunities will exist to provide critical efficiency upgrades and
operations and maintenance programs on a national basis.
 
  We estimate that approximately 50.6% of our pro forma revenue for the fiscal
year ended December 31, 1998 is associated with commercial/industrial
maintenance, repair and replacement services and 25.5% is derived from new
installation services.
 
  Residential Market. We provide maintenance, repair and replacement and new
installation services in single family and low-rise multifamily housing units.
Our residential customers include local, regional, and national homebuilders,
apartment developers and individual property owners. The residential new
installation market is primarily dependent on the number of single family and
multi-family housing starts. The residential service market is dependent in the
short term on weather patterns and over the long term is expected to grow due
to the increasing size of the installed base. We estimate that approximately
8.8% of pro forma revenue for the fiscal year ended December 31, 1998 is
associated with residential maintenance, repair and replacement services with
15.1% derived from new installation services.
 
                               Company Strengths
 
  We believe that we have six basic strengths as a company.
 
  Balanced Business Mix. We believe that our balanced customer base, broad
geographic presence and comprehensive service offerings provide us with
earnings and cash flow stability and growth potential. Our balanced business
mix should mitigate the effects of national and regional economic cycles and
weather patterns.
 
  Significant National Presence. We have become a leading national provider of
mechanical and electrical services through our acquisition of 68 operating
companies in 58 cities across 26 states. Our national presence is evident
through our operations in 44 of the top 100 markets. We have been utilizing our
United Service Alliance ("USA") affiliates as well as our operating companies
to expand our national presence. USA is a member organization owned by GroupMAC
which provides industry training programs and national account opportunities to
independent service companies. In geographic areas where we have limited or no
operations, we coordinate with a USA affiliate to provide
 
                                       5
<PAGE>
 
service to our customers. This affiliate network together with our operating
companies facilitates the cross marketing of services and the development of
regional and national customers. Our larger and/or national customers include
Microsoft, Lincoln Properties, Builders Square, Pep Boys, Blockbuster and MCI
Worldcom.
 
  Meaningful Utility Alliances. We believe that we will benefit from utility
deregulation through our national presence and the breadth of products and
services we can offer to energy companies seeking to bundle their service and
product offerings to commercial, industrial and residential owners and
builders. We were recently selected by PG&E Energy Services as their preferred
provider of commercial HVAC services nationwide. An unregulated subsidiary of
the third largest utility in the United States, PG&E Energy Services has a
national presence and is likely to be a significant participant in the rapidly
growing energy services market.
 
  Proven Ability to Integrate Acquisitions. We have a dedicated eight member
acquisition team that selectively targets well-managed, profitable service
providers with established market positions in specific geographic, product or
service markets. Moreover, each company we acquire has a solid financial and
administrative infrastructure in place prior to acquisition. We have a
formalized, analytical screening process to source and evaluate acquisition
candidates. We are currently evaluating financial statements of potential
acquisition targets with over $1,100.0 million in annualized revenues from
which we intend to select acquisition targets.
 
  Experienced Management Team. Our senior management team includes four
recognized leaders in the HVAC industry and all others have industry,
consolidation and/or public company experience. We believe that our management
team is capable of achieving our growth strategy. In addition, local management
has substantial experience in the mechanical and electrical service industries.
Our directors and executive officers and the management of our operating
companies own approximately 70% of our common stock on a fully diluted basis.
 
  Superior Customer Service. We provide superior, consistent customer service
on a nationwide basis. Historically, mechanical and electrical service
companies have provided inconsistent quality or a limited scope of services to
their customers. In recent years, technological developments and changing
service needs have heightened the problem of unpredictable service quality in
our markets. Our superior service is the result of thorough hiring and training
methods and close supervision. To differentiate GroupMAC's commercial service
delivery, we have developed a standardized approach to preventative maintenance
services, the Performance Service System. This system allows us to
 
                                       6
<PAGE>
 
design customized maintenance programs for customers based upon their targeted
maintenance expenditure levels. Furthermore, this system allows us to manage
services and control quality for customers in a consistent manner which
augments our national accounts effort. Finally, the use of equity incentives
for substantially all employees encourages a service-oriented workforce.
 
                                Company Strategy
 
  Our objective is to become the premier provider of mechanical and electrical
services by supplying high quality, nationwide service. To achieve our
objective, we have adopted a strategy based on the following elements.
 
  Continue to Develop National Accounts. We believe that our national scope and
superior service quality will allow us to compete successfully for larger
service contracts. National contracts typically require greater geographic
coverage and personnel availability to allocate and share resources more
effectively. In pursuing long-term national contracts we focus on contracts
with:
 
 . multi-location commercial and industrial customers,
 
 . building management companies,
 
 . electric utilities, and
 
 . real estate investment trusts and other large property owners.
 
  We believe that several trends among our customer base have heightened the
need for national service capabilities, including:
 
 . trends toward the institutional ownership and management of all types of real
   estate,
 
 . increased outsourcing of services, and
 
 . offering our services as a value added element to enhance the sale of
   electricity and natural gas to commercial/industrial customers by utilities.
 
  Establish Strategic Alliances with Utility Companies. As electric utility
markets deregulate, we expect certain national energy providers to "bundle" the
services we offer with their more traditional commodity products and services.
These providers will likely include services for the installation, retrofit
and/or maintenance of the energy-consuming systems of commercial and industrial
businesses. We believe that national utility providers will seek to align
themselves with us for our ability to provide high quality service nationwide.
We continue to evaluate all acquisitions based upon their ability to allow us
to pursue the opportunities inherent in utility deregulation.
 
  Pursue Selective Acquisitions. The fragmented nature of our markets provides
substantial opportunities for us to continue our acquisition strategy. We use
detailed criteria in screening for potential acquisitions. After an initial
screening, each candidate is evaluated through a rigorous due diligence process
including detailed financial, operational and other reviews. We will continue
to seek to retain senior management of acquired companies and to align their
interests with ours by using common stock as consideration for acquisitions and
compensation.
 
                                       7
<PAGE>
 
 
  Attract, Develop and Retain Skilled Technicians. Our growth and success
depends on our ability to attract and retain a highly trained and motivated
technical workforce. Our objective is to become the employer of choice within
our markets by offering our employees opportunities that most smaller operators
cannot, including:
 
 . superior training,
 
 . formalized career development and advancement throughout a large
   organization,
 
 . substantial employee benefits,
 
 . equity-based incentive compensation and participation, and
 
 . greater stability of employment.
 
  We intend to monitor continuously our employee relations and policies to
attract and retain key technical employees.
 
  Continue to Achieve Operating Efficiencies. As a national operator, we
benefit from increased efficiency in several areas, including:
 
 . materials purchasing,
 
 . computer systems,
 
 . employee benefits,
 
 . insurance,
 
 . financing, and
 
 . marketing programs.
 
  We are also able to share "best practices" in all of our companies by
facilitating and promoting communication throughout our company and our
affiliates.
 
  Maintain Decentralized Field Operations. Each market we serve has different
operating characteristics and requires knowledgeable local or regional
management. As part of our acquisition and operating strategy, we retain local
brand names and management and allow them to maintain substantial
responsibility for the day-to-day operations while providing significant
support from both the corporate level and the overall organization to best
manage long-term operating success. We provide incentives to local managers and
former owners through both equity participation and cash-based performance
programs. Our decentralized operations allow local management to focus on
maintaining the highest level of customer service and provide useful
information on regional trends and activities.
 
                              Recent Developments
 
  Since December 31, 1998, we completed the following acquisitions:
 
 .  On January 14, 1999, we acquired Pacific Rim Mechanical Contractors, Inc.,
   which provides mechanical contracting services primarily to commercial
   customers located in San Diego, California. In fiscal 1998, Pacific Rim had
   revenues of approximately $38.7 million and its income from operations was
   approximately $0.9 million.
 
 .  On February 11, 1999, we acquired Air Systems, Inc., which provides
   mechanical contracting services primarily to commercial customers located in
   San Jose, California, and surrounding areas. In fiscal 1998, Air Systems had
   revenues of approximately $120.9 million and its income from operations was
   approximately $11.2 million.
 
                                       8
<PAGE>
 
 
 .  On February 12, 1999, we acquired Statewide Heating & Air Conditioning,
   Inc., which provides mechanical contracting services primarily to commercial
   customers located in the Raleigh, North Carolina, metropolitan area. In
   fiscal 1998, Statewide had revenues of approximately $5.6 million and its
   income from operations was approximately $0.5 million.
 
 .  On April 8, 1999, we acquired Klassic Air Conditioning, Inc., which installs
   HVAC systems in newly constructed residences in the Houston, Texas,
   metropolitan area. In fiscal 1998, Klassic had revenues of approximately
   $10.0 million and its income from operations was approximately $0.3 million.
 
 .  On April 14, 1999, we acquired Tower Electric Company, which provides
   electrical contracting services to commercial customers located in the
   Fairfax, Virginia, metropolitan area. In fiscal 1998, Tower Electric had
   revenues of approximately $8.4 million and its income from operations was
   approximately $1.5 million.
 
The aggregate consideration paid or to be paid for these acquisitions consisted
of approximately $40.6 million in cash, $1.6 million of junior subordinated
notes, 2.4 million shares of our common stock, warrants to purchase 0.1 million
shares of common stock and assumed debt of $13.8 million. We will account for
these acquisitions using the purchase method of accounting.
 
  On January 14, 1999, we announced that the holders of over 7.2 million shares
of our common stock had agreed to extend their lock-up terms through December
31, 1999. These shareholders included our executive officers, our board
members, our initial equity sponsor and some larger shareholders who received
common stock when we acquired their businesses.
 
  On January 22, 1999, we completed a private placement to institutional
investors of $130 million aggregate principal amount of 9 3/4% senior
subordinated notes due 2009. We used the proceeds of that offering to repay
indebtedness that we incurred under our $230 million bank credit agreement (the
"Credit Agreement") to make acquisitions of businesses.
 
  We currently plan to continue our past business practice of acquiring other
businesses in our industry. We are currently evaluating financial statements of
potential acquisition targets with over $1.1 billion in annualized revenues
from which we intend to select acquisition targets.
 
                                       9
<PAGE>
 
                               The Exchange Offer
 
Registration Rights           We sold $130 million in aggregate principal
 Agreement..................  amount of Original Notes to qualified
                              institutional buyers as defined in Rule 144A
                              under the Securities Act or to institutional
                              accredited investors within the meaning of Rule
                              501 under the Securities Act, through Merrill
                              Lynch & Co., NationsBanc Montgomery Securities
                              LLC, ABN AMRO Incorporated, The Robinson-Humphrey
                              Company, Jefferies & Company, Inc. and U.S.
                              Bancorp Libra, as initial purchasers (the
                              "Initial Purchasers"). The Initial Purchasers and
                              we entered into an Exchange and Registration
                              Rights Agreement dated as of January 22, 1999
                              (the "Registration Rights Agreement"), which
                              grants the holders of the Original Notes certain
                              exchange and registration rights. The Exchange
                              Offer made hereby is intended to satisfy such
                              exchange rights.
 
The Exchange Offer..........  $1,000 principal amount of Exchange Notes in
                              exchange for each $1,000 principal amount of
                              Original Notes. As of the date hereof, $130
                              million aggregate principal amount of the
                              Original Notes are outstanding. We will issue the
                              Exchange Notes to holders on the earliest
                              practicable date following the Expiration Date.
 
Resales of the Exchange       Based on an interpretation by the staff of the
 Notes......................  SEC set forth in no-action letters issued to
                              third parties, we believe that, except as
                              described below, the Exchange Notes issued
                              pursuant to the Exchange Offer may be offered for
                              resale, resold and otherwise transferred by a
                              holder thereof (other than any such holder that
                              is an "affiliate" of GroupMAC within the meaning
                              of Rule 405 under the Securities Act) without
                              compliance with the registration and prospectus
                              delivery provisions of the Securities Act,
                              provided that such Exchange Notes are acquired in
                              the ordinary course of such holder's business and
                              that such holder has no arrangement or
                              understanding with any person to participate in
                              the distribution of such Exchange Notes.
 
                              Each broker-dealer that receives Exchange Notes
                              pursuant to the Exchange Offer in exchange for
                              Original Notes that such broker-dealer acquired
                              for its own
 
                                       10
<PAGE>
 
                              account as a result of market-making activities
                              or other trading activities (other than Original
                              Notes acquired directly from us or our
                              affiliates) must acknowledge that it will deliver
                              a prospectus in connection with any resale of
                              such Exchange Notes. The Letter of Transmittal
                              states that by so acknowledging and by delivering
                              a prospectus, a broker-dealer will not be deemed
                              to admit that it is an "underwriter" within the
                              meaning of the Securities Act.
 
                              If we receive certain notices in the Letter of
                              Transmittal, this Prospectus, as it may be
                              amended or supplemented from time to time, may be
                              used for the period described below by a broker-
                              dealer in connection with resales of Exchange
                              Notes received in exchange for Original Notes
                              where such Original Notes were acquired by such
                              broker-dealer as a result of market-making
                              activities or other trading activities and not
                              acquired directly from us. We have agreed that,
                              if we receive certain notices in the Letter of
                              Transmittal, for a period of 180 days after the
                              date on which the Registration Statement becomes
                              effective, we will make this Prospectus available
                              to any such broker-dealer for use in connection
                              with any such resale.
 
                              The Letter of Transmittal requires broker-dealers
                              tendering Original Notes in the Exchange Offer to
                              indicate whether such broker-dealer acquired such
                              Original Notes for its own account as a result of
                              market-making activities or other trading
                              activities (other than Original Notes acquired
                              directly from us or any of our affiliates). If no
                              broker-dealer indicates that such Original Notes
                              were so acquired, we have no obligation under the
                              Registration Rights Agreement to maintain the
                              effectiveness of the Registration Statement past
                              the consummation of the Exchange Offer or to
                              allow the use of this Prospectus for such
                              resales. See "The Exchange Offer--Purpose and
                              Effect of the Exchange Offer"; "--Registration
                              Rights" and "--Resale of the Exchange Notes; Plan
                              of Distribution."
 
Expiration Date.............  The Exchange Offer expires at 5:00 p.m., New York
                              City time, on       , 1999, unless we extend the
                              Exchange Offer in our sole discretion, in which
                              case
 
                                       11
<PAGE>
 
                              the term "Expiration Date" means the latest date
                              and time to which such Exchange Offer is
                              extended.
 
Conditions to the Exchange
 Offer......................  The Exchange Offer is subject to certain
                              conditions, which we may waive. See "The Exchange
                              Offer--Conditions to the Exchange Offer."
 
Procedures for Tendering
 the Original Notes.........  Each holder of Original Notes wishing to accept
                              the Exchange Offer must complete, sign and date
                              the accompanying Letter of Transmittal in
                              accordance with the instructions contained herein
                              and therein, and mail or otherwise deliver such
                              Letter of Transmittal together with the Original
                              Notes and any other required documentation to the
                              Exchange Agent (as defined below under "Exchange
                              Agent") at the address set forth herein. By
                              executing the Letter of Transmittal, a holder
                              will make certain representations to us. See "The
                              Exchange Offer--Registration Rights" and "--
                              Procedures for Tendering Original Notes."
 
Special Procedures for
 Beneficial Owners..........  Any beneficial owner whose Original Notes are
                              registered in the name of a broker, dealer,
                              commercial bank, trust company or other nominee
                              and who wishes to tender should contact such
                              registered holder promptly and instruct such
                              registered holder to tender on such beneficial
                              owner's behalf. See "The Exchange Offer--
                              Procedures for Tendering Original Notes."

Guaranteed Delivery         
 Procedures.................  Holders of Original Notes who wish to tender
                              their Original Notes when those securities are
                              not immediately available or who cannot deliver
                              their Original Notes, the Letter of Transmittal
                              or any other documents required by such Letter of
                              Transmittal to the Exchange Agent prior to the
                              Expiration Date, must tender their Original Notes
                              according to the guaranteed delivery procedures
                              set forth in "The Exchange Offer--Procedures for
                              Tendering Original Notes--Guaranteed Delivery."
 
Withdrawal Rights...........  Tenders of Original Notes pursuant to the
                              Exchange Offer may be withdrawn at any time prior
                              to the Expiration Date.
 
                                       12
<PAGE>
 
 
Acceptance of Original
 Notes and Delivery of
 Exchange Notes.............  We will accept for exchange any and all Original
                              Notes that are properly tendered in the Exchange
                              Offer, and not withdrawn, prior to the Expiration
                              Date. The Exchange Notes issued pursuant to the
                              Exchange Offer will be issued on the earliest
                              practicable date following our acceptance for
                              exchange of Original Notes. See "The Exchange
                              Offer--Terms of the Exchange Offer."
 
Exchange Agent..............  State Street Bank & Trust Company is serving as
                              exchange agent (the "Exchange Agent") in
                              connection with the Exchange Offer.
 
Federal Income Tax
 Considerations.............  We have received an opinion of counsel advising
                              that the exchange of Original Notes for Exchange
                              Notes pursuant to the Exchange Offer will not be
                              treated as a taxable exchange for federal income
                              tax purposes. See "Certain Federal Income Tax
                              Considerations."
 
                                   The Notes
 
Maturity Date...............  January 15, 2009.
 
Interest Payment Dates......  January 15 and July 15 of each year, commencing
                              July 15, 1999.
 
Optional Redemption.........  We may redeem the Notes at our option, in whole
                              or in part, at any time on or after January 15,
                              2004 at the redemption prices set forth herein
                              plus accrued interest on the date of redemption.
                              Additionally, we may redeem up to an aggregate of
                              35% of the principal amount of the Notes from
                              time to time prior to January 15, 2002 at our
                              option at the redemption price set forth herein
                              plus accrued interest to the date of redemption,
                              with the net proceeds of certain sales of our
                              common stock if at least 65% of the principal
                              amount of the Notes remains outstanding. See
                              "Description of the Notes--Optional Redemption."
 
Change of Control...........  Upon certain change of control events, we must
                              offer to repurchase all outstanding Notes at 101%
                              of the principal amount thereof plus accrued
                              interest. See "Description of the Notes--Change
                              of Control."
 
                                       13
<PAGE>
 
 
Subsidiary Guarantees.......  The Notes are guaranteed (the "Guarantees"),
                              jointly and severally on a senior subordinated
                              basis, by each of our existing and future direct
                              and indirect Subsidiaries (excluding Unrestricted
                              Subsidiaries and Foreign Subsidiaries). As of the
                              date hereof, all of our subsidiaries guarantee
                              the Notes. See "Description of the Notes--
                              Guarantees of the Notes."
 
Ranking.....................  The Notes and the subsidiary guarantees will be
                              unsecured senior subordinated obligations. The
                              Notes rank behind all our existing and future
                              senior indebtedness including borrowings under
                              our Credit Agreement. The guarantees will rank
                              behind all existing and future guarantor senior
                              indebtedness. They will rank equally in right of
                              payment with any of our future senior
                              subordinated indebtedness and of the subsidiary
                              guarantors, and senior in right of payment of any
                              of their junior subordinated indebtedness. The
                              term "senior indebtedness" is defined in the
                              "Description of the Notes--Certain Definitions"
                              section of this prospectus.
 
                              At December 31, 1998, assuming we had completed
                              all acquisitions we have acquired subsequent to
                              such date and issued the Notes and applied the
                              net proceeds therefrom, the Notes and the
                              subsidiary guarantees:
 
                              . would have been subordinated to $159.5 million
                                of senior indebtedness, and
 
                              . would have ranked senior to $1.6 million of
                                junior subordinated debt.
 
                              We and our subsidiaries may incur additional
                              debt, subject to certain limitations. See
                              "Description of the Notes--Subordination" and "--
                              Certain Covenants--Limitation on Indebtedness."
 
Restrictive Covenants.......  The indenture under which the Original Notes were
                              issued and the Exchange Notes will be issued (the
                              "Indenture") contains certain covenants that,
                              among other things, limit our ability and the
                              ability of our restricted subsidiaries (as
                              defined) to:
 
                              . incur additional indebtedness,
 
                                       14
<PAGE>
 
 
                              . incur additional senior subordinated
                                indebtedness,
 
                              . pay dividends on, redeem or repurchase our
                                capital stock,
 
                              . make investments,
 
                              . issue or sell capital stock of restricted
                                subsidiaries,
 
                              . engage in transactions with affiliates,
 
                              . create certain liens,
 
                              . sell assets,
 
                              . guarantee indebtedness,
 
                              . restrict dividend or other payments to us, and
 
                              . consolidate, merge or transfer all or
                                substantially all our assets and the assets of
                                our subsidiaries on a consolidated basis.
 
                              The covenants are subject to important exceptions
                              and qualifications which are described under the
                              heading "Description of the Notes" in this
                              prospectus.
 
                                  Risk Factors
 
  Prospective purchasers of the Notes should consider carefully the information
set forth under the caption "Risk Factors" and all other information set forth
in this Prospectus before making any investment in the Notes.
 
                                ----------------
 
  Our principal executive offices are located at 8 Greenway Plaza, Suite 1500,
Houston, Texas 77046 and our telephone number is (713) 860-0100.
 
                                       15
<PAGE>
 
                                  RISK FACTORS
 
  You should carefully consider the following factors and other information in
this offering memorandum before deciding to invest in the Notes.
 
Significant Indebtedness and Interest Payment Obligations--Our substantial
indebtedness could adversely affect our financial health, make us more
vulnerable to adverse economic conditions and prevent us from fulfilling our
obligations under the Notes.
 
  We are highly leveraged. As of December 31, 1998, assuming we had completed
all acquisitions we have acquired subsequent to such date and issued the Notes
and applied the net proceeds therefrom, we had outstanding $291.1 million of
consolidated indebtedness (of which approximately $159.5 million would have
been senior indebtedness) and our total consolidated indebtedness, as a
percentage of capitalization, was 45.7%. We will require substantial capital to
finance our anticipated growth, so we expect to incur additional debt in the
future. However, we will be limited in the amount we could incur by our
existing and future debt agreements.
 
  Our high level of indebtedness could have important consequences to holders
of Notes, such as:
 
 . limiting our ability to obtain additional financing to fund our growth
  strategy, working capital, capital expenditures, debt service requirements or
  other purposes;
 
 . limiting our ability to use operating cash flow in other areas of our
  business because we must dedicate a substantial portion of these funds to
  make principal payments and fund debt service;
 
 . placing us at a competitive disadvantage compared to competitors with less
  debt;
 
 . increasing our vulnerability to adverse economic and industry conditions; and
 
 . increasing our vulnerability to interest rate increases because borrowings
  under our Credit Agreement are at variable interest rates.
 
  Our ability to pay interest on the Notes and to satisfy our other debt
obligations will depend upon, among other things, our future operating
performance and our ability to refinance indebtedness when necessary. Each of
these factors is to a large extent dependent on economic, financial,
competitive and other factors beyond our control. If, in the future, we cannot
generate sufficient cash from operations to make scheduled payments on the
notes or to meet our other obligations, we will need to refinance, obtain
additional financing or sell assets. We cannot assure you that our business
will generate cash flow, or that we will be able to obtain funding, sufficient
to satisfy our debt service requirements.
 
Subordination of the Notes and Guarantees to Senior Indebtedness--Your right to
receive payment on the Notes is junior to most of our existing indebtedness and
possibly all of our future borrowings. Further, the guarantees of the Notes are
junior to all of our guarantors' existing indebtedness and possibly all of
their future borrowings.
 
  The Notes will be subordinate to all our senior indebtedness. The guarantees
will be subordinated to all guarantor senior indebtedness. As of December 31,
1998, assuming we had completed all acqusitions we have acquired subsequent to
such date
 
                                       16
<PAGE>
 
and issued the Notes and applied the net proceeds therefrom, we had outstanding
$159.5 million of senior indebtedness ($158.9 million of which was guarantor
senior indebtedness). We also may incur additional senior indebtedness under
the terms of the Credit Agreement. For example, as of December 31, 1998,
assuming we had completed all acqusitions we have acquired subsequent to such
date and issued the Notes and applied the net proceeds therefrom, and subject
to the terms and conditions of the Credit Agreement, we had $70.6 million
available thereunder which, if borrowed, would be senior indebtedness. In the
event of our bankruptcy, liquidation or dissolution, our assets would be
available to pay obligations on the Notes only after all payments have been
made on our senior indebtedness. Similarly, in the event of a bankruptcy,
liquidation or dissolution of any guarantor, its assets would be available to
pay obligations on the guarantee only after all payments had been made on its
guarantor senior indebtedness. In addition, no cash payments may be made with
respect to the Notes during the continuance of a payment default with respect
to senior indebtedness. Furthermore, under certain circumstances, no cash
payments with respect to the Notes may be made for a period of up to 179 days
(during each period of 360 days) if a nonpayment default exists with respect to
designated senior indebtedness. We cannot assure you that sufficient assets
will remain to make any payments to you or other holders of the Notes. In
addition, certain events of default under the Credit Agreement would prohibit
us from making any payments on the Notes. The terms "senior indebtedness" and
"designated senior indebtedness" are defined in the "Description of the Notes--
Subordination" section of this prospectus.
 
Notes are Unsecured--Your right to enforce remedies is limited by the rights of
holders of secured debt.
 
  In addition to being subordinate to all of our senior indebtedness, the Notes
will not be secured by any of our assets. Our obligations under our Credit
Agreement are secured by all of our inventory and accounts receivable and those
of our subsidiary guarantors and a pledge of the capital stock of each
guarantor. If we became insolvent or are liquidated, or if payment under our
Credit Agreement is accelerated, the lenders under our Credit Agreement will
have a prior right to such assets, and may foreclose upon such assets, to the
exclusion of holders of the Notes. Therefore, our bank lenders will have a
claim on certain of our assets before the holders of these Notes. See
"Description of the Notes" and "Description of Credit Agreement."
 
Restrictions in Credit Agreement and Indenture on Our Operations--We may not be
able to finance future needs or adapt our business plans to changes because of
restrictions placed on us by our lenders and noteholders.
 
  The operating and financial restrictions and covenants in our Credit
Agreement and the indenture governing the Notes adversely affect, and any
future financing agreements may also adversely affect, and in fact limit or
prohibit, our ability to finance future operations or capital needs, to respond
to changes in our business or competitive activities, or to engage in other
business activities. See "Description of the Notes" and "Description of Credit
Agreement." A breach of any of these restrictions or covenants could cause a
default under the Credit Agreement and the Notes and in some cases acceleration
of debt under other instruments that contain cross-default or
 
                                       17
<PAGE>
 
cross-acceleration provisions. A significant portion of our indebtedness then
may become immediately due and payable. We are not certain whether we would
have, or be able to obtain, sufficient funds to make these accelerated
payments, including payments on the Notes.
 
Possible Inability to Purchase Notes upon a Change of Control--We may be
prevented from financing, or may not have the ability to raise funds necessary
to finance, the change of control offer required by the Indenture.
 
  Upon certain change of control events, each holder of Notes may require us to
repurchase all or a portion of its notes at a purchase price equal to 101% of
the principal amount thereof, plus accrued interest. Our ability to repurchase
the Notes upon a change of control event is prohibited by the terms of our
Credit Agreement. Future agreements may contain a similar provision. Upon a
change of control event, we may be required immediately to repay the
outstanding principal, any accrued interest on and any other amounts owed by us
under our Credit Agreement. We cannot assure you that we would be able to repay
amounts outstanding under our Credit Agreement. Any requirement to offer to
purchase any outstanding Notes may result in us having to refinance our
outstanding indebtedness or obtain necessary consents under such agreement to
repurchase the Notes, which we may not be able to do. In the event that a
Change of Control occurs at a time when we are prohibited from purchasing the
Notes, we could seek the consent of our lenders to the purchase of the Notes or
could attempt to refinance the borrowings that contain such prohibition. If we
do not obtain such consent or repay such borrowings, we will remain prohibited
from purchasing the Notes. In such case, our failure to purchase Notes that are
tendered following a Change of Control would constitute an event of default
under the indenture which would, in turn, constitute a default under the Credit
Agreement and could constitute a default under other senior indebtedness. In
such circumstances, the subordination provisions in the indenture would likely
restrict payments to the holders of the Notes. In addition, even if we were
able to refinance such indebtedness, such financing may be on terms unfavorable
to us. The term "Change of Control" is defined in the "Description of the
Notes--Certain Definitions."
 
Integration of Acquired Companies--Any delay or inability to integrate
businesses we acquire could adversely affect our financial health.
 
  We have grown, and plan to continue to grow, by acquiring other companies in
our industry. Our future success is dependent on our ability to integrate our
past and future acquisitions into one enterprise with a common operating plan.
We must also monitor the performance of our acquired companies. Many of these
acquired companies must change their past operating systems such as accounting,
employment, purchasing and marketing. We may not be successful in our efforts
to integrate acquired companies or monitor their performance. If we are unable
to do so, or if we experience delays or unusual expenses in doing so, it could
have a material adverse effect on our business, financial condition and results
of operations.
 
Dependence on Acquisitions for Growth--If our acquisition program strategy is
not achieved, our growth will be diminished.
 
  We plan to grow primarily by acquisitions. This strategy requires that we
 
                                       18
<PAGE>
 
identify acquisition targets and negotiate and close acquisitions without
disrupting our existing operations. The strategy may result in the diversion of
our time from operating matters, which may cause the loss of business and
personnel. There are also possible adverse effects on earnings resulting from
the possible loss of acquired customer bases, amortization of goodwill created
in purchase transactions and the contingent and latent risks associated with
the past operations and other unanticipated problems arising in the acquired
business. Our success is dependent upon our ability to identify, acquire,
integrate and manage profitably acquired businesses. If we cannot do this, our
business and growth may be harmed.
 
Cyclical Nature of New Installation Market--Downturns in the construction
industry could cause our revenues from installing equipment to decrease.
 
  A substantial portion of our business involves installation of mechanical and
electrical systems in newly constructed residences and commercial/industrial
facilities. Our revenues from new installations services in the residential
market is dependent upon the level of housing starts in the areas in which we
operate. The housing industry is cyclical, and our revenues from new
residential installation will be affected by the factors that affect the
housing industry. These factors include changes in employment and income
levels, the availability and cost of financing for new home buyers and general
economic conditions. The level of new commercial/industrial installation
services is also affected by changes in economic conditions and interest rates.
General downturns in housing starts or new commercial/industrial construction
in the areas in which we operate could have a material adverse effect on our
business, including its financial condition and results of operations.
 
Availability of Technicians--A skilled labor force is important to our planned
internal growth.
 
  Our ability to provide high-quality mechanical and electrical services on a
timely basis requires an adequate supply of skilled technicians. Shortages of
qualified technicians sometimes occur. We cannot assure you that we will be
able to maintain an adequate skilled labor force or that our labor expenses
will not increase. A shortage of skilled labor would require us to curtail our
planned internal growth.
 
Weather--Our profitability will be affected by prolonged bad weather or
seasonal variations.
 
  Our business tends to be affected adversely by moderate weather patterns.
Comparatively warm winters and cool summers reduce the demand for our
maintenance, repair and replacement services. Additionally, our new
installation business is affected adversely by extremely cold weather and large
amounts of rain. As a result, we expect our revenues and operating results to
be lower in our first and, to a lesser degree, fourth calendar quarters.
Prolonged weather conditions or seasonal variations may cause unpredictable
fluctuations in operating results.
 
Competition--We face competition from owner-operated companies and large public
companies and utilities for the services we provide and for companies we may
want to acquire.
 
  The mechanical and electrical and plumbing service industries are very
 
                                       19
<PAGE>
 
competitive. These industries are served by small, owner-operated private
companies and by larger companies operating nationwide, including unregulated
affiliates of electric and gas public utilities and HVAC equipment
manufacturers, and there are few barriers to entry. Certain of the smaller
competitors have lower overhead cost structures and may be able to provide
their services at lower rates than we can. Some of the larger competitors have
greater financial resources, name recognition or other competitive advantages
and may be willing to pay higher prices than we are willing to pay for the same
opportunities. Consequently, we may encounter significant competition in our
efforts to achieve our growth objectives.
 
Dependence on Key Personnel--Our business may suffer if we do not retain our
management and the management of any company we acquire.
 
  We depend on our executive officers and senior management personnel and on
the senior management of significant businesses we acquire. Our business could
be affected adversely if these persons do not continue in their roles and we
are unable to attract and retain qualified replacements. We do not maintain
key-man insurance on our executive officers and senior management personnel.
 
Dependence on Additional Capital for Future Growth--If we cannot use our common
stock or raise capital for consideration in acquisitions, we may not be able to
grow our business by acquisitions.
 
  We have financed capital expenditures and acquisitions primarily through the
issuance of equity securities, secured bank borrowings and internally generated
cash flow. We currently intend to finance future acquisitions by using shares
of our common stock for a significant portion of the consideration to be paid.
If our common stock does not maintain a sufficient market value, or if
potential acquisition candidates are otherwise unwilling to accept our common
stock as part of the consideration for the sale of their businesses, we may be
required to utilize more of our cash resources, if available, in order to
initiate and maintain our acquisition program. We cannot assure you that we
will be able to raise the additional capital required. If we cannot do so, our
growth through acquisitions may be limited.
 
Dependence on Subsidiaries for Cash Flow--We rely on our subsidiaries for our
operating funds and our subsidiaries have no obligation to supply us with any
funds.
 
  We conduct our operations through subsidiaries and are dependent upon our
subsidiaries for the funds we need to operate. We will be dependent on the
transfer of funds from our subsidiaries to make the payments due under the
notes. Each of our subsidiaries is a distinct legal entity and has no
obligation, contingent or otherwise, to transfer funds to us. Our ability to
pay the Notes, and the ability of our subsidiaries to transfer funds to us,
could be restricted by the terms of subsequent financings.
 
Fraudulent Transfer Considerations--Federal and state statutes allow courts,
under specific circumstances, to void guarantees and require noteholders to
return payments received from guarantors.
 
  Creditors of any business are protected by fraudulent conveyance laws which
differ among various jurisdictions, and these laws
 
                                       20
<PAGE>
 
may apply to the issuance of the guarantees by our subsidiaries. The guarantees
may be voided by a court, or subordinated to the claims of other creditors, if
 
 . a guarantee was incurred by a subsidiary with actual intent to hinder, delay
  or defraud any present or future creditor of the subsidiary, or
 
 . a subsidiary did not receive fair consideration--or reasonably equivalent
  value--for issuing its guarantee, and the subsidiary
 
  --was insolvent,
 
  --was rendered insolvent by reason of issuing the guarantee,
 
  --was engaged or about to engage in a business or transaction for which the
    remaining assets of the subsidiary constituted unreasonably small
    capital, or
 
  --intended to incur, or believed that it would incur, debts beyond its
    ability to pay as they matured.
 
  If a guarantee of a subsidiary were voided as a fraudulent conveyance or held
unenforceable for any other reason, holders of the Notes would be solely our
creditors and creditors of our other subsidiaries that have guaranteed the
Notes. The Notes then would be effectively subordinated to all obligations of
the subsidiary. To the extent that the claims of the holders of the Notes
against any subsidiary were subordinated in favor of other creditors of such
subsidiary, such other creditors would be entitled to be paid in full before
any payment could be made on the Notes. If one or more of the guarantees is
voided or subordinated, we cannot assure you that after providing for all prior
claims, there would be sufficient assets remaining to satisfy the claims of
holders of the Notes.
 
  Based upon financial and other information, we believe that the Notes and the
guarantees are being incurred for proper purposes and in good faith and that
the Company and each subsidiary is solvent and will continue to be solvent
after this offering is completed, will have sufficient capital for carrying on
its business after such issuance and will be able to pay its debts as they
mature. We cannot assure you, however, that a court reviewing these matters
would agree with us. A legal challenge to a guarantee on fraudulent conveyance
grounds may focus on the benefits, if any, realized by the subsidiary as a
result of our issuance of the Notes.
 
Lack of Public Market for the Notes
 
  The Original Notes have not been registered under the Securities Act, and may
not be resold by purchasers thereof unless the Original Notes are subsequently
registered or an exemption from the registration requirements of the Securities
Act is available. While the Original Notes are at present eligible for trading
in the PORTAL market of the Nasdaq Stock Market, Inc., the Exchange Notes will
not be so eligible, and there can be no assurance, even following registration
or exchange of the Original Notes for Exchange Notes, that an active trading
market for the Original Notes or the Exchange Notes will exist. At the time of
the private placement of the Original Notes, the Initial Purchasers advised the
Company that they intended to make a market in the Original Notes and, if
issued, the Exchange Notes. However, the Initial Purchasers are not obligated
to make a market in the Original Notes or the Exchange Notes, and any such
market-making may be discontinued at any time at the sole discretion of the
Initial Purchasers. No assurance can be given as to the liquidity of or trading
market for the Original Notes or the Exchange Notes.
 
                                       21
<PAGE>
 
Consequences to Non-Tendered Holders of Original Notes--The market value of
your Original Notes may be lower if you do not exchange your Original Notes or
fail to properly tender your Original Notes for exchange.
 
  Consequences of Failure to Exchange. To the extent that Original Notes are
tendered and accepted for exchange pursuant to the Exchange Offer, the trading
market for Original Notes that remain outstanding may be significantly more
limited, which might adversely affect the liquidity of the Original Notes not
tendered for exchange. The extent of the market and the availability of price
quotations for Original Notes would depend upon a number of factors, including
the number of holders of Original Notes remaining at such time and the interest
in maintaining a market in such Original Notes on the part of securities firms.
An issue of securities with a smaller outstanding market value available for
trading (the "float") may command a lower price than would a comparable issue
of securities with a greater float. Therefore, the market price for Original
Notes that are not exchanged in the Exchange Offer may be affected adversely to
the extent that the amount of Original Notes exchanged pursuant to the Exchange
Offer reduces the float. The reduced float also may tend to make the trading
price of the Original Notes that are not exchanged more volatile.
 
  Consequences of Failure to Properly Tender. Issuance of the Exchange Notes in
exchange for the Original Notes pursuant to the Exchange Offer will be made
following the prior satisfaction, or waiver, of the conditions set forth in
"The Exchange Offer--Conditions to the Exchange Offer" and only after timely
receipt by the Exchange Agent of such Original Notes, a properly completed and
duly executed Letter of Transmittal and all other required documents.
Therefore, holders of Original Notes desiring to tender such Original Notes in
exchange for Exchange Notes should allow sufficient time to ensure timely
delivery of all required documentation. Neither we, the Exchange Agent nor any
other person is under any duty to give notification of defects or
irregularities with respect to the tenders of Original Notes for exchange.
Original Notes that may be tendered in the Exchange Offer but which are not
validly tendered will, following the consummation of the Exchange Offer, remain
outstanding and will continue to be subject to the same transfer restrictions
currently applicable to such Original Notes.
                                       22
<PAGE>
 
                               THE EXCHANGE OFFER
 
Registration Rights
 
  At the closing of the offering of the Original Notes, we entered into the
Registration Rights Agreement with the Initial Purchasers pursuant to which we
agreed, for the benefit of the holders of the Original Notes, at our cost,
 
 . within 90 days after the date of the original issue of the Original Notes, to
  file an Exchange Offer Registration Statement with the SEC with respect to
  the Exchange Offer for the Exchange Notes, and
 
 . to use our reasonable efforts to cause the Exchange Offer Registration
  Statement to be declared effective under the Securities Act within 150 days
  after the date of original issuance of the Original Notes.
 
  Upon the Exchange Offer Registration Statement being declared effective, we
agreed to offer the Exchange Notes in exchange for surrender of the Original
Notes. We agreed to keep the Exchange Offer open for not less than 20 business
days (or longer if required by applicable law) after the date notice of the
Exchange Offer is mailed to the holders of the Original Notes.
 
  For each Original Note surrendered to us pursuant to its Exchange Offer, the
holder of such Original Note will receive an Exchange Note having a principal
amount equal to that of the surrendered Note. Interest on each Exchange Note
will accrue from the last interest payment date on which interest was paid on
the Original Note surrendered in exchange therefor or, if no interest has been
paid on such Original Note, from the date of its original issue. The
Registration Rights Agreement also provides an agreement to include in the
prospectus for the Exchange Offer certain information necessary to allow a
broker-dealer who holds Original Notes that were acquired for its own account
as a result of market-making activities or other ordinary course trading
activities (other than Original Notes acquired directly from us or one of our
affiliates) to exchange such Original Notes pursuant to the Exchange Offer and
to satisfy the prospectus delivery requirements in connection with resales of
Exchange Notes received by such broker-dealer in the Exchange Offer. We agreed
to maintain the effectiveness of the Registration Statement for these purposes
for 180 days after the consummation of the Exchange Offer.
 
  The preceding agreement is needed because any broker-dealer who acquires
Original Notes for its own account as a result of market-making activities or
other trading activities is required to deliver a prospectus meeting the
requirements of the Securities Act. This Prospectus covers the offer and sale
of the Exchange Notes pursuant to the Exchange Offer made hereby and the resale
of Exchange Notes received in the Exchange Offer by any broker-dealer who held
Original Notes acquired for its own account as a result of market-making
activities or other trading activities other than Original Notes acquired
directly from us or one of our affiliates.
 
  Under existing interpretations of the staff of the SEC contained in several
no-action letters to third parties, the Exchange Notes would in general be
freely tradeable after the Exchange Offer without further registration under
the Securities Act. However, any purchaser of Original Notes who is an
"affiliate" of ours or who intends to participate in the Exchange Offer for the
purpose of distributing the Exchange
                                       23
<PAGE>
 
Notes (1) will not be able to rely on the interpretation of the staff of the
Commission, (2) will not be able to tender its Original Notes in the Exchange
Offer and (3) must comply with the registration and prospectus delivery
requirements of the Securities Act in connection with any sale or transfer of
the Original Notes unless such sale or transfer is made pursuant to an
exemption from such requirements.
 
  Each holder of the Original Notes (other than certain specified holders) who
wishes to exchange Original Notes for Exchange Notes in the Exchange Offer will
be required to make certain representations, including that (1) it is not an
affiliate of ours, (2) any Exchange Notes to be received by it were acquired in
the ordinary course of its business and (3) at the time of commencement of the
Exchange Offer, it has no arrangement with any person to participate in the
distribution (within the meaning of the Securities Act) of the Exchange Notes.
 
  In the event that any changes in law or the applicable interpretations of the
staff of the SEC do not permit us to effect the Exchange Offer, or if for any
other reason the Exchange Offer is not consummated within 180 days of the date
of issuance and sale of the Original Notes, or upon request of the Initial
Purchasers (under certain circumstances), we will, at our cost,
 
 . as promptly as practicable, file a Shelf Registration Statement (which may be
  an amendment of the Registration Statement of which this Prospectus is a
  part) covering resales of the Original Notes,
 
 . use all reasonable efforts to cause the Shelf Registration Statement to be
  declared effective under the Securities Act, and
 
 . use all reasonable efforts to keep effective the Shelf Registration Statement
  until two years after its effective date (or until all Original Notes have
  been sold pursuant to the Shelf Registration Statement).
 
  We will, in the event of the filing of a Shelf Registration Statement, (1)
provide to each holder of the Original Notes copies of the prospectus which is
a part of the Shelf Registration Statement, (2) notify each such holder when
the Shelf Registration Statement for the Original Notes has become effective,
and (3) take certain other actions as are required to permit unrestricted
resales of the Original Notes. A holder of Original Notes that sells such
Original Notes pursuant to the Shelf Registration Statement generally will be
required to be named as a selling security holder in the related prospectus and
to deliver a prospectus to purchasers, will be subject to certain of the civil
liability provisions under the Securities Act in connection with such sales and
will be bound by the provisions of the Registration Rights Agreement which are
applicable to such holder (including certain indemnification obligations). In
addition, each holder of the Original Notes will be required to deliver
information to be used in connection with the Shelf Registration Statement and
to provide comments on the Shelf Registration Statement within the time periods
set forth in the Registration Rights Agreement in order to have their Original
Notes included in the Shelf Registration Statement and to benefit from the
provisions regarding liquidated damages set forth in the following paragraph.
 
  The interest rate borne by the Original Notes will be increased by one-
quarter of one percent per annum with respect to the first 90-day period (or
portion thereof) following the failure of
 
    (1) the Exchange Offer Registration Statement to be filed with the
 
                                       24
<PAGE>
 
  SEC on or prior to the 90th calendar day following the date of original
  issue of the Original Notes,
 
    (2) the Exchange Offer Registration Statement or, if required in lieu
  thereof, the Shelf Registration Statement, to be declared effective on or
  prior to the 150th calendar day following the date of original issue of the
  Original Notes,
 
    (3) once effective, the Exchange Offer Registration Statement or the
  Shelf Registration Statement to be effective or the prospectus to be usable
  under certain circumstances, or
 
    (4) the Exchange Offer to be consummated within 180 days of the original
  issue of the Original Notes.
 
  The amount of such additional interest will increase by an additional one-
quarter of one percent to a maximum of one-half of one percent per annum for
each subsequent 90-day period (or portion thereof) until the specified event
has occurred. Any additional interest is in each case payable in cash
semiannually, in arrears, on January 15 and July 15 of each year. If the
interest rate borne by the Original Notes is increased for any of these
reasons, it will return to the original interest rate upon
 
      (w) the filing of the Exchange Offer Registration Statement in the
    case of clause (1) above,
 
      (x) the effectiveness of the Exchange Offer Registration Statement or
    Shelf Registration Statement in the case of clause (2) above,
 
      (y) the reeffectiveness of the Exchange Offer Registration Statement
    or a Shelf Registration Statement in the case of clause (3) above, or
 
      (z) the consummation of the Exchange Offer in the case of clause (4)
    above.
 
  This summary of certain provisions of the Registration Rights Agreement does
not purport to be complete and is subject to, and is qualified in its entirety
by reference to, all the provisions of the Registration Rights Agreement, a
copy of which is filed as an exhibit to the registration statement of which
this prospectus is a part.
 
  Except as set forth above, after consummation of the Exchange Offer, holders
of Original Notes have no registration or exchange rights under the
Registration Rights Agreement. See "--Consequences of Failure to Exchange," and
"--Resales of Exchange Notes; Plan of Distribution."
 
Consequences of Failure to Exchange
 
  The Original Notes which are not exchanged for Exchange Notes pursuant to the
Exchange Offer and are not included in a resale prospectus which, if required,
will be filed as part of an amendment to the Registration Statement, will
remain restricted securities and subject to restrictions on transfer.
Accordingly, such Original Notes may be resold
 
    (1) to us (upon redemption thereof or otherwise),
 
    (2) so long as the Original Notes are eligible for resale pursuant to
  Rule 144A, to a person whom the seller reasonably believes is a qualified
  institutional buyer within the meaning of Rule 144A under the Securities
  Act, purchasing for its own account or for the account of a qualified
  institutional buyer to whom notice is given that the resale, pledge or
  other transfer is being made in reliance on Rule 144A,
 
                                       25
<PAGE>
 
    (3) in an offshore transaction in accordance with Regulation S under the
  Securities Act,
 
    (4) pursuant to an exemption from registration in accordance with Rule
  144 (if available) under the Securities Act,
 
    (5) in reliance on another exemption from the registration requirements
  of the Securities Act, or
 
    (6) pursuant to an effective registration statement under the Securities
  Act.
 
  In all of the situations discussed above, the resale must be in accordance
with any applicable securities laws of any state of the United States and
subject to certain requirements of the registrar or co-registrar being met,
including receipt by the registrar or co-registrar of a certification and, in
the case of (3), (4) and (5) above, an opinion of counsel reasonably acceptable
to us and the registrar.
 
  To the extent Original Notes are tendered and accepted in the Exchange Offer,
the principal amount of outstanding Original Notes will decrease with a
resulting decrease in the liquidity in the market therefor. Accordingly, the
liquidity of the market of the Original Notes could be adversely affected. See
"Risk Factors--Consequences to Non-Tendering Holders of Original Notes."
 
Terms of the Exchange Offer
 
  Upon the terms and subject to the conditions set forth in the Prospectus and
in the Letter of Transmittal, a copy of which is attached to this Prospectus as
Annex A, we will accept any and all Original Notes validly tendered and not
withdrawn prior to the Expiration Date. We will issue $1,000 principal amount
of Exchange Notes in exchange for each $1,000 principal amount of Original
Notes accepted in the Exchange Offer. Holders may tender some or all of their
Original Notes pursuant to the Exchange Offer. However, Original Notes may be
tendered only in integral multiples of $1,000 principal amount.
 
  The form and terms of the Exchange Notes are the same as the form and terms
of the Original Notes, except that
 
 . the Exchange Notes will have been registered under the Securities Act and
  hence will not bear legends restricting their transfer pursuant to the
  Securities Act, and
 
 . except as otherwise described above, holders of the Exchange Notes will not
  be entitled to the rights of holders of Original Notes under the Registration
  Rights Agreement.
 
  The Exchange Notes will evidence the same debt as the Original Notes which
they replace, and will be issued under, and be entitled to the benefits of, the
Indenture which governs all of the Notes.
 
  Solely for reasons of administration and for no other purpose, we have fixed
the close of business on          , 1999 as the record date for the Exchange
Offer for purposes of determining the persons to whom this Prospectus and the
Letter of Transmittal will be mailed initially. Only a registered holder of
Original Notes or such holder's legal representative or attorney-in-fact as
reflected on the records of the trustee under the Indenture may participate in
the Exchange Offer. There will be no fixed record date for determining
registered holders of the Original Notes entitled to participate in the
Exchange Offer.
                                       26
<PAGE>
 
  Holders of the Original Notes do not have any appraisal or dissenters' rights
under the Texas Business Corporation Act or the Indenture in connection with
the Exchange Offer. We intend to conduct the Exchange Offer in accordance with
the applicable requirements of the Exchange Act and the rules and regulations
of the SEC thereunder.
 
  We shall be deemed to have accepted validly tendered Original Notes when, as
and if they have given oral or written notice thereof to the Exchange Agent.
The Exchange Agent will act as agent for the tendering holders of the Original
Notes for the purposes of receiving the Exchange Notes. The Exchange Notes
delivered pursuant to the Exchange Offer will be issued on the earliest
practicable date following the acceptance for exchange of Original Notes by us.
 
  If any tendered Original Notes are not accepted for exchange because of an
invalid tender, the occurrence of certain other events set forth herein or
otherwise, certificates for any such unaccepted Original Notes will be
returned, without expense, to the tendering holder thereof as promptly as
practicable after the Expiration Date.
 
  Holders who tender Original Notes in the Exchange Offer will not be required
to pay brokerage commissions of fees or, subject to the instructions in the
Letter of Transmittal, transfer taxes with respect to the exchange of the
Original Notes pursuant to the Exchange Offer. We will pay all charges and
expenses, other than certain applicable taxes, in connection with the Exchange
Offer. See "--Fees and Expenses."
 
Expiration Date; Extensions; Amendments
 
  The term "Expiration Date" shall mean 5:00 p.m., New York City time, on
           , 1999, unless we, in our sole discretion, extend the Exchange
Offer, in which case the term "Expiration Date" shall mean the latest date and
time to which the Exchange Offer is extended.
 
  In order to extend the Exchange Offer, we will notify the Exchange Agent of
any extension by oral or written notice and will make a public announcement
thereof, each prior to 9:00 a.m., New York City time, on the next business day
after the previously scheduled Expiration Date.
 
  We reserve the right, in our sole discretion,
 
    (1) to delay accepting any Original Notes,
 
    (2) to extend the Exchange Offer,
 
    (3) if any of the conditions set forth below under "--Conditions to the
  Exchange Offer" have not been satisfied, to terminate the Exchange Offer,
  by giving oral or written notice of such delay, extension or termination to
  the Exchange Agent, or
 
    (4) to amend the terms of the Exchange Offer in any manner.
 
  Except as specified in the second paragraph under this heading, any such
delay in acceptance, extension, termination or amendment will be followed as
promptly as practicable by a public announcement thereof. If the Exchange Offer
is amended in a manner determined by us to constitute a material change, we
will promptly disclose such amendment by means of a prospectus supplement that
will be distributed to the registered holders of the Original Notes. The
Exchange Offer will then be extended for a period of five to 10 business days,
as
 
                                       27
<PAGE>
 
required by law, depending upon the significance of the amendment and the
manner of disclosure to the registered holders, if the Exchange Offer would
otherwise expire during such five to 10 business day period.
 
  Without limiting the manner in which we may choose to make a public
announcement of any delay, extension, termination or amendment of this Exchange
Offer, we shall not have an obligation to publish, advertise, or otherwise
communicate any such public announcement, other than by making a timely release
thereof to the Dow Jones News Service.
 
Procedures for Tendering Original Notes
 
  Tenders of Original Notes. The tender by a holder of Original Notes pursuant
to any of the procedures set forth below will constitute the tendering holder's
acceptance of the terms and conditions of the Exchange Offer. Our acceptance
for exchange of Original Notes tendered pursuant to any of the procedures
described below will constitute a binding agreement between such tendering
holder and us in accordance with the terms and subject to the conditions of the
Exchange Offer. Only holders are authorized to tender their Original Notes. The
procedures by which Original Notes may be tendered by beneficial owners that
are not holders will depend upon the manner in which the Original Notes are
held.
 
  DTC has authorized DTC participants that are beneficial owners of Original
Notes through DTC to tender their Original Notes as if they were holders. To
effect a tender, DTC participants should either (1) complete and sign the
Letter of Transmittal or a facsimile thereof, have the signature thereon
guaranteed if required by Instruction 1 of the Letter of Transmittal, and mail
or deliver the Letter of Transmittal or such facsimile pursuant to the
procedures for book-entry transfer set forth below under "--Book-Entry Delivery
Procedures," or (2) transmit their acceptance to DTC through the DTC Automated
Tender Offer Program ("ATOP"), for which the transaction will be eligible, and
follow the procedures for book-entry transfer set forth below under""--Book-
Entry Delivery Procedures."
 
  Tender of Original Notes Held in Physical Form. To tender effectively
Original Notes held in physical form pursuant to the Exchange Offer,
 
 . a properly completed Letter of Transmittal (or a facsimile thereof) duly
  executed by the holder thereof, and any other documents required by the
  Letter of Transmittal, must be received by the Exchange Agent at one of its
  addresses set forth below, and tendered Original Notes must be received by
  the Exchange Agent at such address (or delivery effected through the deposit
  of Original Notes into the Exchange Agent's account with DTC and making book-
  entry delivery as set forth below) on or prior to the Expiration Date, or
 
 . the tendering holder must comply with the guaranteed delivery procedure set
  forth below.
 
  Letters of Transmittal or Original Notes should be sent only to the Exchange
Agent and should not be sent to us.
 
  Tender of Original Notes Held Through a Custodian. To tender effectively
Original Notes that are held of record by a custodian bank, depository,
                                       28
<PAGE>
 
broker, trust company or other nominee, the beneficial owner thereof must
instruct such holder to tender the Original Notes on the beneficial owner's
behalf. A Letter of Instructions from the record owner to the beneficial owner
may be included in the materials provided along with this Prospectus which may
be used by the beneficial owner in this process to instruct the registered
holder of such owner's Original Notes to effect the tender.
 
  Tender of Original Notes Held Through DTC. To tender effectively Original
Notes that are held through DTC, DTC participants should either
 
 . properly complete and duly execute the Letter of Transmittal (or a facsimile
  thereof), and any other documents required by the Letter of Transmittal, and
  mail or deliver the Letter of Transmittal or such facsimile pursuant to the
  procedures for book-entry transfer set forth below or
 
 . transmit their acceptance through ATOP, for which the transaction will be
  eligible, and DTC will then edit and verify the acceptance and send an
  Agent's Message to the Exchange Agent for its acceptance.
 
  Delivery of tendering Original Notes held through DTC must be made to the
Exchange Agent pursuant to the book-entry delivery procedures set forth below
or the tendering DTC participant must comply with the guaranteed delivery
procedures set forth below.
 
  The method of delivery of Original Notes and Letters of Transmittal, any
required signature guarantees and all other required documents, including
delivery through DTC and any acceptance or Agent's Message transmitted through
ATOP, is at the election and risk of the person tendering Original Notes and
delivering Letters of Transmittal. Except as otherwise provided in the Letter
of Transmittal, delivery will be deemed made only when actually received by the
Exchange Agent. If delivery is by mail, it is suggested that the holder use
properly insured, registered mail with return receipt requested, and that the
mailing be made sufficiently in advance of the Expiration Date to permit
delivery to the Exchange Agent prior to such date.
 
  Except as provided below, unless the Original Notes being tendered are
deposited with the Exchange Agent on or prior to the Expiration Date
(accompanied by a properly completed and duly executed Letter of Transmittal or
a properly transmitted Agent's Message), GroupMAC may, at its option, reject
such tender. Exchange of Exchange Notes for the Original Notes will be made
only against deposit of the tendered Original Notes and delivery of all other
required documents.
 
  Book-Entry Delivery Procedures. The Exchange Agent will establish accounts
with respect to the Original Notes at DTC for purposes of the Exchange Offer
within two business days after the date of this Prospectus, and any financial
institution that is a participant in DTC may make book-entry delivery of the
Original Notes by causing DTC to transfer such Original Notes into the Exchange
Agent's account in accordance with DTC's procedures for such transfer. However,
although delivery of Original Notes may be effected through book-entry at DTC,
the Letter of Transmittal (or facsimile thereof), with any required signature
guarantees or an Agent's Message in connection with a book-entry transfer, and
any other required documents, must, in any
 
                                       29
<PAGE>
 
case, be transmitted to and received by the Exchange Agent at one or more of
its addresses set forth in this Prospectus on or prior to the Expiration Date,
or compliance must be made with the guaranteed delivery procedures described
below. Delivery of documents to DTC does not constitute delivery to the
Exchange Agent. The confirmation of a book-entry transfer into the Exchange
Agent's account at DTC as described above is referred to herein as a "Book-
Entry Confirmation."
 
  The term "Agent's Message" means a message transmitted by DTC to, and
received by, the Exchange Agent and forming a part of the Book-Entry
Confirmation, which states that DTC has received an express acknowledgment from
each participant in DTC tendering the Original Notes and that such participant
has received the Letter of Transmittal and agrees to be bound by the terms of
the Letter of Transmittal and we may enforce such agreement against such
participant.
 
  Signature Guarantees. Signatures on all Letters of Transmittal must be
guaranteed by a recognized member of the Medallion Signature Guarantee Program
or by any other "eligible guarantor institution," as such term is defined in
Rule 17Ad-15 promulgated under the Exchange Act (each of the foregoing, an
"Eligible Institution"), unless the Original Notes tendered thereby are
tendered (1) by a registered holder of Original Notes (or by a participant in
DTC whose name appears on a DTC security position listing as the owner of such
Original Notes) who has not completed either the box entitled "Special Issuance
Instructions" or "Special Delivery Instructions" on the Letter of Transmittal,
or (2) for the account of an Eligible Institution. See Instruction 1 of the
Letter of Transmittal. If the Original Notes are registered in the name of a
person other than the signer of the Letter of Transmittal or if Original Notes
not accepted for exchange or not tendered are to be returned to a person other
than the registered holder, then the signatures on the Letter of Transmittal
accompanying the tendered Original Notes must be guaranteed by an Eligible
Institution as described above. See Instructions 1 and 5 of the Letter of
Transmittal.
 
  Guaranteed Delivery. If a holder desires to tender Original Notes pursuant to
the Exchange Offer and time will not permit the Letter of Transmittal,
certificates representing such Original Notes and all other required documents
to reach the Exchange Agent, or the procedures for book-entry transfer cannot
be completed, on or prior to the Expiration Date, such Original Notes may
nevertheless be tendered if all the following conditions are satisfied:
 
    (1) the tender is made by or through an Eligible Institution;
 
    (2) a properly completed and duly executed Notice of Guaranteed Delivery,
  substantially in the form provided by GroupMAC herewith, or an Agent's
  Message with respect to guaranteed delivery that is accepted by GroupMAC,
  is received by the Exchange Agent on or prior to the Expiration Date, as
  provided below; and
 
    (3) the certificates for the tendered Original Notes, in proper form for
  transfer (or a Book-Entry Confirmation of the transfer of such Original
  Notes into the Exchange Agent's account at DTC as described above),
  together with a Letter of Transmittal (or facsimile thereof), property
  completed and duly executed, with any required signature
 
                                       30
<PAGE>
 
  guarantees and any other documents required by the Letter of Transmittal or
  a properly transmitted Agent's Message, are received by the Exchange Agent
  within two business days after the date of execution of the Notice of
  Guaranteed Delivery.
 
  The Notice of Guaranteed Delivery may be sent by hand delivery, telegram,
facsimile transmission or mail to the Exchange Agent and must include a
guarantee by an Eligible Institution in the form set forth in the Notice of
Guaranteed Delivery.
 
  Notwithstanding any other provision hereof, delivery of Exchange Notes by
the Exchange Agent for Original Notes tendered and accepted for exchange
pursuant to the Exchange Offer will, in all cases, be made only after timely
receipt by the Exchange Agent of such Original Notes (or Book-Entry
Confirmation of the transfer of such Original Notes into the Exchange Agent's
account at DTC as described above), and a Letter of Transmittal (or facsimile
thereof) with respect to such Original Notes, properly completed and duly
executed, with any required signature guarantees and any other documents
required by the Letter of Transmittal, or a properly transmitted Agent's
Message.
 
  Determination of Validity. All questions as to the validity, form,
eligibility (including time of receipt), acceptance and withdrawal of tendered
Original Notes will be determined by us in our sole discretion, which
determination will be final and binding. We reserve the absolute right to
reject any and all Original Notes not properly tendered or any Original Notes
our acceptance of which, in the opinion of our counsel, would be unlawful.
 
  We also reserve the right to waive any defects, irregularities or conditions
of tender as to particular Original Notes. The interpretation of the terms and
conditions of its Exchange Offer (including the instructions in the Letter of
Transmittal) by us will be final and binding on all parties. Unless waived,
any defects or irregularities in connection with tenders of Original Notes
must be cured within such time as we shall determine.
 
  Although we intend to notify holders of defects or irregularities with
respect to tenders of Original Notes, neither we, the Exchange Agent nor any
other person is under any duty to give such notice, nor shall they incur any
liability for failure to give such notification. Tenders of Original Notes
will not be deemed to have been made until such defects or irregularities have
been cured or waived.
 
  Any Original Notes received by the Exchange Agent that are not validly
tendered and as to which the defects or irregularities have not been cured or
waived, or if Original Notes are submitted in a principal amount greater than
the principal amount of Original Notes being tendered by such tendering
holder, such unaccepted or non-exchanged Original Notes will either be
 
    (1) returned by the Exchange Agent to the tendering holders, or
 
    (2) in the case of Original Notes tendered by book-entry transfer into
  the Exchange Agent's account at the Book-Entry Transfer Facility pursuant
  to the book-entry transfer procedures described below, credited to an
  account maintained with such Book-Entry Transfer Facility.
 
  By tendering, each registered holder will represent to us that, among other
things,
 
    (1) the Exchange Notes to be acquired by the holder and any beneficial
 
                                      31
<PAGE>
 
  owner(s) of the Original Notes ("Beneficial Owner(s)") in connection with
  the Exchange Offer are being acquired by the holder and any Beneficial
  Owner(s) in the ordinary course of business of the holder and any
  Beneficial Owner(s),
 
    (2) the holder and each Beneficial Owner are not participating, do not
  intend to participate, and have no arrangement or understanding with any
  person to participate, in a distribution of the Exchange Notes,
 
    (3) the holder and each Beneficial Owner acknowledge and agree that (x)
  any person participating in the Exchange Offer for the purpose of
  distributing the Exchange Notes must comply with the registration and
  prospectus delivery requirements of the Securities Act in connection with a
  secondary resale transaction with respect to the Exchange Notes acquired by
  such person and cannot rely on the position of the Staff of the SEC set
  forth in no-action letters that are discussed herein under "--Resale of the
  Exchange Notes; Plan of Distribution," and (y) any broker-dealer that
  receives Exchange Notes for its own account in exchange for Original Notes
  pursuant to the Exchange Offer must delivery a prospectus in connection
  with any resale of such Exchange Notes, but by so acknowledging, the holder
  shall not be deemed to admit that, by delivering a prospectus, it is an
  "underwriter" within the meaning of the Securities Act,
 
    (4) neither the holder nor any Beneficial Owner is an "affiliate," as
  defined under Rule 405 of the Securities Act, of ours except as otherwise
  disclosed to us in writing, and
 
    (5) the holder and each Beneficial Owner understands that a secondary
  resale transaction described in clause (3) above should be covered by an
  effective registration statement containing the selling securityholder
  information required by Item 507 of Regulation S-K of the SEC.
 
  Each broker-dealer that receives Exchange Notes for its own account in
exchange for Original Notes, where such Original Notes were acquired by such
broker-dealer as a result of market-making activities or other trading
activities, must acknowledge that it will deliver a prospectus in connection
with any resale of such Exchange Notes. See "--Resale of the Exchange Notes;
Plan of Distribution."
 
Withdrawal of Tenders
 
  Except as otherwise provided herein, tenders of Original Notes pursuant to
the Exchange Offer may be withdrawn, unless theretofore accepted for exchange
as provided in the Exchange Offer, at any time prior to the Expiration Date.
 
  To be effective, a written or facsimile transmission notice of withdrawal
must be received by the Exchange Agent at its address set forth herein prior to
the Expiration Date. Any such notice of withdrawal must
 
 . specify the name of the person having deposited the Original Notes to be
  withdrawn (the "Depositor"),
 
 . identify the Original Notes to be withdrawn, including the certificate number
  or numbers of the particular certificates evidencing the Original Notes
  (unless such Original Notes were tendered by book-entry transfer), and
 
                                       32
<PAGE>
 
  aggregate principal amount of such Original Notes, and
 
 . be signed by the holder in the same manner as the original signature on the
  Letter of Transmittal (including any required signature guarantees) or be
  accompanied by documents of transfer sufficient to have the Trustee under the
  Indenture register the transfer of the Original Notes into the name of the
  person withdrawing such Original Notes.
 
  If Original Notes have been delivered pursuant to the procedures for book-
entry transfer set forth in "--Procedures for Tendering Original Notes--Book-
Entry Delivery Procedures," any notice of withdrawal must specify the name and
number of the account at the appropriate book-entry transfer facility to be
credited with such withdrawn Original Notes and must otherwise comply with such
book-entry transfer facility's procedures.
 
  If the Original Notes to be withdrawn have been delivered or otherwise
identified to the Exchange Agent, a signed notice of withdrawal meeting the
requirements we discussed above is effective immediately upon written or
facsimile notice of withdrawal even if physical release is not yet effected. A
withdrawal of Original Notes can only be accomplished in accordance with these
procedures.
 
  All questions as to the validity, form and eligibility (including time of
receipt) of such notices will be determined by us in our sole discretion, which
determination shall be final and binding on all parties. No withdrawal of
Original Notes will be deemed to have been properly made until all defects or
irregularities have been cured or expressly waived. Neither we, the Exchange
Agent nor any other person will be under any duty to give notification of any
defects or irregularities in any notice of withdrawal or revocation, nor shall
they incur any liability for failure to give any such notification. Any
Original Notes so withdrawn will be deemed not to have been validly tendered
for purposes of the Exchange Offer and no Exchange Notes will be issued with
respect thereto unless the Original Notes so withdrawn are retendered. Properly
withdrawn Original Notes may be retendered by following one of the procedures
described above under "--Procedures for Tendering Original Notes" at any time
prior to the Expiration Date.
 
  Any Original Notes which have been tendered but which are not accepted for
exchange due to the rejection of the tender due to uncured defects or the prior
termination of the Exchange Offer, or which have been validly withdrawn, will
be returned to the holder thereof unless otherwise provided in the Letter of
Transmittal, as soon as practicable following the Expiration Date or, if so
requested in the notice of withdrawal, promptly after receipt by us of notice
of withdrawal without cost to such holder.
 
Conditions to the Exchange Offer
 
  The Exchange Offer shall not be subject to any conditions, other than that
 
    (1) the SEC has issued an order or orders declaring the Indenture
  governing the Notes qualified under the Trust Indenture Act of 1939,
 
    (2) the Exchange Offer, or the making of any exchange by a holder, does
  not violate applicable law or any applicable interpretation of the staff of
  the SEC,
                                       33
<PAGE>
 
    (3) no action or proceeding shall have been instituted or threatened in
  any court or by or before any governmental agency with respect to the
  Exchange Offer, which, in our judgment, might impair our ability to proceed
  with the Exchange Offer,
 
    (4) there shall not have been adopted or enacted any law, statute, rule
  or regulation which, in our judgment, would materially impair our ability
  to proceed with the Exchange Offer, or
 
    (5) there shall not have occurred any material change in the financial
  markets in the United States or any outbreak of hostilities or escalation
  thereof or other calamity or crisis the effect of which on the financial
  markets of the United States, in our judgment, would materially impair our
  ability to proceed with the Exchange Offer.
 
  If we determine in our sole discretion that any of the conditions to the
Exchange Offer are not satisfied, it may
 
    (1) refuse to accept any Original Notes and return all tendered Original
  Notes to the tendering holders,
 
    (2) extend its Exchange Offer and retain all Original Notes tendered
  prior to the Expiration Date, subject, however, to the rights of holders to
  withdraw such Original Notes (see "--Withdrawal of Tenders"), or
 
    (3) waive such unsatisfied conditions with respect to the Exchange Offer
  and accept all validly tendered Original Notes which have not been
  withdrawn.
 
  If such waiver constitutes a material change to the Exchange Offer, we will
promptly disclose such waiver by means of a prospectus supplement that will be
distributed to the registered holders, and will extend the Exchange Offer for a
period of five to 10 business days, depending upon the significance of the
waiver and the manner of disclosure to the registered holders, if the Exchange
Offer would otherwise expire during such five to 10 business day period.
 
Exchange Agent
 
  State Street Bank & Trust Company, the Trustee under the Indenture governing
the Notes, has been appointed as Exchange Agent for the Exchange Offer.
Questions and requests for assistance, requests for additional copies of this
Prospectus or of the Letter of Transmittal and requests for Notices of
Guaranteed Delivery and other documents should be directed to the Exchange
Agent addressed as follows:
 
                                    By Mail:
 
                       State Street Bank & Trust Company
                           Corporate Trust Department
                                  P.O. Box 778
                        Boston, Massachusetts 02102-0078
                            Attention:
 
                                 By Facsimile:
 
                                 (617) 664-5395
 
                             Confirm by Telephone:
                                 (617) 664-5587
 
                                    By Hand:
 
                       State Street Bank & Trust Company
                           Corporate Trust Department
                       Two International Place, 4th Floor
                          Boston, Massachusetts 02110
                             Attention:
 
                                       34
<PAGE>
 
Fees and Expenses
 
  We will bear the expenses of soliciting tenders. The principal solicitation
is being made by mail; however, additional solicitation may be made by
telegraph, telecopy, telephone or in person by officers and regular employees
of our company and its affiliates.
 
  No dealer-manager has been retained in connection with the Exchange Offer and
no payments will be made to brokers, dealers or others soliciting acceptance of
the Exchange Offer. However, reasonable and customary fees will be paid to the
Exchange Agent for its services and it will be reimbursed for its reasonable
out-of-pocket expenses in connection therewith.
 
  We estimate that our out of pocket expenses for the Exchange Offer will be
approximately $200,000. Such expenses include fees and expenses of the Exchange
Agent and the trustee under the Indenture, accounting and legal fees and
printing costs, among others.
 
  We will pay all transfer taxes, if any, applicable to the exchange of its
Original Notes pursuant to the Exchange Offer. If, however, a transfer tax is
imposed for any reason other than the exchange of its Original Notes pursuant
to the Exchange Offer, then the amount of any such transfer taxes (whether
imposed on the registered holder or any other persons) will be payable by the
tendering holder. If satisfactory evidence of payment of such taxes or
exemption therefrom is not submitted with the Letter of Transmittal, the amount
of such transfer taxes will be billed directly to such tendering holder.
 
Accounting Treatment
 
  The Exchange Notes will be recorded at the carrying value of the Original
Notes and no gain or loss for accounting purposes will be recognized. The
expenses of the Exchange Offer will be amortized over the term of the Exchange
Notes.
 
Resale of the Exchange Notes; Plan of Distribution
 
  Each broker-dealer that receives Exchange Notes for its own account pursuant
to the Exchange Offer must acknowledge that it will deliver a prospectus in
connection with any resale of such Exchange Notes. This prospectus, as it may
be amended or supplemented from time to time, may be used by a broker-dealer in
connection with resales of Exchange Notes received in exchange for Original
Notes where such Original Notes were acquired as a result of market-making
activities or other trading activities. We have agreed that, for a period of
180 days after the Expiration Date, we will make this prospectus, as amended or
supplemented, available to any broker-dealer for use in connection with any
such resale. In addition, until           , 1999 (90 days after the date of
this prospectus), all dealers effecting transactions in the Exchange Notes,
whether or not participating in this distribution, may be required to deliver a
prospectus. This requirement is in addition to the obligation of dealers to
deliver a prospectus when acting as underwriters and with respect to their
unsold allotments or subscriptions.
 
  We will not receive any proceeds from any sale of Exchange Notes by broker-
dealers. Exchange Notes received by broker-dealers for their own account
pursuant to the Exchange Offer may be sold from time to time in one or more
transactions
 
    (1) in the over-the-counter market,
 
                                       35
<PAGE>
 
    (2) in negotiated transactions,
 
    (3) through the writing of options on the Exchange Notes or a combination
  of such methods of resale,
 
    (4) at market prices prevailing at the time of resale,
 
    (5) at prices related to such prevailing market prices or
 
    (6) negotiated prices.
 
  Any such resale may be made directly to purchasers or to or through brokers
or dealers who may receive compensation in the form of commissions or
concessions from any such broker-dealer or the purchasers of any such Exchange
Notes.
 
  Any broker-dealer that resells Exchange Notes that were received by it for
its own account pursuant to the Exchange Offer and any broker or dealer that
participates in a distribution of such Exchange Notes may be deemed to be an
"underwriter" within the meaning of the Securities Act and any profit on any
such resale of Exchange Notes and any commission on concessions received by any
such persons may be deemed to be underwriting compensation under the Securities
Act. The Letter of Transmittal states that, by acknowledging that it will
deliver and by delivering a prospectus, a broker-dealer will not be deemed to
admit that it is an "underwriter" within the meaning of the Securities Act.
 
  For a period of 180 days after the Expiration Date, we will promptly send
additional copies of this prospectus and any amendment or supplement to this
prospectus to any broker-dealer that requests such documents in the Letter of
Transmittal. We have agreed to pay all expenses incident to the Exchange Offer
(including the expenses approved in writing of one counsel for the holders of
the Notes) other than commissions or concessions of any brokers or dealers and
will indemnify the holders of the Notes (including any broker-dealers) required
to use this prospectus in connection with their resale of Exchange Notes as
described above against certain liabilities, including liabilities under the
Securities Act.
 
                                       36
<PAGE>
 
                                USE OF PROCEEDS
 
  The Exchange Offer is intended to satisfy our material obligations under the
Registration Rights Agreement. We will not receive any cash proceeds from the
issuance of the Exchange Notes offered by this prospectus. In consideration for
issuing the Exchange Notes as contemplated in this prospectus, we will receive
in exchange Original Notes in like principal amount, the form and terms of
which are the same as the form and terms of the Exchange Notes, except as
otherwise described herein under "The Exchange Offer--Terms of the Exchange
Offer." The Original Notes surrendered in exchange for the Exchange Notes will
be retired and canceled and cannot be reissued. Accordingly, issuance of the
Exchange Notes will not result in any increase in our indebtedness.
 
                                       37
<PAGE>
 
                                 CAPITALIZATION
 
  The following table sets forth (1) our historical consolidated capitalization
as of December 31, 1998, (2) our pro forma consolidated capitalization as of
December 31, 1998, after giving effect to the acquisition of five companies
subsequent to December 31, 1998 and related financings and (3) our pro forma as
adjusted consolidated capitalization as of December 31, 1998, after giving
effect to the issuance of the Notes and the application of the net proceeds
therefrom to repay outstanding indebtedness. For a description of the pro forma
adjustments, see Notes to Unaudited Pro Forma Combined Financial Statements
incorporated by reference herein. This presentation should be read in
conjunction with our historical and unaudited pro forma combined financial
statements and related notes thereto incorporated by reference herein (in
thousands).
 
<TABLE>
<CAPTION>
                                                  As of December 31, 1998
                                           -------------------------------------
                                                                      Pro Forma
                                                       Pro Forma     as Adjusted
                                                    for Acquisitions   for the
                                                          and        issuance of
                                            Actual  Refinancings(2)   the Notes
                                           -------- ---------------- -----------
<S>                                        <C>      <C>              <C>
Short-term senior debt....................  $12,959     $    560      $    560
                                           ========     ========      ========
Long-term debt:
  Credit facility(1) .....................  195,000      262,019       158,909
  9 3/4% Notes due 2009...................       --           --       130,000
  Junior subordinated debt(1).............   16,000       17,613         1,613
                                           --------     --------      --------
    Total long-term debt..................  211,000      279,632       290,522
                                           --------     --------      --------
Shareholders' equity......................  315,929      345,940       345,940
                                           --------     --------      --------
    Total capitalization.................. $526,929     $625,572      $636,462
                                           ========     ========      ========
</TABLE>
- --------
(1)  After giving effect to the issuance of the Notes and the application of
     the net proceeds therefrom, we will have available, subject to the terms
     and conditions thereof, $70.6 million under our Credit Agreement. Upon
     issuance of the Notes, certain holders of junior subordinated notes had
     the right to require repayments of their notes in an aggregate amount of
     approximately $16.0 million. Such repayment was made with funds available
     under our Credit Agreement subsequent to December 31, 1998.
(2)  Gives effect to the acquisition of five acquisitions closed subsequent to
     December 31, 1998. See "Summary--Recent Developments." Also gives effect
     to the repayment of short-term senior debt that matured in January 1999
     with borrowings under the Credit Agreement.
 
                                       38
<PAGE>
 
                        DESCRIPTION OF CREDIT AGREEMENT
 
General
 
  The lenders under our Credit Agreement are committed to provide us, subject
to certain terms and conditions, the entire $230 million principal amount of
the revolving credit facility described below. The following description
summarizes the material provisions of the Credit Agreement. The following
description does not purport to be complete and is subject to, and is qualified
in its entirety by reference to, the provisions of the Credit Agreement a copy
of which is filed as an exhibit to the registration statement of which this
prospectus is a part.
 
Amortization; Prepayments
 
  Loans under the Credit Agreement may be prepaid at any time without premium
or penalty in reasonable minimum amounts. Prepayments of Eurodollar borrowings
on any day other than the last day of an interest period must be accompanied by
a payment to the lenders of various costs, expenses or losses, if any, incurred
as a result of such prepayment. Any loans under the Credit Agreement are
payable in full on October 13, 2001.
 
Security; Guarantees
 
  Borrowings under the Credit Agreement are guaranteed by our domestic
Subsidiaries (as defined in the Credit Agreement), including future domestic
Subsidiaries. Our obligations under the Credit Agreement and the obligations
under the guarantees are secured by a first priority lien on the accounts
receivable and inventory of the domestic Subsidiaries, and by a pledge of stock
of its domestic Subsidiaries.
 
Interest Rates
 
  Loans under the Credit Agreement bear interest at a rate per annum, at our
option, of either (1) the Alternate Base Rate which is equal to the greater of
the Federal Funds Effective Rate (as defined in the Credit Agreement) plus 0.5%
or the Prime Rate (as defined in the Credit Agreement) plus a margin depending
on the ratio of indebtedness for borrowed money to Adjusted EBITDA (as defined
in the Credit Agreement), or (2) the Eurodollar Rate (as defined in the Credit
Agreement) plus a margin depending on the ratio of indebtedness for borrowed
money to Adjusted EBITDA.
 
Fees, Expenses and Costs; Credit Facilities
 
  The terms of the Credit Agreement require us to pay the following fees in
connection with the maintenance of loans under the Credit Agreement: (1)
commitment fees to be paid to the Lenders in amounts between 0.25% and 0.375%
per annum with respect to the unused commitments under the Credit Agreement
depending on the ratio of indebtedness for borrowed money to Adjusted EBITDA,
payable quarterly in arrears until such time as such facility is terminated;
and (2) administration fees payable annually to the Agent. In addition, we paid
various underwriting and arrangement fees and closing costs in connection with
the origination and syndication of the Credit Agreement.
 
  We are required to reimburse the Agent for all reasonable out-of-pocket costs
and expenses incurred in the preparation, documentation and administration of
the Credit Agreement and to reimburse the Lenders for all reasonable costs and
expenses incurred in connection with the
 
                                       39
<PAGE>
 
enforcement of their rights in connection with a default or the enforcement of
the Credit Agreement. We must indemnify the Agent and the Lenders and their
respective officers, directors, shareholders, employees, agents and attorneys
against certain costs, expenses (including fees and reimbursements of counsel)
and liabilities arising out of or relating to the Credit Agreement and the
transactions contemplated thereby. The Lenders also are entitled to be
reimbursed for certain reserve requirements and increases therein, changes in
law and circumstances, taxes (other than on overall net income), capital
adequacy, and consequential costs. Further, the inability to determine
Eurodollar Rates or the possible future illegality of the Eurodollar Rate
option will result in such rate option being unavailable.
 
Covenants
 
  The Credit Agreement contains substantial restrictive covenants limiting our
ability and that of our subsidiaries to:
 
 . incur Indebtedness (as defined in the Credit Agreement), including
  contractual contingent obligations;
 
 . pay certain debt after default;
 
 . create or allow to exist liens or other encumbrances;
 
 . transfer assets except for sales and other transfers of inventory or surplus,
  immaterial or obsolete assets in the ordinary course of business;
 
 . enter into mergers, consolidations and asset dispositions of all or
  substantially all of its properties;
 
 . make investments;
 
 . extend credit to any entity;
 
 . sell, transfer or otherwise dispose of any class of stock or the voting
  rights of any subsidiary of GroupMAC;
 
 . enter into transactions with related parties other than on an arm's-length
  basis on terms no less favorable to us than those available from third
  parties;
 
 .  amend certain agreements;
 
 .  make any material change in the nature of the business conducted by
  GroupMAC;
 
 .  pay dividends or redeem shares of capital stock; and
 
 .  make capital expenditures.
 
  In addition, the Credit Agreement contains covenants that, among other things
and with certain exceptions, require us and our subsidiaries to:
 
 . maintain the existence, qualification and good standing of GroupMAC and its
  subsidiaries;
 
 . comply in all material respects with all material applicable laws;
 
 . maintain material properties, rights and franchises;
 
 . deliver certain financial and other information;
 
 . maintain specified insurance;
 
 . pay taxes; and
 
 . notify the Lenders of any default under the Loan Documents (as defined in the
  Credit Agreement) and of certain other material events.
 
                                       40
<PAGE>
 
  Under the Credit Agreement, we are required to satisfy certain financial
covenants and tests, including (1) a minimum fixed charge coverage ratio; (2) a
maximum ratio of total indebtedness for borrowed money to Capitalization (as
defined in the Credit Agreement); and (3) a minimum Consolidated Net Worth (as
defined in the Credit Agreement).
 
Events of Default
 
  Events of Default under the Credit Agreement include, subject to certain
applicable notice and grace periods, the following:
 
 . a default in the payment when due of any principal, interest, fees or other
  amount under the Credit Agreement;
 
 . a default by GroupMAC under any debt instrument in excess of $5,000,000, or
  the occurrence of any event or condition that enables the holder of such debt
  to accelerate the maturity thereof;
 
 . any material breach of any representation, warranty or statement in, or
  failure to perform any duty or covenant under the Credit Agreement or any of
  the Loan Documents;
 
 . commencement of voluntary or involuntary bankruptcy, insolvency or similar
  proceedings by or against GroupMAC or any Material Subsidiary;
 
 . any judgment or order in excess of $5,000,000 net of confirmed insurance
  remaining undischarged or unstayed for longer than certain periods; and
 
 . a Change of Control (as defined in the Credit Agreement).
 
                                       41
<PAGE>
 
                            DESCRIPTION OF THE NOTES
 
 
  The Notes are to be issued under an indenture (the "Indenture") among
GroupMAC, each of the GroupMAC's subsidiaries as of the date of the issuance
(the "Initial Guarantors") and State Street Bank and Trust Company, as trustee
(the "Trustee"). The Indenture will not be qualified under the Trust Indenture
Act of 1939, as amended (the "Trust Indenture Act"), except upon effectiveness
of a registration statement for the Exchange Offer. By its terms, however, the
Indenture will incorporate certain provisions of the Trust Indenture Act and,
upon consummation of the Exchange Offer, the Indenture will be subject to and
governed by the Trust Indenture Act. References to the Notes include the
Exchange Notes unless the context otherwise requires.
 
  The following summary of the material provisions of the Indenture and the
Notes does not purport to be complete and is subject to, and qualified in its
entirety by reference to, the provisions of the Indenture and the Notes,
including the definitions of certain terms contained therein and those terms
made part of the Indenture by reference to the Trust Indenture Act. The
definitions of certain capitalized terms used in the following summary are set
forth below under "--Certain Definitions."
 
General
 
  The Notes are unsecured senior subordinated obligations of GroupMAC limited
to $200 million aggregate principal amount, of which $130 million were issued
on the Issue Date, and are guaranteed by each of the Guarantors on a senior
subordinated basis as described below. The Notes will be issued only in
registered form without coupons, in denominations of $1,000 and integral
multiples thereof.
 
  Principal of, premium, if any, and interest on the Notes will be payable, and
the Notes will be transferable, at the corporate trust office or agency of the
Trustee in the City of New York maintained for such purposes. In addition,
interest may be paid at the option of GroupMAC by check mailed to the person
entitled thereto as shown on the security register. No service charge will be
made for any transfer, exchange or redemption of Notes, except in certain
circumstances for any tax or other governmental charge that may be imposed in
connection therewith.
 
Maturity, Interest and Principal
 
  The Notes mature on January 15, 2009. Interest on the Notes accrues at the
rate of 9 3/4% per annum and will be payable semi-annually in arrears on each
January 15 and July 15, commencing July 15, 1999, to the holders of record of
Notes at the close of business on the January 1 and July 1, respectively,
immediately preceding such interest payment date. Interest on the Notes will
accrue from the most recent date to which interest has been paid or, if no
interest has been paid, from January 22, 1999 (the "Issue Date"). Interest is
computed on the basis of a 360-day year comprised of twelve 30-day months.
 
  The Notes are expected to trade in the Same-Day Funds Settlement System of
The Depository Trust Company ("DTC") until maturity, and secondary market
trading activity for the Notes will therefore settle in same day funds.
 
Additional Interest
 
  Pursuant to the Registration Rights Agreement, GroupMAC agreed to file with
 
                                       42
<PAGE>
 
the Commission the Exchange Offer Registration Statement and to offer to the
holders of Notes who are able to make certain representations the opportunity
to exchange their Notes for Exchange Notes. In the event that GroupMAC is not
permitted to file the Exchange Offer Registration Statement or to consummate
the Exchange Offer because the Exchange Offer is not permitted by applicable
law or Commission policy or in certain other circumstances, including if for
any reason the Exchange Offer is not consummated within 180 days after the
Issue Date, GroupMAC will file with the Commission a Shelf Registration
Statement with respect to resales of the Notes by the holders thereof. The
interest rate on the Notes is subject to increase under certain circumstances
if GroupMAC is not in compliance with its obligations under the Registration
Rights Agreement.
 
Optional Redemption
 
  Optional Redemption. The Notes are redeemable at the option of GroupMAC, in
whole or in part, at any time on or after January 15, 2004, at the redemption
prices expressed as percentages of principal amount set forth below, plus
accrued and unpaid interest, if any, to the redemption date, if redeemed during
the 12-month period beginning January 15 of the years indicated below:
 
<TABLE>
<CAPTION>
                                   Redemption
 Yare                                Price
- ----                               ----------
  <S>                              <C>
  2004............................  104.875%
  2005............................  103.250%
  2006............................  101.625%
  2007 and thereafter.............  100.000%
</TABLE>
 
  In addition, at any time, or from time to time, on or prior to January 15,
2002, GroupMAC may, at its option, use the net cash proceeds of one or more
Equity Offerings (as defined below) to redeem up to an aggregate of 35% of the
principal amount of the Notes issued, at a redemption price equal to 109.75% of
the principal amount thereof plus accrued and unpaid interest, if any, thereon
to the redemption date. We may do this only if at least 65% of the issued
principal amount of Notes remains outstanding immediately after the occurrence
of such redemption. In order to effect this kind of redemption with the
proceeds of any Equity Offering, GroupMAC must send a redemption notice to the
Trustee not later than 90 days after the consummation of any such Equity
Offering.
 
  As used in the preceding paragraph, "Equity Offering" means a sale of Common
Stock of GroupMAC with net cash proceeds to GroupMAC of at least $25.0 million.
 
  Selection and Notice. In the event that less than all of the Notes are to be
redeemed at any time, selection of such Notes for redemption will be made by
the Trustee in compliance with the requirements of the principal national
securities exchange, if any, on which the Notes are listed or, if the Notes are
not then listed on a national securities exchange, on a pro rata basis, by lot
or by such method as the Trustee shall deem fair and appropriate subject to the
rules of DTC. If this happens, Notes will only be redeemable in principal
amounts of $1,000 or an integral multiple of $1,000. Notice of redemption will
be mailed by first-class mail at least 30 but not more than 60 days before the
redemption date to each holder of Notes to be redeemed at its registered
address. If any Note is to be redeemed in part only, the notice of redemption
that relates to such Note will state the portion of the principal amount
thereof to be redeemed. A new Note in a principal amount equal to the
unredeemed portion thereof will be
                                       43
<PAGE>
 
issued in the name of the holder thereof upon surrender for cancellation of the
original Note. On and after the redemption date, interest will cease to accrue
on Notes or portions thereof called for redemption, unless GroupMAC defaults in
the payment of the redemption price.
 
Sinking Fund
 
  The Notes are not entitled to the benefit of any mandatory sinking fund.
 
Voting
 
  The Indenture provides that the holders of the Notes and the Exchange Notes
will vote and consent together on all matters to which such holders are
entitled to vote or consent as one class and that none of the holders of the
Notes and the Exchange Notes will have the right to vote or consent as a
separate class on any matter to which such holders are entitled to vote or
consent.
 
Change of Control
 
  Upon the occurrence of a Change of Control, GroupMAC will be obligated to
make an offer to purchase (a "Change of Control Offer"), on a business day (the
"Change of Control Purchase Date") not more than 60 nor less than 30 days
following the occurrence of the Change of Control, all of the then outstanding
Notes tendered. GroupMAC must pay for these tendered Notes purchase price in
cash (the "Change of Control Purchase Price") equal to 101% of the principal
amount thereof plus accrued and unpaid interest, if any, thereon to the Change
of Control Purchase Date. GroupMAC will be required to purchase all Notes
tendered into the Change of Control Offer and not withdrawn. The Change of
Control Offer is required to remain open for at least 20 business days.
 
  In order to effect such Change of Control Offer, GroupMAC must, not later
than the 30th day after the Change of Control, mail to each holder of Notes
notice of the Change of Control Offer. This notice will govern the terms of the
Change of Control Offer and will state, among other things, the procedures that
holders of Notes must follow to accept the Change of Control Offer.
 
  If a Change of Control Offer is made, there can be no assurance that GroupMAC
will have available funds sufficient to pay the Change of Control Purchase
Price for all of the Notes that might be delivered by holders of Notes seeking
to accept the Change of Control Offer. In addition, there can be no assurance
that GroupMAC's debt instruments will permit such offer to be made.
 
  The New Credit Agreement does not permit GroupMAC to make a Change of Control
Offer and, in order to make such offer, GroupMAC would be required to pay off
the New Credit Agreement in full or seek a waiver from the lenders under the
New Credit Agreement to allow GroupMAC to make the Change of Control Offer. The
occurrence of a Change of Control is also an event of default under the New
Credit Agreement and would entitle the lenders thereunder to accelerate all
amounts owing under the New Credit Agreement. Failure to make a Change of
Control Offer, even if prohibited by GroupMAC's debt instruments, would
constitute a default under the Indenture. See "Risk Factors--Possible Inability
to Repurchase Notes upon a Change of Control."
 
  GroupMAC will not be required to make a Change of Control Offer upon a Change
of Control if a third party makes the Change of Control Offer in the manner, at
 
                                       44
<PAGE>
 
the times and otherwise in compliance with the requirements applicable to a
Change of Control Offer made by GroupMAC and purchases all Notes validly
tendered and not withdrawn under such Change of Control Offer.
 
  The provisions of the Indenture may not afford Noteholders protection in the
event of a highly leveraged transaction, reorganization, restructuring, merger
or similar transaction involving GroupMAC if such transaction is not a
transaction defined as a "Change of Control."
 
  The use of the term "all or substantially all" in provisions of the Indenture
such as clause (b) of the definition of "Change of Control" and under "--
Consolidation, Merger, Sale of Assets, Etc." has no clearly established meaning
under New York law, which governs the Indenture, and has been the subject of
limited judicial interpretation in only a few jurisdictions. Accordingly, there
may be a degree of uncertainty in ascertaining whether any particular
transaction would involve a disposition of "all or substantially all" of the
assets of a person, which uncertainty should be considered by prospective
purchasers of Notes.
 
  Management has no present intention to engage in a transaction involving a
Change of Control, although it is possible that GroupMAC would decide to do so
in the future. Subject to the limitations discussed below, GroupMAC could, in
the future, enter into certain transactions, including acquisitions,
refinancings or other recapitalizations, that would not constitute a Change of
Control under the Indenture, but that would increase the amount of indebtedness
outstanding at such time or otherwise affect GroupMAC's capital structure or
credit ratings. Restrictions on the ability of GroupMAC to incur additional
Indebtedness are contained in the covenant described under "Certain Covenants--
Limitation on Indebtedness." Such restrictions can only be waived with the
consent of the Holders of a majority in principal amount of the Notes then
outstanding. Except for the limitations contained in such covenant, however,
the Indenture does not contain any covenants or protections that may afford
Holders of the Notes protection in the event of a highly leveraged transaction.
 
  GroupMAC will comply with Rule 14e-1 under the Exchange Act and any other
securities laws and regulations thereunder, to the extent such laws or
regulations are applicable, in the event that a Change of Control occurs and
GroupMAC is required to purchase Notes as described above, and any violation of
the provisions of the Indenture relating to such Offer to Purchase occurring as
a result of such compliance shall not be deemed a Default or an Event of
Default.
 
Subordination
 
  The indebtedness evidenced by the Notes is subordinated in right of payment
to the prior payment in full in cash of all Senior Indebtedness, including
Indebtedness under the New Credit Agreement. The Notes are unsecured senior
subordinated indebtedness of GroupMAC ranking senior to all existing and future
Subordinated Indebtedness of GroupMAC.
 
  The Indenture provides that in the event of any insolvency or bankruptcy case
or proceeding, or any receivership, liquidation, reorganization or other
similar case or proceeding in connection therewith, relating to GroupMAC or its
assets, or any liquidation, dissolution or other winding-up of GroupMAC,
whether voluntary or
 
                                       45
<PAGE>
 
involuntary, or any assignment for the benefit of creditors or other
marshalling of assets or liabilities of GroupMAC, all Senior Indebtedness
(including, in the case of Designated Senior Indebtedness, any interest
accruing subsequent to the filing of a petition for bankruptcy regardless of
whether such interest is an allowed claim in the bankruptcy proceeding) must be
paid in full in cash before any payment is made on account of the principal of,
premium, if any, or interest on the Notes.
 
  During the continuance of any default in the payment of principal, premium,
if any, or interest on any Senior Indebtedness, when the same becomes due, and
after receipt by the Trustee and GroupMAC from representatives of holders of
such Senior Indebtedness of written notice of such default, no direct or
indirect payment (other than payments from trusts previously created pursuant
to the provisions described under "--Defeasance or Covenant Defeasance of
Indenture") by or on behalf of GroupMAC of any kind of character (excluding
certain permitted equity or subordinated securities) may be made on account of
the principal of, premium, if any, or interest on, or the purchase, redemption
or other acquisition of, the Notes unless and until such default has been cured
or waived or has ceased to exist or such Senior Indebtedness shall have been
discharged or paid in full in cash, after which GroupMAC shall resume making
any and all required payments in respect of the Notes, including any missed
payments.
 
  In addition, during the continuance of any other default with respect to any
Designated Senior Indebtedness that permits, or would permit with the passage
of time or the giving of notice or both, the maturity thereof to be accelerated
(a "Non-payment Default") and upon the earlier to occur of (a) receipt by the
Trustee and GroupMAC from the representatives of holders of such Designated
Senior Indebtedness of a written notice of such Non-payment Default or (b) if
such Non-payment Default results from the acceleration of the maturity of the
Notes, the date of such acceleration, no payment (other than payments from
trusts previously created pursuant to the provisions described under "--
Defeasance or Covenant Defeasance of Indenture") of any kind or character
(excluding certain permitted equity or subordinated securities) may be made by
GroupMAC on account of the principal of, premium, if any, or interest on, or
the purchase, redemption, or other acquisition of, the Notes for the period
specified below (the "Payment Blockage Period").
 
  The Payment Blockage Period shall commence upon the receipt of notice of a
Non-payment Default by the Trustee and GroupMAC from the representatives of
holders of Designated Senior Indebtedness or the date of the acceleration
referred to in clause (b) of the preceding paragraph, as the case may be, and
shall end on the earliest to occur of the following events:
 
  (1) 179 days have elapsed since the receipt of such notice or the date of the
acceleration referred to in clause (b) of the preceding paragraph (provided the
maturity of such Designated Senior Indebtedness shall not theretofore have been
accelerated),
 
  (2) such default is cured or waived or ceases to exist or such Designated
Senior Indebtedness is discharged or paid in full in cash, or
 
  (3) such Payment Blockage Period has been terminated by written notice to
GroupMAC or the Trustee from the representatives of holders of Designated
Senior Indebtedness initiating such Payment
 
                                       46
<PAGE>
 
Blockage Period, after which GroupMAC shall promptly resume making any and all
required payments in respect of the Notes, including any missed payments.
 
  Only one Payment Blockage Period with respect to the Notes may be commenced
within any 360 consecutive day period. No Non-payment Default with respect to
Designated Senior Indebtedness that existed or was continuing on the date of
the commencement of any Payment Blockage Period will be, or can be, made the
basis for the commencement of a second Payment Blockage Period, whether or not
within a period of 360 consecutive days, unless such default has been cured or
waived for a period of not less than 90 consecutive days. In no event will a
Payment Blockage Period extend beyond 179 days from the date of the receipt by
the Trustee of the notice or the date of the acceleration initiating such
Payment Blockage Period and there must be a 180 consecutive day period in any
360 day period during which no Payment Blockage Period is in effect.
 
  If GroupMAC fails to make any payment on the Notes when due on account of the
payment blockage provisions referred to above, such failure would constitute an
Event of Default under the Indenture and would enable the holders of the Notes
to accelerate the maturity thereof. See "--Events of Default."
 
  By reason of such subordination, in the event of liquidation or insolvency,
creditors of GroupMAC who are holders of Senior Indebtedness may recover more,
ratably, than the holders of the Notes, and funds which would be otherwise
payable to the holders of the Notes will be paid to the holders of Senior
Indebtedness to the extent necessary to pay the Senior Indebtedness in full,
and GroupMAC may be unable to meet its obligations fully with respect to the
Notes.
 
  On a pro forma basis after giving effect to the sale of the Notes and the
application of the net proceeds therefrom and the acquisitions that occurred
subsequent to December 31, 1998, GroupMAC and the Guarantors would have had,
without duplication, $159.5 million of Senior Indebtedness outstanding as of
December 31, 1998, and GroupMAC would have had $70.6 million of borrowing
capacity available under the New Credit Agreement. The Indenture limits, but
not prohibits, the incurrence by GroupMAC of additional Indebtedness which is
senior to the Notes and prohibits the incurrence by GroupMAC of Indebtedness
which is subordinated in right of payment to any other Indebtedness of GroupMAC
and senior in right of payment to the Notes.
 
  "Designated Senior Indebtedness" means (1) all Indebtedness under the New
Credit Agreement and (2) any other issue of Senior Indebtedness which (a) at
the time of the determination is equal to or greater than $25 million in
aggregate principal amount and (b) is specifically designated by GroupMAC in
the instrument evidencing such Senior Indebtedness as "Designated Senior
Indebtedness."
 
  "Senior Indebtedness" means the principal of, premium, if any, and interest
on any Indebtedness of GroupMAC, whether outstanding on the Issue Date or
thereafter created, incurred or assumed, unless, in the case of any particular
Indebtedness, the instrument creating or evidencing the same or pursuant to
which the same is outstanding expressly provides that such Indebtedness shall
not be senior in right of payment to the Notes. Without limiting the generality
of the foregoing, (x) "Senior Indebtedness" shall include the principal of,
premium, if any,
 
                                       47
<PAGE>
 
and interest on all obligations of every nature of GroupMAC from time to time
owed to the lenders under the New Credit Agreement, including, without
limitation, principal of and interest on, and all fees, indemnities and
expenses payable under, the New Credit Agreement, and (y) in the case of
Designated Senior Indebtedness, "Senior Indebtedness" shall include interest
accruing thereon subsequent to the occurrence of any Event of Default specified
in clause (7) or (8) under "--Events of Default" relating to GroupMAC, whether
or not the claim for such interest is allowed under any applicable Bankruptcy
Code.
 
  Notwithstanding the foregoing, "Senior Indebtedness" shall not include
 
  (a) Indebtedness evidenced by the Notes,
 
  (b) Indebtedness that is expressly subordinate or junior in right of payment
to any Indebtedness of GroupMAC,
 
  (c) Indebtedness which, when incurred and without respect to any election
under Section 1111(b) of Title 11, United States Code, is without recourse to
GroupMAC,
 
  (d) Indebtedness which is represented by Redeemable Capital Stock,
 
  (e) Indebtedness for goods, materials or services purchased in the ordinary
course of business or Indebtedness consisting of trade payables or other
current liabilities (other than any current liabilities owing under the New
Credit Agreement, or the current portion of any long-term Indebtedness which
would constitute Senior Indebtedness but for the operation of this clause (e)),
 
  (f) Indebtedness of or amounts owed by GroupMAC for compensation to employees
or for services rendered to GroupMAC,
 
  (g) any liability for federal, state, local or other taxes owed or owing by
GroupMAC,
 
  (h) Indebtedness of GroupMAC to a Subsidiary of GroupMAC or any other
Affiliate of GroupMAC or any of such Affiliate's Subsidiaries,
 
  (i) that portion of any Indebtedness which is incurred by GroupMAC in
violation of the Indenture,
 
  (j) Indebtedness of GroupMAC that by operation of law is subordinate to any
general unsecured obligations of GroupMAC, and
 
  (k) amounts owing under leases.
 
Guarantees
 
  Each Initial Guarantor and each future subsidiary of GroupMAC that is not an
Unrestricted Subsidiary (collectively, the "Guarantors") will fully and
unconditionally guarantee, on a senior subordinated basis, jointly and
severally, to each holder of Notes and the Trustee, the full and prompt
performance of GroupMAC's obligations under the Indenture and the Notes,
including the payment of principal of and interest on the Notes. The Guarantees
will be subordinated to Guarantor Senior Indebtedness on the same basis as the
Notes are subordinated to Senior Indebtedness.
 
  The obligations of each Guarantor are limited to the maximum amount which,
after giving effect to all other contingent and fixed liabilities of such
Guarantor and after giving effect to any collections from or payments made by
or on behalf of any other Guarantor in respect of the obligations of such other
Guarantor under its Guarantee or pursuant to its contribution obligations under
the Indenture, will result in the obligations of such Guarantor under the
Guarantee not constituting a fraudulent conveyance or fraudulent transfer under
federal or state law. See "Risk Factors--Fraudulent Transfer Considerations."
 
                                       48
<PAGE>
 
  Each Guarantor that makes a payment or distribution under a Guarantee shall
be entitled to a contribution from each other Guarantor in an amount pro rata,
based on the net assets of each Guarantor, determined in accordance with GAAP.
 
  Each Guarantor may consolidate with or merge into or sell its assets to
GroupMAC or another Guarantor without limitation, or with other persons upon
the terms and conditions set forth in the Indenture. See "--Consolidation,
Merger, Sale of Assets, Etc." In the event all or substantially all of the
assets or the capital stock of a Guarantor is sold and the sale complies with
the provisions set forth in "--Certain Covenants-- Disposition of Proceeds of
Asset Sales," the Guarantor's Guarantee will be automatically and
unconditionally discharged and released.
 
  "Guarantor Senior Indebtedness" of a Guarantor means the principal of,
premium, if any, and interest on any Indebtedness of such Guarantor, whether
outstanding on the Issue Date or thereafter created, incurred or assumed,
unless, in the case of any particular Indebtedness, the instrument creating or
evidencing the same or pursuant to which the same is outstanding expressly
provides that such Indebtedness shall not be senior in right of payment to such
Guarantor's Guarantee. Without limiting the generality of the foregoing, (x)
"Guarantor Senior Indebtedness" shall include the principal of, premium, if
any, and interest on all obligations of every nature of such Guarantor from
time to time owed to the lenders under the New Credit Agreement, including,
without limitation, principal of and interest on, and all fees, indemnities and
expenses payable under, the New Credit Agreement, and (y) in the case of
amounts owing under the New Credit Agreement and guarantees of Designated
Senior Indebtedness, "Guarantor Senior Indebtedness" shall include interest
accruing thereon subsequent to the occurrence of any Event of Default specified
in clause (7) or (8) under "--Events of Default" relating to such Guarantor,
whether or not the claim for such interest is allowed under any applicable
Bankruptcy Code.
 
  Notwithstanding the foregoing, "Guarantor Senior Indebtedness" shall not
include
 
  (a) Indebtedness evidenced by the Notes or the Guarantees,
 
  (b) Indebtedness that is expressly subordinate or junior in right of payment
to any Indebtedness of such Guarantor,
 
  (c) Indebtedness which, when incurred and without respect to any election
under Section 1111(b) of Title 11, United States Code, is without recourse to
such Guarantor,
 
  (d) Indebtedness which is represented by Redeemable Capital Stock,
 
  (e) Indebtedness for goods, materials or services purchased in the ordinary
course of business or Indebtedness consisting of trade payables or other
current liabilities (other than any current liabilities owing under the New
Credit Agreement, or the current portion of any long-term Indebtedness which
would constitute Guarantor Senior Indebtedness but for the operation of this
clause (e)),
 
  (f) Indebtedness of or amounts owed by such Guarantor for compensation to
employees or for services rendered to such Guarantor,
 
  (g) any liability for federal, state, local or other taxes owed or owing by
such Guarantor,
 
  (h) Indebtedness of such Guarantor to GroupMAC or a Subsidiary of GroupMAC or
any other Affiliate of GroupMAC or any of such Affiliate's Subsidiaries,
 
                                       49
<PAGE>
 
  (i) that portion of any Indebtedness which is incurred by such Guarantor in
violation of the Indenture,
 
  (j) Indebtedness of such Guarantor that by operation of law is subordinate to
any general unsecured obligations of such Guarantor, and
 
  (k) amounts owing under leases.
 
  Separate financial statements of the Guarantors are not included herein
because such Guarantors are jointly and severally liable with respect to
GroupMAC's obligations pursuant to the Notes, and the
aggregate net assets, earnings and equity of the Guarantors and GroupMAC are
substantially equivalent to the net assets, earnings and equity of GroupMAC on
a consolidated basis.
 
Certain Covenants
 
  The Indenture contains the following covenants, among others:
 
  Limitation on Indebtedness. GroupMAC will not, and will not permit any of its
Restricted Subsidiaries to, directly or indirectly, create, incur, issue,
assume, guarantee or in any manner become directly or indirectly liable,
contingently or otherwise (in each case, to "incur"), for the payment of any
Indebtedness (including any Acquired Indebtedness) other than Permitted
Indebtedness; provided, however, that (a) GroupMAC and any Guarantor will be
permitted to incur Indebtedness (including Acquired Indebtedness), and (b) a
Restricted Subsidiary will be permitted to incur Acquired Indebtedness, if in
each case, after giving pro forma effect to (1) the incurrence of such
Indebtedness and (if applicable) the application of the net proceeds therefrom,
including to refinance other Indebtedness, as if such Indebtedness were
incurred at the beginning of the four full fiscal quarters immediately
preceding such incurrence, taken as one period; (2) the incurrence, repayment
or retirement of any other Indebtedness or any obligations giving rise to
Consolidated Rental Payments by GroupMAC and its Restricted Subsidiaries since
the first day of such four-quarter period as if such Indebtedness or
obligations were incurred, repaid or retired at the beginning of such four-
quarter period (except that, in making such computation, the amount of
Indebtedness under any revolving credit facility shall be computed based upon
the average daily balance of such Indebtedness during such four-quarter
period); and (3) any Asset Sale or Asset Acquisition occurring since the first
day of such four-quarter period (including to the date of calculation) as if
such acquisition or disposition occurred at the beginning of such four-quarter
period, the Consolidated Fixed Charge Coverage Ratio of GroupMAC is at least
2:1.
 
  Limitation on Restricted Payments. GroupMAC will not, and will not permit any
of its Restricted Subsidiaries to, directly or indirectly:
 
    (a) declare or pay any dividend or make any other distribution or payment
  on or in respect of Capital Stock of GroupMAC or any of its Restricted
  Subsidiaries or make any payment to the direct or indirect holders (in
  their capacities as such) of Capital Stock of GroupMAC or any of its
  Restricted Subsidiaries (other than dividends or distributions payable
  solely in Capital Stock of GroupMAC (other than Redeemable Capital Stock)
  or in options, warrants or other rights to purchase Capital Stock of
  GroupMAC (other than Redeemable Capital Stock)) (other than the declaration
  or payment of dividends or other distributions to the extent declared or
  paid to GroupMAC or any Restricted Subsidiary),
                                       50
<PAGE>
 
    (b) purchase, redeem or otherwise acquire or retire for value any Capital
  Stock of GroupMAC or any of its Restricted Subsidiaries or any options,
  warrants or other rights to purchase any such Capital Stock (other than any
  such securities owned by GroupMAC or a Restricted Subsidiary),
 
     (c) make any principal payment on, or purchase, defease, repurchase,
   redeem or otherwise acquire or retire for value, prior to any scheduled
   maturity, scheduled repayment, scheduled sinking fund payment or other
   Stated Maturity, any Subordinated Indebtedness outstanding on the Issue
   Date (other than any such Subordinated Indebtedness owned by GroupMAC or a
   Restricted Subsidiary), or
 
     (d) make any Investment (other than any Permitted Investment) in any
   person
 
(such payments or Investments described in the preceding clauses (a), (b), (c)
and (d) are collectively referred to as "Restricted Payments"), unless, after
giving effect to the proposed Restricted Payment (the amount of any such
Restricted Payment, if other than cash, shall be the Fair Market Value of the
asset(s) proposed to be transferred by GroupMAC or such Restricted Subsidiary,
as the case may be, pursuant to such Restricted Payment), (A) no Default or
Event of Default shall have occurred and be continuing, (B) immediately after
giving effect to such Restricted Payment, GroupMAC would be able to incur
$1.00 of additional Indebtedness (other than Permitted Indebtedness) and (C)
the aggregate amount of all Restricted Payments declared or made from and
after the Issue Date would not exceed the sum of:
 
     (1) 50% of the aggregate Consolidated Net Income of GroupMAC accrued on a
   cumulative basis during the period beginning on the Issue Date and ending
   on the last day of the fiscal quarter of GroupMAC ending immediately prior
   to the date of such proposed Restricted Payment (or, if such aggregate
   cumulative Consolidated Net Income of GroupMAC for such period shall be a
   loss, minus 100% of such loss);
 
     (2) the aggregate net cash proceeds received by GroupMAC as capital
   contributions to GroupMAC after the Issue Date and which constitute
   shareholders' equity of GroupMAC in accordance with GAAP;
 
     (3) the aggregate net cash proceeds received by GroupMAC from the
   issuance or sale of Capital Stock (excluding Redeemable Capital Stock) of
   GroupMAC to any person (other than to a Subsidiary of GroupMAC) after the
   Issue Date;
 
     (4) the aggregate net cash proceeds received by GroupMAC from any person
   (other than a Subsidiary of GroupMAC) upon the exercise of any options,
   warrants or rights to purchase shares of Capital Stock (other than
   Redeemable Capital Stock) of GroupMAC after the Issue Date;
 
     (5) the aggregate net cash proceeds received after the Issue Date by
   GroupMAC from any person (other than a Subsidiary of GroupMAC) for debt
   securities that have been converted into or exchanged for Capital Stock of
   GroupMAC (other than Redeemable Capital Stock) (to the extent such debt
   securities were originally sold for cash) plus the aggregate amount of cash
   received by GroupMAC (other than from a Subsidiary of GroupMAC) in
                                      51
<PAGE>
 
   connection with such conversion or exchange;
 
     (6) in the case of the disposition or repayment of any Investment
   constituting a Restricted Payment after the Issue Date, an amount equal to
   the lesser of the return of capital with respect to such Investment and the
   initial amount of such Investment, in either case, less the cost of the
   disposition of such Investment; and
 
     (7) so long as the Designation thereof was treated as a Restricted Payment
   made after the Issue Date, with respect to any Unrestricted Subsidiary that
   has been redesignated as a Restricted Subsidiary after the Issue Date in
   accordance with "--Limitation on Designations of Unrestricted Subsidiaries"
   below, the Fair Market Value of GroupMAC's interest in such Subsidiary at
   the time of such redesignation; provided that such amount shall not in any
   case exceed the Designation Amount with respect to such Restricted
   Subsidiary upon its Designation, minus the Designation Amount (measured as
   of the date of Designation) with respect to any Restricted Subsidiary of
   GroupMAC which has been designated as an Unrestricted Subsidiary after the
   Issue Date in accordance with "--Limitations on Designations of Unrestricted
   Subsidiaries" below.
 
  For purposes of the preceding clause (C)(4), the value of the aggregate net
proceeds received by GroupMAC upon the issuance of Capital Stock upon the
exercise of options, warrants or rights will be the net cash proceeds received
upon the issuance of such options, warrants or rights plus the incremental
amount received by GroupMAC upon the exercise thereof.
 
  None of the foregoing provisions will prohibit, so long, in the case of
clauses (2), (3), (6) and (7) below, as there is no Default or Event of Default
continuing,
 
    (1) the payment of any dividend or distribution within 60 days after the
  date of its declaration, if at the date of declaration such payment would
  be permitted by the first paragraph of this covenant;
 
    (2) the redemption, repurchase or other acquisition or retirement of any
  shares of any class of Capital Stock of GroupMAC in exchange for, or out of
  the net cash proceeds of a substantially concurrent issue and sale of,
  other shares of Capital Stock of GroupMAC (other than Redeemable Capital
  Stock) to any person (other than to a Subsidiary of GroupMAC); provided,
  however, that such net cash proceeds are excluded from clause (C) of the
  first paragraph of this covenant;
 
    (3) any redemption, repurchase or other acquisition or retirement of
  Subordinated Indebtedness in exchange for, or out of the net cash proceeds
  of a substantially concurrent issue and sale of, (a) Capital Stock (other
  than Redeemable Capital Stock) of GroupMAC to any person (other than to a
  Subsidiary of GroupMAC); provided, however, that any such net cash proceeds
  are excluded from clause (C) of the first paragraph of this covenant; or
  (b) Indebtedness of GroupMAC so long as such Indebtedness is Subordinated
  Indebtedness which (i) has no scheduled principal payment prior to the 91st
  day after the Maturity Date, (ii) has an Average Life to Stated Maturity
  greater than the remaining Average Life to Stated Maturity of the Notes and
  (iii) is
 
                                       52
<PAGE>
 
  subordinated to the Notes in the same manner and to the same extent as the
  Subordinated Indebtedness so purchased, exchanged, redeemed, acquired or
  retired;
 
    (4) Investments constituting Restricted Payments made as a result of the
  receipt of non-cash consideration from any Asset Sale or other sale of
  assets or property made pursuant to and in compliance with the Indenture;
 
    (5) payments to purchase Capital Stock of GroupMAC from management or
  employees of GroupMAC or any of its Subsidiaries, or their authorized
  representatives, upon the death, disability or termination of employment of
  such employees, in aggregate amounts under this clause (5) not to exceed $1
  million in any fiscal year of GroupMAC;
 
    (6) the payment of any dividend or distribution by a Restricted
  Subsidiary to the holders of its Capital Stock on a pro rata basis; and
 
    (7) payments to purchase Capital Stock of GroupMAC in the aggregate
  amount under this clause (7) not to exceed $5 million from the Issue Date.
  Any payments made pursuant to clause (1) or (5) of this paragraph shall be
  taken into account in calculating the amount of Restricted Payments made
  from and after the Issue Date.
 
  Limitation on Liens. GroupMAC will not, and will not permit any of its
Restricted Subsidiaries to, create, incur, assume or suffer to exist any Liens
of any kind securing Indebtedness upon any of its property or assets, or any
proceeds therefrom, unless the Notes are equally and ratably secured (except
that Liens securing Subordinated Indebtedness shall be expressly subordinate to
Liens securing the Notes to the same extent such Subordinated Indebtedness is
subordinate to the Notes), except for (a) Liens securing Senior Indebtedness
and Guarantor Senior Indebtedness; (b) Liens securing the Notes; (c) Liens
securing Indebtedness which is incurred to refinance Indebtedness which has
been secured by a Lien (other than a Lien in favor of GroupMAC or a Restricted
Subsidiary) permitted under the Indenture and which has been incurred in
accordance with the provisions of the Indenture; provided, however, that such
Liens do not extend to or cover any property or assets of GroupMAC or any of
its Restricted Subsidiaries not securing the Indebtedness so refinanced; and
(d) Permitted Liens.
 
  Disposition of Proceeds of Asset Sales. GroupMAC will not, and will not
permit any of its Restricted Subsidiaries to, make any Asset Sale unless (a)
GroupMAC or such Restricted Subsidiary, as the case may be, receives
consideration at the time of such Asset Sale at least equal to the Fair Market
Value of the shares or assets sold or otherwise disposed of and (b) at least
75% of such consideration consists of cash or Cash Equivalents or Replacement
Assets; provided, however, that the amount of any Indebtedness (as shown on the
most recent balance sheet of GroupMAC or such Restricted Subsidiary) of
GroupMAC or such Restricted Subsidiary that is assumed by the transferee of
such assets and any securities, notes or other obligations received by GroupMAC
or such Restricted Subsidiary from such transferee that are converted within 30
days into cash or Cash Equivalents (to the extent of the cash or Cash
Equivalents received) shall be deemed to be cash for the purposes of this
provision; and provided, further, that the 75% limitation referred to in clause
(b) will not apply to any Asset Sale in which the cash or Cash
 
                                       53
<PAGE>
 
Equivalent portion of the consideration received therefrom determined in
accordance with the foregoing provision is equal to or greater than what the
after tax proceeds would have been had such Asset Sale complied with the
aforementioned 75% limitation. To the extent that the Net Cash Proceeds, or
portion thereof, of any Asset Sale are not applied to repay, and permanently
reduce the commitments under Senior Indebtedness, Guarantor Senior Indebtedness
or Indebtedness of a Foreign Restricted Subsidiary which is not a Guarantor,
GroupMAC or such Restricted Subsidiary, as the case may be, may apply the Net
Cash Proceeds from such Asset Sale, within 360 days of such Asset Sale, to an
investment in properties and assets that replace the properties and assets that
were the subject of such Asset Sale or in properties and assets that (as
determined in good faith by the Board of Directors of GroupMAC or the
Restricted Subsidiary, as the case may be) are used or useful in the business
of GroupMAC and its Restricted Subsidiaries conducted at such time or in
businesses reasonably related thereto or in Capital Stock of a person, the
principal portion of whose assets consist of such property or assets
("Replacement Assets"). Any Net Cash Proceeds or portion thereof from any Asset
Sale that are neither used to repay, and permanently reduce the commitments
under, Senior Indebtedness, Guarantor Senior Indebtedness or Indebtedness of a
Foreign Restricted Subsidiary which is not a Guarantor nor invested in
Replacement Assets within such 360-day period constitute "Excess Proceeds"
subject to disposition as provided below.
 
  When the aggregate amount of Excess Proceeds equals or exceeds $10 million,
GroupMAC shall make an offer to purchase (an "Asset Sale Offer"), from all
holders of the Notes, an aggregate principal amount of Notes equal to such
Excess Proceeds, at a price in cash equal to 100% of the outstanding principal
amount thereof plus accrued and unpaid interest, if any, to the purchase date
(the "Asset Sale Offer Price"). To the extent that the aggregate principal
amount of Notes tendered pursuant to an Asset Sale Offer is less than the
Excess Proceeds, GroupMAC may use such deficiency for general corporate
purposes. The Notes shall be purchased by GroupMAC, at the option of the holder
thereof, in whole or in part in integral multiples of $1,000, on a date that is
not earlier than 30 days and not later than 60 days from the date the notice is
given to holders, or such later date as may be necessary for GroupMAC to comply
with the requirements under the Exchange Act. If the aggregate principal amount
of Notes validly tendered and not withdrawn by holders thereof exceeds the
Excess Proceeds, Notes to be purchased will be selected on a pro rata basis.
Upon completion of such Asset Sale Offer, the amount of Excess Proceeds shall
be reset to zero.
 
  GroupMAC will comply with Rule 14e-11 under the Exchange Act and any other
securities laws and regulations thereunder, to the extent such laws and
regulations are applicable, in the event that an Asset Sale occurs and GroupMAC
is required to purchase Notes as described above, and any violation of the
provisions of the Indenture relating to such Offer to Purchase occurring as a
result of such compliance shall not be deemed a Default or an Event of Default.
 
  Limitation on Issuance of Preferred Stock of Restricted Subsidiaries.
GroupMAC will not permit any Restricted Subsidiary to issue any Preferred Stock
other
 
                                       54
<PAGE>
 
than Preferred Stock issued to GroupMAC or a Wholly-Owned Restricted
Subsidiary. GroupMAC will not sell, transfer or otherwise dispose of Preferred
Stock issued by a Restricted Subsidiary of GroupMAC or permit a Restricted
Subsidiary to sell, transfer or otherwise dispose of Preferred Stock issued by
a Restricted Subsidiary, other than to GroupMAC or a Wholly-Owned Restricted
Subsidiary. Notwithstanding the foregoing, nothing in such covenant will
prohibit Preferred Stock (other than Redeemable Capital Stock) issued by a
person prior to the time (A) such person becomes a Restricted Subsidiary of
GroupMAC, (B) such person merges with or into a Restricted Subsidiary of
GroupMAC or (C) a Restricted Subsidiary of GroupMAC merges with or into such
person; provided that such Preferred Stock was not issued or incurred by such
person in anticipation of a transaction contemplated by subclause (A), (B), or
(C) above.
 
  Limitation on Transactions with Affiliates. GroupMAC will not, and will not
permit any of its Restricted Subsidiaries to, directly or indirectly, enter
into any transaction or series of related transactions (including, without
limitation, the sale, transfer, disposition, purchase, exchange or lease of
assets, property or services) with, or for the benefit of, any of its
Affiliates (other than Restricted Subsidiaries), except (a) on terms that are
no less favorable to GroupMAC or such Restricted Subsidiary, as the case may
be, than those which could have been obtained at the time in a comparable
transaction or series of related transactions from persons who are not
Affiliates of GroupMAC, (b) with respect to a transaction or series of related
transactions involving aggregate payments or value equal to or greater than $2
million, GroupMAC shall have delivered an officer's certificate to the Trustee
certifying that such transaction or transactions comply with the preceding
clause (a), and (c) with respect to a transaction or series of related
transactions involving aggregate payments or value equal to or greater than $5
million, such transaction or transactions shall have been approved by a
majority of the disinterested members of the Board of Directors of GroupMAC.
 
  Notwithstanding the foregoing, the restrictions set forth in this covenant
shall not apply to
 
    (1) transactions with or among GroupMAC and the Restricted Subsidiaries,
 
    (2) customary directors' fees, indemnification and similar arrangements,
  consulting fees, employee salaries, bonuses or employment agreements,
  compensation or employee benefit arrangements and incentive arrangements
  with any officer, director or employee of GroupMAC or any Restricted
  Subsidiary entered into in the ordinary course of business,
 
    (3) any dividends made in compliance with "--Limitation on Restricted
  Payments" above,
 
    (4) loans and advances to officers, directors and employees of GroupMAC
  or any Restricted Subsidiary made in the ordinary course of business,
 
    (5) the incurrence of intercompany Indebtedness which constitutes
  Permitted Indebtedness and
 
    (6) transactions pursuant to agreements in effect on the Issue Date.
 
                                       55
<PAGE>
 
  Limitation on Dividends and Other Payment Restrictions Affecting Restricted
Subsidiaries. GroupMAC will not, and will not permit any of its Restricted
Subsidiaries to, directly or indirectly, create or otherwise cause or suffer to
exist or become effective any consensual encumbrance or restriction on the
ability of any Restricted Subsidiary of GroupMAC to
 
    (a) pay dividends, in cash or otherwise, or make any other distributions
  on or in respect of its Capital Stock or any other interest or
  participation in, or measured by, its profits,
 
    (b) pay any Indebtedness owed to GroupMAC or any other Restricted
  Subsidiary of GroupMAC,
 
    (c) make loans or advances to GroupMAC or any other Restricted Subsidiary
  of GroupMAC,
 
    (d) transfer any of its properties or assets to GroupMAC or any other
  Restricted Subsidiary of GroupMAC or
 
    (e) guarantee any Indebtedness of GroupMAC or any other Restricted
  Subsidiary of GroupMAC, except for such encumbrances or restrictions
  existing under or by reason of
 
      (1) applicable law or any applicable rule, regulation or order,
 
      (2) customary nonassignment provisions of any contract or any lease
    governing a leasehold interest of GroupMAC or any Restricted Subsidiary
    of GroupMAC,
 
      (3) customary restrictions on transfers of property subject to a Lien
    permitted under the Indenture,
 
      (4) the New Credit Agreement as in effect on the Issue Date,
 
      (5) any agreement or other instrument of a person acquired by GroupMAC
    or any Restricted Subsidiary of GroupMAC in existence at the time of
    such acquisition (but not created in contemplation thereof), which
    encumbrance or restriction is not applicable to any person, or the
    properties or assets of any person, other than the person, or the
    property or assets of the person, so acquired,
 
      (6) an agreement entered into for the sale or disposition of Capital
    Stock or assets of a Restricted Subsidiary or an agreement entered into
    for the sale of specified assets (in either case, so long as such
    encumbrance or restriction, by its terms, terminates on the earlier of
    the termination of such agreement or the consummation of such agreement
    and so long as such restriction applies only to the Capital Stock or
    assets to be sold),
 
      (7) any agreement in effect on the Issue Date,
 
      (8) the Indenture and the Guarantees, and
 
      (9) any agreement that amends, extends, refinances, renews or replaces
    any agreement described in the foregoing clauses; provided that the
    terms and conditions of any such agreement are not materially less
    favorable to the holders of the Notes with respect to such dividend and
    payment restrictions than those under or pursuant to the agreement
 
                                       56
<PAGE>
 
    amended, extended, refinanced, renewed or replaced.
 
  Limitation on Designations of Unrestricted Subsidiaries. GroupMAC may
designate after the Issue Date any Restricted Subsidiary as an "Unrestricted
Subsidiary" under the Indenture (a "Designation") only if:
 
    (1) no Default shall have occurred and be continuing at the time of or
  after giving effect to such Designation;
 
 
    (2) GroupMAC would be permitted to make an Investment (other than a
  Permitted Investment, except a Permitted Investment covered by clause (x)
  of the definition thereof) at the time of Designation (assuming the
  effectiveness of such Designation) pursuant to the first paragraph of "--
  Limitation on Restricted Payments" above in an amount (the "Designation
  Amount") equal to the Fair Market Value of GroupMAC's interest in such
  Subsidiary on such date; and
 
    (3) GroupMAC would be permitted under the Indenture to incur $1.00 of
  additional Indebtedness (other than Permitted Indebtedness) pursuant to the
  covenant described under "--Limitation on Indebtedness" at the time of such
  Designation (assuming the effectiveness of such Designation).
 
  In the event of any such Designation, GroupMAC shall be deemed to have made
an Investment constituting a Restricted Payment pursuant to the covenant "--
Limitation on Restricted Payments" for all purposes of the Indenture in the
Designation Amount.
 
  GroupMAC shall not, and shall not cause or permit any Restricted Subsidiary
to, at any time (x) provide credit support for or subject any of its property
or assets (other than the Capital Stock of any Unrestricted Subsidiary) to the
satisfaction of, any Indebtedness of any Unrestricted Subsidiary (including any
undertaking, agreement or instrument evidencing such Indebtedness), (y) be
directly or indirectly liable for any Indebtedness of any Unrestricted
Subsidiary or (z) be directly or indirectly liable for any Indebtedness which
provides that the holder thereof may (upon notice, lapse of time or both)
declare a default thereon or cause the payment thereof to be accelerated or
payable prior to its final scheduled maturity upon the occurrence of a default
with respect to any Indebtedness of any Unrestricted Subsidiary (including any
right to take enforcement action against such Unrestricted Subsidiary), except
any non-recourse guarantee given solely to support the pledge by GroupMAC or
any Restricted Subsidiary of the Capital Stock of an Unrestricted Subsidiary.
All Subsidiaries of Unrestricted Subsidiaries shall automatically be deemed to
be Unrestricted Subsidiaries.
 
  GroupMAC may revoke any Designation of a Subsidiary as an Unrestricted
Subsidiary (a "Revocation") if:
 
    (1) no Default shall have occurred and be continuing at the time of and
  after giving effect to such Revocation; and
 
    (2) all Liens and Indebtedness of such Unrestricted Subsidiary
  outstanding immediately following such Revocation would, if incurred at
  such time, have been permitted to be incurred for all purposes of the
  Indenture.
 
  All Designations and Revocations must be evidenced by an Officers'
Certificate delivered to the Trustee certifying compliance with the foregoing
provisions.
 
                                       57
<PAGE>
 
  Limitation on the Issuance of Subordinated Indebtedness. GroupMAC will not,
and will not permit any Guarantor to, directly or indirectly, incur any
Indebtedness (including Acquired Indebtedness) that is subordinate in right of
payment to any Indebtedness of GroupMAC or such Guarantor and senior in right
of payment to the Notes or the Guarantee of such Guarantor, as the case may be;
provided, however, that GroupMAC and the Guarantors may incur such Acquired
Indebtedness in an aggregate amount not to exceed $25.0 million at any one time
outstanding.
 
  Additional Subsidiary Guarantees. If GroupMAC or any of its Restricted
Subsidiaries acquires, creates or designates another Restricted Subsidiary
organized under the laws of the United States or any possession or territory
thereof, any State of the United States or the District of Columbia, then such
newly acquired, created or designated Restricted Subsidiary shall, within 30
days after the date of its acquisition, creation or designation, whichever is
later, execute and deliver to the Trustee a supplemental indenture in form
reasonably satisfactory to the Trustee pursuant to which such Subsidiary shall
unconditionally guarantee all of GroupMAC's obligations under the Notes and the
Indenture on the terms set forth in the Indenture. Thereafter, such Subsidiary
shall be a Guarantor for all purposes of the Indenture. GroupMAC at its option
may also cause any other Restricted Subsidiary of GroupMAC to so become a
Guarantor.
 
  Reporting Requirements. For so long as the Notes are outstanding, whether or
not GroupMAC is subject to Section 13(a) or 15(d) of the Exchange Act, or any
successor provision thereto, GroupMAC shall file with the Commission (if
permitted by Commission practice and applicable law and regulations) the annual
reports, quarterly reports and other documents which GroupMAC would have been
required to file with the Commission pursuant to such Section 13(a) or 15(d) or
any successor provision thereto if GroupMAC were so subject, such documents to
be filed with the Commission on or prior to the respective dates (the "Required
Filing Dates") by which GroupMAC would have been required so to file such
documents if GroupMAC were so subject. GroupMAC shall also in any event within
15 days after each Required Filing Date (whether or not permitted or required
to be filed with the Commission) (1) transmit (or cause to be transmitted) by
mail to all holders of Notes, as their names and addresses appear in the Note
register, without cost to such holders, and (2) file with the Trustee, copies
of the annual reports, quarterly reports and other documents which GroupMAC
would be required to file with the Commission if the Notes were then registered
under the Exchange Act. In addition, for so long as any Notes remain
outstanding, GroupMAC will furnish to the holders of Notes and to securities
analysts and prospective investors, upon their request, the information
required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act,
and, to any beneficial holder of Notes, if not obtainable from the Commission,
information of the type that would be filed with the Commission pursuant to the
foregoing provisions upon the request of any such holder.
 
Consolidation, Merger, Sale of Assets, Etc.
 
  GroupMAC will not, in any transaction or series of transactions, merge or
                                       58
<PAGE>
 
consolidate with or into, or sell, assign, convey, transfer, lease or otherwise
dispose of all or substantially all of its properties and assets as an entirety
to, any person or persons, and GroupMAC will not permit any of its Restricted
Subsidiaries to enter into any such transaction or series of transactions if
such transaction or series of transactions, in the aggregate, would result in a
sale, assignment, conveyance, transfer, lease or other disposition of all or
substantially all of the properties and assets of GroupMAC or GroupMAC and its
Restricted Subsidiaries, taken as a whole, to any other person or persons,
unless at the time and after giving effect thereto
 
    (a) either (1) if the transaction or series of transactions is a merger
  or consolidation, GroupMAC or such Restricted Subsidiary, as the case may
  be, shall be the surviving person of such merger or consolidation, or (2)
  the person formed by such consolidation or into which GroupMAC or such
  Restricted Subsidiary, as the case may be, is merged or to which the
  properties and assets of GroupMAC or such Restricted Subsidiary, as the
  case may be, substantially as an entirety, are transferred (any such
  surviving person or transferee person being the "Surviving Entity") shall
  be a corporation organized and existing under the laws of the United States
  of America, any State thereof or the District of Columbia and shall
  expressly assume by a supplemental indenture executed and delivered to the
  Trustee, in form satisfactory to the Trustee, all the obligations of
  GroupMAC under the Notes, the Indenture and the Registration Rights
  Agreement, and in each case, the Indenture shall remain in full force and
  effect;
 
    (b) immediately after giving effect to such transaction or series of
  transactions on a pro forma basis (including, without limitation, any
  Indebtedness incurred or anticipated to be incurred in connection with or
  in respect of such transaction or series of transactions), no Default or
  Event of Default shall have occurred and be continuing; and
 
    (c) except in the case of any merger of GroupMAC with any Wholly-Owned
  Restricted Subsidiary of GroupMAC or any merger of Guarantors (and, in each
  case, no other persons), GroupMAC or the Surviving Entity, as the case may
  be, after giving effect to such transaction or series of transactions on a
  pro forma basis (including, without limitation, any Indebtedness incurred
  or anticipated to be incurred in connection with or in respect of such
  transaction or series of transactions), could incur $1.00 of additional
  Indebtedness (other than Permitted Indebtedness) (assuming a market rate of
  interest with respect to such additional Indebtedness).
 
  In connection with any consolidation, merger, transfer, lease, assignment or
other disposition contemplated hereby, GroupMAC shall deliver, or cause to be
delivered, to the Trustee, in form and substance reasonably satisfactory to the
Trustee, an officers' certificate and an opinion of counsel, each stating that
such consolidation, merger, transfer, lease, assignment or other disposition
and the supplemental indenture in respect thereof comply with the requirements
under the Indenture.
 
  Upon any consolidation or merger, or any sale, assignment, conveyance,
transfer, lease or disposition of all or substantially all
 
                                       59
<PAGE>
 
of the properties and assets of GroupMAC in accordance with the immediately
preceding paragraphs, the successor person formed by such consolidation or into
which GroupMAC or a Restricted Subsidiary, as the case may be, is merged or the
successor person to which such sale, assignment, conveyance, transfer, lease or
disposition is made shall succeed to, and be substituted for, and may exercise
every right and power of GroupMAC under the Notes, the Indenture and/or the
Registration Rights Agreement, as the case may be, with the same effect as if
such successor had been named as GroupMAC in the Notes, the Indenture and/or
the Registration Rights Agreement, as the case may be, and, except in the case
of a lease, GroupMAC or such Restricted Subsidiary shall be automatically and
unconditionally released and discharged from its obligations thereunder.
 
  The Indenture will provide that for all purposes of the Indenture and the
Notes (including the provision of this covenant and the covenants described in
"--Certain Covenants--Limitation on Indebtedness,"""--Limitation on Restricted
Payments," and "--Limitation on Liens"), Subsidiaries of any surviving person
shall, upon such transaction or series of related transactions, become
Restricted Subsidiaries unless and until designated Unrestricted Subsidiaries
pursuant to and in accordance with "--Limitation on Designations of
Unrestricted Subsidiaries" and all Indebtedness, and all Liens on property or
assets, of GroupMAC and the Restricted Subsidiaries in existence immediately
after such transaction or series of related transactions will be deemed to have
been incurred upon such transaction or series of related transactions.
 
Events of Default
 
  The following are "Events of Default" under the Indenture:
 
    (1) default in the payment of the principal of or premium, if any, when
  due and payable, on any of the Notes (at Stated Maturity, upon optional
  redemption, required purchase or otherwise); or
 
    (2) default in the payment of an installment of interest on any of the
  Notes, when due and payable, for 30 days; or
 
    (3) default in the performance, or breach, of any covenant or agreement
  of GroupMAC under the Indenture (other than a default in the performance or
  breach of a covenant or agreement which is specifically dealt with in
  clause (1), (2) or (4)) and such default or breach shall continue for a
  period of 45 days after written notice has been given, by certified mail,
  (x) to GroupMAC by the Trustee or (y) to GroupMAC and the Trustee by the
  holders of at least 25% in aggregate principal amount of the outstanding
  Notes; or
 
    (4) (a) there shall be a default in the performance or breach of the
  provisions of "--Consolidation, Merger and Sale of Assets, Etc."; (b)
  GroupMAC shall have failed to make or consummate an Asset Sale Offer in
  accordance with the provisions of the Indenture described under "--Certain
  Covenants--Dispositions of Proceeds of Asset Sales"; or (c) GroupMAC shall
  have failed to make or consummate a Change of Control Offer in accordance
  with the provisions of the Indenture described under "--Change of Control";
  or
 
                                       60
<PAGE>
 
    (5) default or defaults under one or more agreements, instruments,
  mortgages, bonds, debentures or other evidences of Indebtedness under which
  GroupMAC or any Significant Subsidiary of GroupMAC then has outstanding
  Indebtedness in excess of $15 million, individually or in the aggregate,
  and (a) such default or defaults include a failure to make a payment of
  principal, (b) such Indebtedness is already due and payable in full or (c)
  such default or defaults have resulted in the acceleration of the maturity
  of such Indebtedness; or
 
    (6) one or more judgments, orders or decrees of any court or regulatory
  or administrative agency of competent jurisdiction for the payment of money
  in excess of $15 million, either individually or in the aggregate, shall be
  entered against GroupMAC or any Significant Subsidiary of GroupMAC or any
  of their respective properties and shall not be discharged and there shall
  have been a period of 60 days after the date on which any period for appeal
  has expired and during which a stay of enforcement of such judgment, order
  or decree shall not be in effect; or
 
    (7) the entry of a decree or order by a court having jurisdiction in the
  premises (A) for relief in respect of GroupMAC or any Significant
  Subsidiary in an involuntary case or proceeding under the Federal
  Bankruptcy Code or any other federal, state or foreign bankruptcy,
  insolvency, reorganization or similar law or (B) adjudging GroupMAC or any
  Significant Subsidiary bankrupt or insolvent, or seeking reorganization,
  arrangement, adjustment or composition of or in respect of GroupMAC or any
  Significant Subsidiary under the Federal Bankruptcy Code or any other
  similar federal, state or foreign law, or appointing a custodian, receiver,
  liquidator, assignee, trustee or sequestrator (or other similar official)
  of GroupMAC or any Significant Subsidiary or of any substantial part of any
  of their properties, or ordering the winding up or liquidation of any of
  their affairs, and the continuance of any such decree or order unstayed and
  in effect for a period of 60 consecutive days; or
 
    (8) the institution by GroupMAC or any Significant Subsidiary of a
  voluntary case or proceeding under the Federal Bankruptcy Code or any other
  similar federal, state or foreign law or any other case or proceedings to
  be adjudicated a bankrupt or insolvent, or the consent by GroupMAC or any
  Significant Subsidiary to the entry of a decree or order for relief in
  respect of GroupMAC or any Significant Subsidiary in any involuntary case
  or proceeding under the Federal Bankruptcy Code or any other similar
  federal, state or foreign law or to the institution of bankruptcy or
  insolvency proceedings against GroupMAC or any Significant Subsidiary, or
  the filing by GroupMAC or any Significant Subsidiary of a petition or
  answer or consent seeking reorganization or relief under the Federal
  Bankruptcy Code or any other similar federal, state or foreign law, or the
  consent by it to the filing of any such petition or to the appointment of
  or taking possession by a custodian, receiver, liquidator, assignee,
  trustee or sequestrator (or other similar official) of any of GroupMAC or
  any Significant Subsidiary or of any substantial part of its property, or
  the making by it of an
                                       61
<PAGE>
 
  assignment for the benefit of creditors, or the admission by it in writing
  of its inability to pay its debts generally as they become due or the
  taking of corporate action by GroupMAC or any Significant Subsidiary in
  furtherance of any such action; or
 
    (9) any of the Guarantees by a Significant Subsidiary ceases to be in
  full force and effect or any of such Guarantees is declared to be null and
  void and unenforceable or any of such Guarantees is found to be invalid or
  any of such Guarantors denies its liability under its Guarantee (other than
  by reason of release of such Guarantor in accordance with the terms of the
  Indenture).
 
  If an Event of Default (other than those covered by clause (7) or (8) above
with respect to GroupMAC) shall occur and be continuing, the Trustee, by notice
to GroupMAC, or the holders of at least 25% in aggregate principal amount of
the Notes then outstanding, by notice to the Trustee and GroupMAC, may declare
the principal of, premium, if any, and accrued and unpaid interest, if any, on
all of the outstanding Notes due and payable immediately, upon which
declaration, all amounts payable in respect of the Notes (1) shall be due and
payable and (2) if there are any amounts outstanding under the New Credit
Agreement, shall become immediately due and payable upon the first to occur of
an acceleration under the New Credit Agreement or five business days after
receipt by GroupMAC and the Representative under the New Credit Agreement of
such notice of acceleration. If an Event of Default specified in clause (7) or
(8) above with respect to GroupMAC occurs and is continuing, then the principal
of, premium, if any, and accrued and unpaid interest, if any, on all the
outstanding Notes shall ipso facto become and be immediately due and payable
without any declaration or other act on the part of the Trustee or any holder
of Notes.
 
  After a declaration of acceleration under the Indenture, but before a
judgment or decree for payment of the money due has been obtained by the
Trustee, the holders of a majority in aggregate principal amount of the
outstanding Notes, by written notice to GroupMAC and the Trustee, may rescind
such declaration if
 
    (a) GroupMAC has paid or deposited with the Trustee a sum sufficient to
  pay (1) all sums paid or advanced by the Trustee under the Indenture and
  the reasonable compensation, expenses, disbursements and advances of the
  Trustee, its agents and counsel, (2) all overdue interest on all Notes, (3)
  the principal of and premium, if any, on any Notes which have become due
  otherwise than by such declaration of acceleration and interest thereon at
  the rate borne by the Notes, and (4) to the extent that payment of such
  interest is lawful, interest upon overdue interest and overdue principal at
  the rate borne by the Notes which has become due otherwise than by such
  declaration of acceleration;
 
    (b) the rescission would not conflict with any judgment or decree of a
  court of competent jurisdiction; and
 
    (c) all Events of Default, other than the non-payment of principal of,
  premium, if any, and interest on the Notes that has become due solely by
  such declaration of acceleration, have been cured or waived.
                                       62
<PAGE>
 
  The holders of not less than a majority in aggregate principal amount of the
outstanding Notes may on behalf of the holders of all the Notes waive any past
defaults under the Indenture, except a default in the payment of the principal
of, premium, if any, or interest on any Note, or in respect of a covenant or
provision which under the Indenture cannot be modified or amended without the
consent of the holder of each Note outstanding.
 
  No holder of any of the Notes has any right to institute any proceeding with
respect to the Indenture or any remedy thereunder, unless the holders of at
least 25% in aggregate principal amount of the outstanding Notes have made
written request, and offered reasonable indemnity, to the Trustee to institute
such proceeding as Trustee under the Notes and the Indenture, the Trustee has
failed to institute such proceeding within 60 days after receipt of such notice
and the Trustee, within such 60-day period, has not received directions
inconsistent with such written request by holders of a majority in aggregate
principal amount of the outstanding Notes. Such limitations do not apply,
however, to a suit instituted by a holder of a Note for the enforcement of the
payment of the principal of, premium, if any, or interest on such Note on or
after the respective due dates expressed in such Note.
 
  During the existence of an Event of Default, the Trustee is required to
exercise such rights and powers vested in it under the Indenture and use the
same degree of care and skill in its exercise thereof as a prudent person would
exercise under the circumstances in the conduct of such person's own affairs.
Subject to the provisions of the Indenture relating to the duties of the
Trustee, whether or not an Event of Default shall occur and be continuing, the
Trustee under the Indenture is not under any obligation to exercise any of its
rights or powers under the Indenture at the request or direction of any of the
holders unless such holders shall have offered to the Trustee reasonable
security or indemnity. Subject to certain provisions concerning the rights of
the Trustee, the holders of a majority in aggregate principal amount of the
outstanding Notes have the right to direct the time, method and place of
conducting any proceeding for any remedy available to the Trustee, or
exercising any trust or power conferred on the Trustee under the Indenture.
 
  If a Default or an Event of Default occurs and is continuing and is known to
the Trustee, the Trustee shall mail to each holder of the Notes notice of the
Default or Event of Default within 30 days after obtaining knowledge thereof.
Except in the case of a Default or an Event of Default in payment of principal
of, premium, if any, or interest on any Notes, the Trustee may withhold the
notice to the holders of such Notes if a committee of its trust officers in
good faith determines that withholding the notice is in the interest of the
Noteholders.
 
  GroupMAC is required to furnish to the Trustee annual and quarterly
statements as to the performance by GroupMAC of its obligations under the
Indenture and as to any default in such performance. GroupMAC is also required
to notify the Trustee within five business days of any event which is, or after
notice or lapse of time or both would become, an Event of Default.
 
No Liability for Certain Persons
 
  No director, officer, employee or stockholder of GroupMAC, nor any director,
officer or employee of any Guarantor, as such, will have any liability for any
 
                                       63
<PAGE>
 
obligations of GroupMAC or any Guarantor under the Notes, the Guarantees or the
Indenture based on or by reason of such obligations or their creation. Each
holder by accepting a Note waives and releases all such liability. The
foregoing waiver and release are an integral part of the consideration for the
issuance of the Notes. Such waiver may not be effective to waive liabilities
under the federal securities laws.
 
Defeasance or Covenant Defeasance of Indenture
 
  GroupMAC may, at its option and at any time, terminate the substantive
obligations of GroupMAC and the Guarantors with respect to the outstanding
Notes ("defeasance") to the extent set forth below. Such defeasance means that
GroupMAC shall be deemed to have paid and discharged the entire Indebtedness
represented by the outstanding Notes, except for
 
    (1) the rights of holders of outstanding Notes to receive payment in
  respect of the principal of, premium, if any, and interest on such Notes
  when such payments are due,
 
    (2) GroupMAC's obligations to issue temporary Notes, register the
  transfer or exchange of any Notes, replace mutilated, destroyed, lost or
  stolen Notes and maintain an office or agency for payments in respect of
  the Notes,
 
    (3) the rights, powers, trusts, duties and immunities of the Trustee, and
 
    (4) the defeasance provisions of the Indenture. In addition, GroupMAC
  may, at its option and at any time, elect to terminate the substantive
  obligations of GroupMAC and the Guarantors that are set forth in the
  Indenture, including those which are described under "--Certain Covenants"
  above, and any subsequent failure to comply with such obligations shall not
  constitute a Default or an Event of Default with respect to the Notes
  ("covenant defeasance").
 
  In order to exercise either defeasance or covenant defeasance,
 
    (1) GroupMAC must irrevocably deposit with the Trustee, in trust, for the
  benefit of the holders of the Notes, cash in United States dollars, U.S.
  Government Obligations (as defined in the Indenture), or a combination
  thereof, in such amounts as will be sufficient, in the opinion of a
  nationally recognized firm of independent public accountants, to pay the
  principal of, premium, if any, and interest on the outstanding Notes to
  redemption or maturity (except lost, stolen or destroyed Notes which have
  been replaced or paid;
 
    (2) GroupMAC shall have delivered to the Trustee an opinion of counsel to
  the effect that the holders of the outstanding Notes will not recognize
  income, gain or loss for federal income tax purposes as a result of such
  defeasance or covenant defeasance and will be subject to federal income tax
  on the same amounts, in the same manner and at the same times as would have
  been the case if such defeasance or covenant defeasance had not occurred
  (in the case of defeasance, such opinion must refer to and be based upon a
  ruling of the Internal Revenue Service or a change in applicable federal
  income tax laws);
 
    (3) no Default or Event of Default shall have occurred and be continuing
  on the date of such deposit;
 
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<PAGE>
 
    (4) such defeasance or covenant defeasance shall not cause the Trustee to
  have a conflicting interest with respect to any securities of GroupMAC;
 
    (5) such defeasance or covenant defeasance shall not result in a breach
  or violation of, or constitute a default under, any agreement or instrument
  to which GroupMAC is a party or by which it is bound;
 
    (6) GroupMAC shall have delivered to the Trustee an opinion of counsel to
  the effect that after the 91st day following the deposit, the trust funds
  will not be subject to the effect of any applicable bankruptcy, insolvency,
  reorganization or similar laws affecting creditors' rights generally;
 
    (7) GroupMAC shall have delivered to the Trustee an officers' certificate
  stating that the deposit was not made by GroupMAC with the intent of
  preferring the holders of the Notes over the other creditors of GroupMAC
  with the intent of hindering, delaying or defrauding creditors of GroupMAC
  or others;
 
    (8) no event or condition shall exist that would prevent GroupMAC from
  making payments of the principal of, premium, if any, and interest on the
  Notes on the date of such deposit or at any time ending on the 91st day
  after the date of such deposit; and
 
    (9) GroupMAC shall have delivered to the Trustee an officers' certificate
  and an opinion of counsel, each stating that all conditions precedent under
  the Indenture to either defeasance or covenant defeasance, as the case may
  be, have been complied with.
 
  GroupMAC may exercise its defeasance option notwithstanding its prior
exercise of its covenant defeasance option.
 
Satisfaction and Discharge
 
  The Indenture will be discharged and will cease to be of further effect
(except as to surviving rights or registration of transfer or exchange of the
Notes, as expressly provided for in the Indenture) as to all outstanding Notes
when
 
    (1) either (a) all the Notes theretofore authenticated and delivered
  (except lost, stolen or destroyed Notes which have been replaced or repaid
  and Notes for whose payment money has theretofore been deposited in trust
  or segregated and held in trust by GroupMAC and thereafter repaid to
  GroupMAC or discharged from such trust) have been delivered to the Trustee
  for cancellation or (b) all Notes not theretofore delivered to the Trustee
  for cancellation (except lost, stolen or destroyed Notes which have been
  replaced or paid) have become due and payable and GroupMAC has irrevocably
  deposited or caused to be deposited with the Trustee funds in an amount
  sufficient to pay and discharge the entire Indebtedness on the Notes not
  theretofore delivered to the Trustee for cancellation, for principal of,
  premium, if any, and interest on the Notes to the date of deposit together
  with irrevocable instructions from GroupMAC directing the Trustee to apply
  such funds to the payment thereof at maturity or redemption, as the case
  may be;
 
    (2) GroupMAC has paid all other sums payable under the Indenture by
  GroupMAC; and
 
    (3) GroupMAC has delivered to the Trustee an officers' certificate and an
  opinion of counsel stating that all conditions precedent under the
  Indenture
 
                                       65
<PAGE>
 
  relating to the satisfaction and discharge of the Indenture have been
  complied with.
 
Amendments and Waivers
 
  From time to time, GroupMAC, when authorized by a resolution of its Board of
Directors, and the Trustee may, without the consent of the holders of any
outstanding Notes, amend, waive or supplement the Indenture or the Notes for
certain specified purposes, including, among other things, curing ambiguities,
defects or inconsistencies, qualifying, or maintaining the qualification of,
the Indenture under the Trust Indenture Act, or making any change that does not
adversely affect the rights of any holder of Notes. Other amendments and
modifications of the Indenture or the Notes may be made by GroupMAC and the
Trustee with the consent of the holders of not less than a majority of the
aggregate principal amount of the outstanding Notes; provided, however, that no
such modification or amendment may, without the consent of the holder of each
outstanding Note affected thereby,
 
    (1) reduce the principal amount of, change the fixed maturity of or alter
  the redemption provisions of the Notes,
 
    (2) change the currency in which any Notes or any premium or the interest
  thereon is payable,
 
    (3) reduce the percentage in principal amount of outstanding Notes that
  must consent to an amendment, supplement or waiver or consent to take any
  action under the Indenture or the Notes,
 
    (4) impair the right to institute suit for the enforcement of any payment
  on or with respect to the Notes,
 
    (5) waive a default in payment with respect to the Notes,
 
    (6) amend, change or modify the obligation of GroupMAC to make and
  consummate a Change of Control Offer after the occurrence of a Change of
  Control or make and consummate the Asset Sale Offer with respect to any
  Asset Sale that has been consummated or modify any of the provisions or
  definitions with respect thereto,
 
    (7) reduce or change the rate or time for payment of interest on the
  Notes, or
 
    (8) modify or change any provision of the Indenture or the related
  definitions affecting the subordination or ranking of the Notes or any
  Guarantee in a manner which adversely affects the Noteholders.
 
The Trustee
 
  The Indenture provides that, except during the continuance of an Event of
Default, the Trustee thereunder will perform only such duties as are
specifically set forth in the Indenture. If an Event of Default has occurred
and is continuing, the Trustee will exercise such rights and powers vested in
it under the Indenture and use the same degree of care and skill in its
exercise as a prudent person would exercise under the circumstances in the
conduct of such person's own affairs.
 
  The Indenture and provisions of the Trust Indenture Act incorporated by
reference therein contain limitations on the rights of the Trustee thereunder,
should it become a creditor of GroupMAC, to obtain payment of claims in certain
cases or to realize on certain property received by it in respect of any such
claims, as security or
 
                                       66
<PAGE>
 
otherwise. The Trustee is permitted to engage in other transactions; provided,
however, that if it acquires any conflicting interest (as defined in such Act)
it must eliminate such conflict or resign.
 
  State Street Bank and Trust Company, 225 Franklin Street, Boston,
Massachusetts 02110, is the Trustee under the Indenture.
 
Governing Law
 
  The Indenture and the Notes are governed by the laws of the State of New
York, without regard to the principles of conflicts of law.
 
Certain Definitions
 
  "Acquired Indebtedness" means Indebtedness of a person (a) assumed in
connection with an Asset Acquisition from such person or (b) existing at the
time such person becomes or is merged into a Subsidiary of any other person
other than Indebtedness incurred in connection with, or in contemplation of,
such Asset Acquisition or such person becoming a Subsidiary.
 
  "Affiliate" means, with respect to any specified person, (1) any other person
directly or indirectly controlling or controlled by or under direct or indirect
common control with such specified person, (2) any other person that owns,
directly or indirectly, 10% or more of such specified person's Voting Stock, or
(3) any officer or director of (A) any such specified person, (B) any
Subsidiary of such specified person or (C) any person described in clause (1)
or (2) above.
 
  "Asset Acquisition" means (a) an Investment by GroupMAC or any Restricted
Subsidiary of GroupMAC in any other person pursuant to which such person shall
become a Restricted Subsidiary of GroupMAC, or shall be merged with or into
GroupMAC or any Restricted Subsidiary of GroupMAC, or (b) the acquisition by
GroupMAC or any Restricted Subsidiary of GroupMAC of the assets of any person
which constitute all or substantially all of the assets of such person, any
division or line of business of such person or, other than in the ordinary
course of business, any other properties or assets of such person.
 
  "Asset Sale" means any sale, issuance, conveyance, transfer, lease (that has
the effect of a disposition) or other disposition by GroupMAC or any Restricted
Subsidiary of GroupMAC to any person other than GroupMAC or a Restricted
Subsidiary of GroupMAC, of (a) any Capital Stock of any Restricted Subsidiary
of GroupMAC; (b) all or substantially all of the properties and assets of any
division or line of business of GroupMAC or any Restricted Subsidiary of
GroupMAC; or (c) any other properties or assets of GroupMAC or any Restricted
Subsidiary outside of the ordinary course of business, other than (1) sales of
obsolete, damaged or used equipment or other equipment or inventory sales in
the ordinary course of business, (2) sales of assets in one or a series of
related transactions for an aggregate consideration of less than $5.0 million,
(3) sales of accounts receivable for financing purposes, (4) the grant in the
ordinary course of business of any non-exclusive license of patents,
trademarks, registrations therefor and other similar intellectual property, (5)
any Lien (or foreclosure thereon) securing Indebtedness to the extent that such
Lien is granted in compliance with "--Limitation on Liens" above, and (6) any
Restricted Payment permitted by "--Limitation on Payments" above. For the
purposes of this definition, the term "Asset Sale" shall not include any sale,
issuance, conveyance, transfer, lease or
                                       67
<PAGE>
 
other disposition of properties or assets that is governed by the provisions
described under "--Consolidation, Merger, Sale of Assets, Etc."
 
  "Average Life to Stated Maturity" means, with respect to any Indebtedness, as
at any date of determination, the quotient obtained by dividing (1) the sum of
the products of (a) the number of years from such date of such determination to
the date or dates of each successive scheduled principal payment (including,
without limitation, any sinking fund requirements) of such Indebtedness and (b)
the amount of each such principal payment by (2) the sum of all such principal
payments.
 
  "Board of Directors" means the board of directors of a company or its
equivalent, including managers of a limited liability company, general partners
of a partnership or trustees of a business trust, or any duly authorized
committee thereof.
 
  "Capital Stock" means, with respect to any person, any and all shares,
interests, participations, rights in or other equivalents (however designated)
of such person's capital stock or equity participations, and any rights (other
than debt securities convertible into capital stock), warrants or options
exchangeable for or convertible into such capital stock and including, without
limitation, with respect to partnerships, limited liability companies or
business trusts, ownership interests (whether general or limited) and any other
interest or participation that confers on a person the right to receive a share
of the profits and losses of, or distributions of assets of, such partnerships,
limited liability companies or business trusts.
 
  "Capitalized Lease Obligation" means any obligation under a lease of (or
other agreement conveying the right to use) any property (whether real,
personal or mixed) that is required to be classified and accounted for as a
capital lease obligation under GAAP, and, for the purpose of the Indenture, the
amount of such obligation at any date shall be the capitalized amount thereof
at such date, determined in accordance with GAAP and the stated maturity
thereof shall be the date of the last payment of rent or any other amount due
under such lease prior to the first date upon which such lease may be
terminated by the lessee without payment of a penalty.
 
  "Cash Equivalents" means, at any time, (a) any evidence of Indebtedness,
maturing not more than one year after such time, issued or guaranteed by the
United States Government or any agency thereof, (b) commercial paper, maturing
not more than one year from the date of issue, or corporate demand notes, in
each case rated at least A-1 by Standard & Poor's Ratings Group or P-1 by
Moody's Investors Service, Inc., (c) any certificate of deposit (or time
deposits represented by such certificates of deposit) or bankers acceptance,
maturing not more than one year after such time, or overnight Federal Funds
transactions that are issued or sold by a commercial banking institution that
is a member of the Federal Reserve System and has a combined capital and
surplus and undivided profits of not less than $500 million, (d) any repurchase
agreement entered into with any commercial banking institution of the stature
referred to in clause (c) which (i) is secured by a fully perfected security
interest in any obligation of the type described in any of clauses (a) through
(c) and (ii) has a market value at the time such repurchase agreement is
entered into of not less than 100% of the repurchase obligation of such
commercial banking institution thereunder, (e) investments in
 
                                       68
<PAGE>
 
short term asset management accounts managed by any bank party to the New
Credit Agreement (or by an affiliate of any such bank) which are invested in
indebtedness of any state or municipality of the United States or of the
District of Columbia and which are rated under one of the two highest ratings
then obtainable from Standard & Poor's Ratings Group or Moody's Investors
Service, Inc. or investments of the types described in clauses (a) through (d)
above, and (f) investments in funds investing primarily in investments of the
types described in clauses (a) through (e) above.
 
  "Change of Control" means the occurrence of any of the following events: (a)
any "person" or "group" (as such terms are used in Sections 13(d) and 14(d) of
the Exchange Act) is or becomes the "beneficial owner" (as defined in Rules
13d-3 and 13d-5 under the Exchange Act, except that a person shall be deemed to
have "beneficial ownership" of all securities that such person has the right to
acquire, whether such right is exercisable immediately or only after the
passage of time), directly or indirectly, of more than 50% of the total Voting
Stock of GroupMAC; (b) GroupMAC consolidates with, or merges with or into,
another person or sells, assigns, conveys, transfers, leases or otherwise
disposes of all or substantially all of its assets to any person, or any person
consolidates with, or merges with or into, GroupMAC, in any such event pursuant
to a transaction in which the outstanding Voting Stock of GroupMAC is converted
into or exchanged for cash, securities or other property, other than any such
transaction where (i) the outstanding Voting Stock of GroupMAC is converted
into or exchanged for Voting Stock (other than Redeemable Capital Stock) of the
surviving or transferee corporation and (ii) immediately after such transaction
no "person" or "group" (as such terms are used in Sections 13(d) and 14(d) of
the Exchange Act) is the "beneficial owner" (as defined in Rules 13d-3 and
13d-5 under the Exchange Act, except that a person shall be deemed to have
"beneficial ownership" of all securities that such person has the right to
acquire, whether such right is exercisable immediately or only after the
passage of time), directly or indirectly, of more than 50% of the total Voting
Stock of the surviving or transferee corporation; (c) during any consecutive
two-year period, individuals who at the beginning of such period constituted
the Board of Directors of GroupMAC (together with any new directors whose
election by such Board of Directors or whose nomination for election by the
stockholders of GroupMAC was approved by a vote of 66 2/3% of the directors
then still in office who were either directors at the beginning of such period
or whose election or nomination for election was previously so approved) cease
for any reason to constitute a majority of the Board of Directors of GroupMAC
then in office; or (d) GroupMAC is liquidated or dissolved or adopts a plan of
liquidation.
 
  "Common Stock" means the common stock of GroupMAC, par value $0.001 per
share.
 
  "Consolidated Cash Flow Available for Fixed Charges" as of any date of
determination means, with respect to any person for any period, (1) the sum of,
without duplication, the amounts for such period, taken as a single accounting
period, of (a) Consolidated Net Income, (b) Consolidated Non-cash Charges, (c)
Consolidated Interest Expense, (d) Consolidated Income Tax Expense (other than
income tax expense (either positive or negative) attributable to extraordinary
gains
                                       69
<PAGE>
 
or losses), (e) one-fourth of Consolidated Rental Payments and (f) if any Asset
Sale or Asset Acquisition shall have occurred since the first day of any four-
quarter period for which Consolidated Cash Flow Available for Fixed Charges is
being calculated (including to the date of calculation) (A) the amount of any
compensation, remuneration or other benefit paid or provided to any employee,
consultant, Affiliate or equity owner of the entity involved in any such Asset
Acquisition to the extent such costs are eliminated or reduced (or public
announcement has been made of the intent to eliminate or reduce such costs)
prior to the date of such calculation and not replaced and (B) the amount of
any reduction in general, administrative or overhead costs of the entity
involved in any such Asset Acquisition, to the extent such amounts under
clauses (A) and (B) would be permitted to be eliminated in a pro forma income
statement prepared in accordance with Rule 11-02 of Regulation S-X, less (2)
the sum of (x) non-cash items increasing Consolidated Net Income and (y) all
cash payments during such period relating to non-cash charges that were added
back in determining Consolidated Cash Flow Available for Fixed Charges in the
most recent four-quarter period (as defined in the definition of "Consolidated
Fixed Charge Coverage Ratio").
 
  "Consolidated Fixed Charge Coverage Ratio" as of any date of determination
means, with respect to any person, the ratio of the aggregate amount of
Consolidated Cash Flow Available for Fixed Charges of such person for the four
full fiscal quarters, treated as one period, for which financial information in
respect thereof is available immediately preceding the date of the transaction
(the "Transaction Date") giving rise to the need to calculate the Consolidated
Fixed Charge Coverage Ratio (such four full fiscal quarter period being
referred to herein as the "Four Quarter Period") to the aggregate amount of
Consolidated Fixed Charges of such person for the Four Quarter Period. In
calculating Consolidated Fixed Charges for purposes of determining the
denominator (but not the numerator) of this Consolidated Fixed Charge Coverage
Ratio, (1) interest on outstanding Indebtedness determined on a fluctuating
basis as of the Transaction Date and which will continue to be so determined
thereafter shall be deemed to have accrued at a fixed rate per annum equal to
the rate of interest on such Indebtedness in effect on the Transaction Date;
and (2) if interest on any Indebtedness actually incurred on the Transaction
Date may optionally be determined at an interest rate based upon a factor of a
prime or similar rate, a eurocurrency interbank offered rate, or other rates,
then the interest rate in effect on the Transaction Date will be deemed to have
been in effect during the Four Quarter Period. If such person or any of its
Restricted Subsidiaries directly or indirectly guarantees Indebtedness of a
third person, the above clause shall give effect to the incurrence of such
guaranteed Indebtedness as if such person or such Subsidiary had directly
incurred or otherwise assumed such guaranteed Indebtedness.
 
  "Consolidated Fixed Charges" means, with respect to any person for any
period, the sum of, without duplication, the amounts for such period of (1)
Consolidated Interest Expense, (2) the aggregate amount of dividends and other
distributions paid or accrued during such period in respect of Redeemable
Capital Stock of such person and its Restricted Subsidiaries on a consolidated
basis and (3) one-fourth of Consolidated Rental Payments.
 
  "Consolidated Income Tax Expense" means, with respect to any person for any
 
                                       70
<PAGE>
 
period, the provision for federal, state, local and foreign income taxes of
such person and its Restricted Subsidiaries for such period as determined on a
consolidated basis in accordance with GAAP.
 
  "Consolidated Interest Expense" means, with respect to any person for any
period, without duplication, the sum of (1) the interest expense of such person
and its Restricted Subsidiaries for such period as determined on a consolidated
basis in accordance with GAAP, including, without limitation, (a) any
amortization of debt discount, (b) the net cost under Interest Rate Protection
Obligations (including any amortization of discounts), (c) the interest portion
of any deferred payment obligation, (d) all commissions, discounts and other
fees and charges owed with respect to letters of credit, bankers' acceptance
financing or similar facilities and (e) all accrued interest and (2) the
interest component of Capitalized Lease Obligations paid, accrued and/or
scheduled to be paid or accrued by such person and its Restricted Subsidiaries
during such period as determined on a consolidated basis in accordance with
GAAP.
 
  "Consolidated Net Income" means, with respect to any person, for any period,
the consolidated net income (or loss) of such person and its Restricted
Subsidiaries for such period as determined in accordance with GAAP, adjusted,
to the extent included in calculating such net income, by excluding, without
duplication, (1) all extraordinary gains or losses (net of fees and expenses
relating to the transaction giving rise thereto), (2) the portion of net income
of such person and its Restricted Subsidiaries allocable to minority interests
in unconsolidated persons or to Investments in Unrestricted Subsidiaries to the
extent that cash dividends or distributions have not actually been received by
such person or one of its Restricted Subsidiaries, (3) net income (or loss) of
any person combined with such person or one of its Restricted Subsidiaries on a
"pooling of interests" basis attributable to any period prior to the date of
combination, (4) gains or losses in respect of any Asset Sales by such person
or one of its Restricted Subsidiaries (net of fees and expenses relating to the
transaction giving rise thereto), on an after-tax basis, (5) the net income of
any Restricted Subsidiary of such person to the extent that the declaration of
dividends or similar distributions by that Restricted Subsidiary of that income
is not at the time permitted, directly or indirectly, by operation of the terms
of its charter or any agreement, instrument, judgment, decree, order, statute,
rule or governmental regulation applicable to that Restricted Subsidiary or its
stockholders and (6) any gain or loss realized as a result of the cumulative
effect of a change in accounting principles.
 
  "Consolidated Non-cash Charges" means, with respect to any person for any
period, the aggregate depreciation, amortization (including amortization of
goodwill and other intangibles) and other non-cash expenses of such person and
its Restricted Subsidiaries reducing Consolidated Net Income of such person and
its Restricted Subsidiaries for such period, determined on a consolidated basis
in accordance with GAAP (excluding any such charges constituting an
extraordinary item or loss).
 
  "Consolidated Rental Payments" of any person means, for any period, the
aggregate rental obligations of such person and its Restricted Subsidiaries
(not including taxes, insurance, maintenance and similar expenses that the
lessee is obligated to pay
                                       71
<PAGE>
 
under the terms of the relevant leases), determined on a consolidated basis in
accordance with GAAP, payable in respect of such period (net of income from
subleases thereof, not including taxes, insurance, maintenance and similar
expenses that the sublessee is obligated to pay under the terms of such
sublease), whether or not such obligations are reflected as liabilities or
commitments on a consolidated balance sheet of such person and its Restricted
Subsidiaries or in the notes thereto, excluding, however, in any event, (1)
that portion of Consolidated Interest Expense of such person representing
payments by such person or any of its Restricted Subsidiaries in respect of
Capitalized Lease Obligations (net of payments to such person or any of its
Restricted Subsidiaries under subleases qualifying as capitalized lease
subleases to the extent that such payments would be deducted in determining
Consolidated Interest Expense) and (2) the aggregate amount of amortization of
obligations of such person and its Restricted Subsidiaries in respect of such
Capitalized Lease Obligations for such period (net of payments to such person
or any of its Restricted Subsidiaries and subleases qualifying as capitalized
lease subleases to the extent that such payments could be deducted in
determining such amortization amount).
 
  "control" when used with respect to any specified person means the power to
direct the management and policies of such person, directly or indirectly,
whether through ownership of voting securities, by contract or otherwise; and
the terms "controlling" and "controlled" have meanings correlative to the
foregoing.
 
  "Credit Facility" means one or more debt or commercial paper facilities with
banks or other institutional lenders (including the New Credit Agreement)
providing for revolving credit loans, term loans, receivables or inventory
financing (including through the sale of receivables or inventory to such
lenders or to special purpose, bankruptcy remote entities formed to borrow from
such lenders against such receivables or inventory) or letters of credit, in
each case together with any amendments, supplements, modifications (including
by any extension of the maturity thereof), substitutions, refinancing or
replacements thereof by a lender or syndicate of lenders in one or more
successive transactions (including any such transaction that changes the amount
available thereunder, replaces such agreement or document, or provides for
other agents or lenders).
 
  "Default" means any event that is, or after notice or passage of time or both
would be, an Event of Default.
 
  "Event of Default" has the meaning set forth under "--Events of Default"
herein.
 
  "Exchange Act" means the Securities Exchange Act of 1934, as amended.
 
  "Fair Market Value" means, with respect to any asset, the price (after taking
into account any liabilities relating to such assets) which could be negotiated
in an arm's length free market transaction between a willing seller and a
willing buyer, neither of which is under pressure or compulsion to complete the
transaction. Fair Market Value shall be determined by the Board of Directors of
GroupMAC in good faith.
 
  "Foreign Restricted Subsidiary" means a Restricted Subsidiary which is not
organized under the laws of the United States, or any possession or territory
thereof, any State of the United States or the District of Columbia.
 
                                       72
<PAGE>
 
  "GAAP" means generally accepted accounting principles set forth in the
opinions and pronouncements of the Accounting Principles Board of the American
Institute of Certified Public Accountants and statements and pronouncements of
the Financial Accounting Standards Board or in such other statements by such
other entity as may be approved by a significant segment of the accounting
profession of the United States of America, which are applicable at the date of
the Indenture.
 
  "guarantee" means, as applied to any obligation, (1) a guarantee (other than
by endorsement of negotiable instruments for collection in the ordinary course
of business), direct or indirect, in any manner, of any part or all of such
obligation and (2) an agreement, direct or indirect, contingent or otherwise,
the practical effect of which is to assure in any way the payment or
performance (or payment of damages in the event of nonperformance) of all or
any part of such obligation, including, without limiting the foregoing, the
payment of amounts available to be drawn down under letters of credit of
another person.
 
  "Indebtedness" means, with respect to any person, without duplication, (a)
all liabilities of such person for borrowed money or for the deferred purchase
price of property or services, excluding any trade payables and other accrued
current liabilities incurred in the ordinary course of business, but including,
without limitation, all obligations, contingent or otherwise, of such person in
connection with any letters of credit, banker's acceptance or other similar
credit transaction, (b) all obligations of such person evidenced by bonds,
notes, debentures or other similar instruments, (c) all indebtedness created or
arising under any conditional sale or other title retention agreement with
respect to property acquired by such person (even if the rights and remedies of
the seller or lender under such agreement in the event of default are limited
to repossession or sale of such property), but excluding consignments, trade
accounts payable arising in the ordinary course of business, (d) all
Capitalized Lease Obligations of such person, (e) all Indebtedness referred to
in the preceding clauses of other persons and all dividends of other persons,
the payment of which is secured by (or for which the holder of such
Indebtedness has an existing right, contingent or otherwise, to be secured by)
any Lien upon property (including, without limitation, accounts and contract
rights) owned by such person, even though such person has not assumed or become
liable for the payment of such Indebtedness (the amount of such obligation
being deemed to be the lesser of the Fair Market Value of such property or
asset or the amount of the obligation so secured), (f) all guarantees of
Indebtedness referred to in this definition by such person, (g) all Redeemable
Capital Stock of such person valued at the greater of its voluntary or
involuntary maximum fixed repurchase price plus accrued dividends, (h) all
Interest Rate Protection Obligations of such person, and (i) any amendment,
supplement, modification, deferral, renewal, extension, refinancing or
refunding of any liability of the types referred to in clauses (a) through (h)
above; provided, however, that Indebtedness shall not include (1) any holdback
or escrow of the purchase price of property, services, businesses or assets,
(2) any contingent payment obligations incurred in connection with the
acquisition of assets or businesses, which are contingent on the performance of
the assets or businesses so acquired or (3) obligations under performance
bonds, performance guarantees,
 
                                       73
<PAGE>
 
surety bonds, appeal bonds, security deposits or similar obligations. For
purposes hereof, the "maximum fixed repurchase price" of any Redeemable Capital
Stock which does not have a fixed repurchase price shall be calculated in
accordance with the terms of such Redeemable Capital Stock as if such
Redeemable Capital Stock were purchased on any date on which Indebtedness shall
be required to be determined pursuant to the Indenture, and if such price is
based upon, or measured by, the fair market value of such Redeemable Capital
Stock, such fair market value shall be approved in good faith by the board of
directors of the issuer of such Redeemable Capital Stock.
 
  "Interest Rate Protection Agreement" means, with respect to any person, any
arrangement with any other person whereby, directly or indirectly, such person
is entitled to receive from time to time periodic payments calculated by
applying either a floating or a fixed rate of interest on a stated notional
amount in exchange for periodic payments made by such person calculated by
applying a fixed or a floating rate of interest on the same notional amount and
shall include, without limitation, interest rate swaps, caps, floors, collars
and similar agreements.
 
  "Interest Rate Protection Obligations" means the net obligations of any
person pursuant to any Interest Rate Protection Agreements.
 
  "Investment" means, with respect to any person, any direct or indirect loan
or other extension of credit (including, without limitation, a guarantee) or
capital contribution to (by means of any transfer of cash or other property to
others or any payment for property or services for the account or use of
others), but other than advances to customers in the ordinary course of
business recorded as an account receivable in accordance with GAAP on the books
of the person making the advance, or any purchase or acquisition by such person
of any Capital Stock, bonds, notes, debentures or other securities or evidences
of Indebtedness issued by, any other person.
 
  "Lien" means any mortgage, charge, pledge, lien (statutory or other),
security interest, hypothecation, assignment for security, claim or other
encumbrance upon or with respect to any property of any kind. A person shall be
deemed to own subject to a Lien any property which such person has acquired or
holds subject to the interest of a vendor or lessor under any conditional sale
agreement (other than a consignment), capital lease or other title retention
agreement.
 
  "Maturity Date" means January 15, 2009.
 
  "Net Cash Proceeds" means, with respect to any Asset Sale, the proceeds
thereof in the form of cash or Cash Equivalents including payments in respect
of deferred payment obligations when received in the form of cash or Cash
Equivalents (except to the extent that such obligations are financed or sold
with recourse to GroupMAC or any Restricted Subsidiary of GroupMAC) net of (1)
brokerage commissions and other fees and expenses (including, without
limitation, fees and expenses of legal counsel and investment bankers,
recording fees, transfer fees and appraisers' fees) related to such Asset Sale,
(2) provisions for all taxes payable as a result of such Asset Sale, (3)
amounts required to be paid to any person (other than GroupMAC or any
Restricted Subsidiary of GroupMAC) owning a beneficial interest in the assets
subject to the Asset Sale, (4) payments made to retire Indebtedness where
payment of such
 
                                       74
<PAGE>
 
Indebtedness is secured by the assets or properties the subject of such Asset
Sale, and (5) appropriate amounts to be provided by GroupMAC or any Restricted
Subsidiary of GroupMAC, as the case may be, as a reserve required in accordance
with GAAP against any liabilities associated with such Asset Sale and retained
by GroupMAC or any Restricted Subsidiary of GroupMAC, as the case may be, after
such Asset Sale, including, without limitation, pension and other post-
employment benefit liabilities, liabilities related to environmental matters
and liabilities under any indemnification obligations associated with such
Asset Sale.
 
  "New Credit Agreement" means the Second Amended and Restated Credit Agreement
dated as of October 15, 1998 among GroupMAC, the Subsidiaries of GroupMAC
listed as guarantors therein, Chase Bank of Texas, National Association, as the
Agent, Bank of America Texas, N.A., as co-Agent, Paribas, as syndication agent
and ABN AMRO Bank, N.A., as documentation agent, and the Banks named therein,
including any notes, guarantees, collateral documents, instruments and
agreements executed in connection therewith, and in each case as amended
(including any amendment and restatement thereof), modified, extended,
deferred, renewed, refunded, substituted or replaced or refinanced from time to
time, including any agreement extending the maturity of, refinancing, replacing
or otherwise restructuring (including increasing the amount of available
borrowings thereunder or adding Subsidiaries of GroupMAC as additional
borrowers or guarantors thereunder) all or any portion of the Indebtedness
under such agreement or any successor or replacement agreement and whether by
the same or any other agents, creditor, lender or group of creditors or
lenders.
 
"Permitted Indebtedness" means, without duplication:
 
    (a) Indebtedness of GroupMAC and the Guarantors evidenced by up to $130
  million principal amount of the Notes and the Guarantees;
 
    (b) Indebtedness of GroupMAC and Restricted Subsidiaries under one or
  more Credit Facilities in an aggregate principal amount at any one time
  outstanding not to exceed $300 million less any amounts permanently repaid
  in accordance with the covenant described under "--Certain Covenants--
  Disposition of Proceeds of Asset Sales";
 
    (c) Indebtedness of GroupMAC or any Restricted Subsidiary outstanding on
  the Issue Date;
 
    (d) Indebtedness of GroupMAC or any Restricted Subsidiary of GroupMAC
  incurred in respect of bankers' acceptances and letters of credit in the
  ordinary course of business, including Indebtedness evidenced by letters of
  credit issued in the ordinary course of business to support the insurance
  or self-insurance obligations of GroupMAC or any of its Restricted
  Subsidiaries (including to secure workers' compensation and other similar
  insurance coverages), in an aggregate amount not to exceed $30.0 million at
  any time, but excluding letters of credit issued in respect of or to secure
  money borrowed;
 
    (e) (1) Interest Rate Protection Obligations of GroupMAC or a Guarantor
  covering Indebtedness of GroupMAC or a Guarantor and (2) Interest Rate
  Protection Obligations of any Restricted Subsidiary covering Permitted
  Indebtedness or Acquired
 
                                       75
<PAGE>
 
  Indebtedness of such Restricted Subsidiary; provided that, in the case of
  either clause (1) or (2), (x) any Indebtedness to which any such Interest
  Rate Protection Obligations correspond bears interest at fluctuating
  interest rates and is otherwise permitted to be incurred under the
  "Limitation on Indebtedness" covenant and (y) the notional principal amount
  of any such Interest Rate Protection Obligations that exceeds the principal
  amount of the Indebtedness to which such Interest Rate Protection
  Obligations relate shall not constitute Permitted Indebtedness;
 
    (f) Indebtedness of a Restricted Subsidiary owed to and held by GroupMAC
  or another Restricted Subsidiary, except that (1) any transfer of such
  Indebtedness by GroupMAC or a Restricted Subsidiary (other than to GroupMAC
  or another Restricted Subsidiary), (2) the sale, transfer or other
  disposition by GroupMAC or any Restricted Subsidiary of GroupMAC of Capital
  Stock of a Restricted Subsidiary which is owed Indebtedness of another
  Restricted Subsidiary such that it shall no longer be a Restricted
  Subsidiary and (3) the designation of a Restricted Subsidiary which is owed
  Indebtedness of another Restricted Subsidiary as an Unrestricted Subsidiary
  shall, in each case, be an incurrence of Indebtedness by such Restricted
  Subsidiary subject to the other provisions of the Indenture;
 
    (g) Indebtedness of GroupMAC owed to and held by a Restricted Subsidiary
  which is unsecured and subordinated in right of payment to the payment and
  performance of the obligations of GroupMAC under the Indenture and the
  Notes, except that (1) any transfer of such Indebtedness by a Restricted
  Subsidiary (other than to another Restricted Subsidiary) and (2) the sale,
  transfer or other disposition by GroupMAC or any Restricted Subsidiary of
  GroupMAC of Capital Stock of a Restricted Subsidiary which is owed
  Indebtedness of GroupMAC such that it shall no longer be a Restricted
  Subsidiary and (3) the designation of a Restricted Subsidiary which is owed
  Indebtedness of GroupMAC shall, in each case, be an incurrence of
  Indebtedness by GroupMAC, subject to the other provisions of the Indenture;
 
    (h) Indebtedness arising from the honoring by a bank or other financial
  institution of a check, draft or similar instrument inadvertently (except
  in the case of daylight overdrafts) drawn against insufficient funds in the
  ordinary course of business; provided, however, that such Indebtedness is
  extinguished within five business days of incurrence;
 
    (i) Indebtedness of GroupMAC or any Restricted Subsidiary, in addition to
  that described in clauses (a) through (h) of this definition, in an
  aggregate principal amount outstanding at any time not to exceed $20.0
  million;
 
    (j) (1) Indebtedness of GroupMAC the proceeds of which are used solely to
  refinance (whether by amendment, renewal, extension or refunding )
  Indebtedness of GroupMAC or any of its Restricted Subsidiaries incurred
  pursuant to the Consolidated Fixed Charge Coverage Ratio test of the
  proviso of the "Limitation on Indebtedness" covenant or clauses (a), (c) or
  (j) of this definition and (2) Indebtedness of any Restricted Subsidiary of
  GroupMAC the proceeds of which are used solely to refinance (whether by
  amendment, renewal,
                                       76
<PAGE>
 
  extension or refunding) Indebtedness of such Restricted Subsidiary incurred
  pursuant to the Consolidated Fixed Charge Coverage Ratio test of the
  proviso of the "Limitation on Indebtedness" covenant or clauses (a), (c) or
  (j) of this definition (in each case other than the Indebtedness to be
  refinanced, redeemed or retired as described under "Use of Proceeds"
  herein); provided, however, that (x) the principal amount of Indebtedness
  incurred pursuant to this clause (j) (or, if such Indebtedness provides for
  an amount less than the principal amount thereof to be due and payable upon
  a declaration of acceleration of the maturity thereof, the original issue
  price of such Indebtedness) shall not exceed the sum of principal amount of
  Indebtedness so refinanced, plus the amount of any premium required to be
  paid in connection with such refinancing pursuant to the terms of such
  Indebtedness or the amount of any premium reasonably determined by GroupMAC
  as necessary to accomplish such refinancing by means of a tender offer or
  privately negotiated purchase, plus the amount of expenses in connection
  therewith, and (y) in the case of Indebtedness incurred by GroupMAC
  pursuant to this clause (j) to refinance Subordinated Indebtedness, such
  Indebtedness (A) has no scheduled principal payment prior to the 91st day
  after the Maturity Date, (B) has an Average Life to Stated Maturity greater
  than the remaining Average Life to Stated Maturity of the Notes and (C) is
  subordinated to the Notes in the same manner and to the same extent that
  the Subordinated Indebtedness being refinanced is subordinated to the
  Notes;
 
    (k) Indebtedness arising from agreements of GroupMAC or any Restricted
  Subsidiary providing for indemnification, adjustment or holdback of
  purchase price or similar obligations, in each case, incurred or assumed in
  connection with the acquisition or disposition of any business, assets or a
  Subsidiary, other than guarantees of Indebtedness incurred by any person
  acquiring all or any portion of such business, assets or Subsidiary for the
  purpose of financing such acquisition; and
 
 
    (l) Guarantees by GroupMAC or guarantees by a Guarantor of Indebtedness
  that was permitted to be incurred under the Indenture.
 
  For purposes of determining compliance with the "Limitation on Indebtedness"
covenant described in the preceding paragraph, (A) in the event that an item of
Indebtedness meets the criteria of more than one of the types of Indebtedness
described in the clauses of the preceding paragraph, GroupMAC, in its sole
discretion, shall classify such item of Indebtedness and only be required to
include the amount and type of such Indebtedness in one such clause, and (B)
the amount of Indebtedness issued at a price that is less than the principal
amount thereof shall be equal to the amount of the liability in respect thereof
determined in conformity with GAAP.
 
  "Permitted Investments" means any of the following: (1) Investments in
GroupMAC or in a Restricted Subsidiary; (2) Investments in another person, if
as a result of such Investment (A) such other person becomes a Restricted
Subsidiary or (B) such other person is merged or consolidated with or into, or
transfers or conveys all or
 
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<PAGE>
 
substantially all of its assets to GroupMAC or a Restricted Subsidiary; (3)
Investments representing Capital Stock or obligations issued to GroupMAC or any
of its Restricted Subsidiaries in settlement of claims against any other person
by reason of a composition or readjustment of debt or a reorganization of any
debtor of GroupMAC or such Restricted Subsidiary; (4) Investments in Interest
Rate Protection Agreements on commercially reasonable terms entered into by
GroupMAC or any of its Restricted Subsidiaries in the ordinary course of
business in connection with the operations of the business of GroupMAC or its
Restricted Subsidiaries to hedge against fluctuations in interest rates on its
outstanding Indebtedness; (5) Investments in the Notes; (6) Investments in Cash
Equivalents; (7) Investments acquired by GroupMAC or any Restricted Subsidiary
in connection with an Asset Sale permitted under "--Certain Covenants--
Disposition of Proceeds of Asset Sales" to the extent such Investments are non-
cash proceeds as permitted under such covenant; (8) advances to employees or
officers of GroupMAC or any Restricted Subsidiary in the ordinary course of
business; (9) any Investment to the extent that the consideration therefor is
Capital Stock (other than Redeemable Capital Stock) of GroupMAC; (10) any
loans, payments or other advances made pursuant to any employee benefit plans
(including plans for the benefit of directors) or employment agreements or
other compensation arrangements, in each case as approved by the Board of
Directors of GroupMAC in its good faith judgment, not to exceed $1.0 million at
any one time outstanding; and (11) other Investments not to exceed $25.0
million at any time outstanding.
 
  "Permitted Liens" means the following types of Liens:
 
    (a) any Lien existing as of the date of the Indenture;
 
    (b) Liens securing Indebtedness under the New Credit Agreement;
 
    (c) any Lien securing Acquired Indebtedness created prior to (and not
  created in connection with, or in contemplation of) the incurrence of such
  Indebtedness by GroupMAC or any Restricted Subsidiary, if such Lien does
  not attach to any property or assets of GroupMAC or any Restricted
  Subsidiary other than the property or assets subject to the Lien prior to
  such incurrence;
 
    (d) Liens in favor of GroupMAC or a Restricted Subsidiary;
 
    (e) Liens on and pledges of the Capital Stock of any Unrestricted
  Subsidiary securing any Indebtedness of such Unrestricted Subsidiary;
 
    (f) Liens for taxes, assessments or governmental charges or claims either
  (1) not delinquent or (2) contested in good faith by appropriate
  proceedings and as to which GroupMAC or its Restricted Subsidiaries shall
  have set aside on its books such reserves as may be required pursuant to
  GAAP;
 
    (g) statutory Liens of landlords and Liens of carriers, warehousemen,
  mechanics, suppliers, materialmen, repairmen and other Liens imposed by law
  incurred in the ordinary course of business for sums not yet delinquent or
  being contested in good faith, if such reserve or other appropriate
  provision, if any, as shall be required by GAAP shall have been made in
  respect thereof;
 
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<PAGE>
 
    (h) Liens incurred or deposits made in the ordinary course of business in
  connection with workers' compensation, unemployment insurance and other
  types of social security, or to secure the performance of tenders,
  statutory obligations, surety and appeal bonds, bids, leases, government
  contracts, contracts for utilities, performance and return-of-money bonds
  and other similar obligations (exclusive of obligations for the payment of
  borrowed money);
 
    (i) judgment Liens not giving rise to an Event of Default so long as such
  Lien is adequately bonded and any appropriate legal proceedings which may
  have been duly initiated for the review of such judgment shall not have
  been finally terminated or the period within which such proceedings may be
  initiated shall not have expired;
 
    (j) easements, rights-of-way, zoning restrictions and other similar
  charges or encumbrances in respect of real property not interfering in any
  material respect with the ordinary conduct of the business of GroupMAC or
  any of its Restricted Subsidiaries;
 
    (k) any interest or title of a lessor under any Capitalized Lease
  Obligation or operating lease;
 
    (l) purchase money Liens to finance property or assets of GroupMAC or any
  Restricted Subsidiary of GroupMAC acquired in the ordinary course of
  business; provided, however, that (1) the related purchase money
  Indebtedness shall not be secured by any property or assets of GroupMAC or
  any Restricted Subsidiary other than the property and assets so acquired
  and (2) the Lien securing such Indebtedness shall be created within 90 days
  of such acquisition;
 
    (m) Liens securing reimbursement obligations with respect to commercial
  letters of credit which encumber documents and other property relating to
  such letters of credit and products and proceeds thereof;
 
    (n) Liens securing refinancing Indebtedness permitted under clause (j) of
  the definition of "Permitted Indebtedness"; provided such Liens are not
  secured by any property or assets of GroupMAC or any Restricted Subsidiary
  other than the property or assets securing such refinanced Indebtedness;
 
    (o) Liens incurred in the ordinary course of business by GroupMAC or any
  Restricted Subsidiary with respect to obligations that do not exceed $5
  million at any time outstanding;
 
    (p) Liens encumbering deposits made to secure obligations arising from
  statutory, regulatory, contractual or warranty requirements of GroupMAC or
  any of its Restricted Subsidiaries, including rights of offset and set-off;
 
    (q) Liens securing Interest Rate Protection Obligations which Interest
  Rate Protection Obligations relate to Indebtedness that is secured by Liens
  otherwise permitted under this Indenture; and
 
    (r) Liens on property or assets of a Foreign Restricted Subsidiary
  securing Indebtedness of Foreign Restricted Subsidiaries.
 
  "person" means any individual, corporation, partnership (general or limited),
limited liability company, joint venture, association, joint-stock company,
trust, unincorporated organization or government or any agency or political
subdivision thereof.
 
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<PAGE>
 
  "Preferred Stock," as applied to any person, means Capital Stock of any class
or series (however designated) which is preferred as to the payment of
dividends or distributions, or as to the distribution of assets upon any
voluntary or involuntary liquidation or dissolution of such person, over shares
of Capital Stock of any other class or series of such person.
 
  "Redeemable Capital Stock" means any class or series of Capital Stock that,
either by its terms, by the terms of any security into which it is convertible
or exchangeable or by contract or otherwise, is or upon the happening of an
event or passage of time would be required to be redeemed prior to the Maturity
Date or is redeemable at the option of the holder thereof at any time prior to
the Maturity Date, or is convertible into or exchangeable for debt securities
at any time prior to the Maturity Date; provided that Capital Stock will not
constitute Redeemable Capital Stock solely because the holders thereof have the
right to require GroupMAC to repurchase or redeem such Capital Stock upon the
occurrence of a Change of Control or an Asset Sale.
 
  "Representative" means the agent in respect of the New Credit Agreement.
 
  "Restricted Subsidiary" means any Subsidiary of GroupMAC that is not an
Unrestricted Subsidiary.
 
  "Significant Subsidiary" of any person means a Restricted Subsidiary of such
person which would be a significant subsidiary of such person as of such date
as determined in accordance with the definition in Rule 1-02(w) of Article 1 of
Regulation S-X promulgated by the Commission and as in effect on the date of
the Indenture.
 
  "Stated Maturity" means, when used with respect to any Note or any
installment of interest thereon, the date specified in such Note as the fixed
date on which the principal of such Note or such installment of interest is due
and payable, and when used with respect to any other Indebtedness, means the
date specified in the instrument governing such Indebtedness as the fixed date
on which the principal of such Indebtedness, or any installment of interest
thereon, is due and payable (including as a result of the exercise of any put
option contained in such instrument).
 
  "Subordinated Indebtedness" means, with respect to GroupMAC, Indebtedness of
GroupMAC which is expressly subordinated in right of payment to the Notes.
 
  "Subsidiary" means, with respect to any person, (1) a corporation a majority
of whose Voting Stock is at the time, directly or indirectly, owned by such
person, by one or more Subsidiaries of such person or by such person and one or
more Subsidiaries thereof and (2) any other person (other than a corporation),
including, without limitation, a partnership, limited liability company,
business trust or joint venture, in which such person, one or more Subsidiaries
thereof or such person and one or more Subsidiaries thereof, directly or
indirectly, at the date of determination thereof, has at least majority
ownership interest entitled to vote in the election of directors, managers or
trustees thereof (or other person performing similar functions). For purposes
of this definition, any directors' qualifying shares or investments by foreign
nationals mandated by applicable law shall be disregarded in determining the
ownership of a Subsidiary.
 
  "Unrestricted Subsidiary" means each Subsidiary of GroupMAC designated as
such
 
                                       80
<PAGE>
 
pursuant to and in compliance with the covenant described under "--Certain
Covenants--Limitation on Designations of Unrestricted Subsidiaries."
 
  "Voting Stock" means any class or classes of Capital Stock pursuant to which
the holders thereof have the general voting power under ordinary circumstances
to elect at least a majority of the board of directors, managers or trustees of
any person (irrespective of whether or not, at the time, stock of any other
class or classes shall have, or might have, voting power by reason of the
happening of any contingency).
 
  "Wholly-Owned Restricted Subsidiary" means any Restricted Subsidiary of
GroupMAC of which 100% of the outstanding Capital Stock is owned by GroupMAC or
another Wholly-Owned Restricted Subsidiary of GroupMAC or both. For purposes of
this definition, any directors' qualifying shares or investments by foreign
nationals mandated by applicable law shall be disregarded in determining the
ownership of a Subsidiary.
 
Book-Entry; Delivery and Form
 
  Notes that were offered and sold originally to QIBs in reliance on Rule 144A
under the Securities Act were represented by a single, permanent global note in
definitive, fully registered book-entry form (a "Rule 144A Global Security")
which was registered in the name of a nominee of DTC and deposited on behalf of
purchasers of the Notes represented thereby with a custodian for DTC for credit
to the respective accounts of the purchasers (or to such other accounts as they
may direct) at DTC.
 
  Notes that were offered and sold originally in reliance on Regulation S were
initially be represented by a single, permanent global note in definitive,
fully registered book-entry form (the "Regulation S Global Security") which was
registered in the name of Cede & Co., as nominee of DTC, and deposited on
behalf of the purchasers of the Notes represented thereby with a custodian for
DTC for credit to the respective accounts of the purchasers or to such other
accounts as they may direct at the Euroclear System ("Euroclear") or Cedel
Bank, societe anonyme ("Cedel"). Prior to the 40th day after the later of the
commencement of the Offering and the Issue Date, interests in the Regulation S
Global Notes were held only through Euroclear or Cedel.
 
  The Global Securities. We expect that, pursuant to procedures established by
DTC, ownership of the Rule 144A Global Security and the Regulation S Global
Security (together, the "Global Securities") will be shown on, and the transfer
of ownership thereof will be effected only through, records maintained by DTC
or its nominee with respect to interests of persons who have accounts with DTC
("Participants") and the records of Participants (with respect to interests of
persons other than Participants).
 
  So long as DTC or its nominee is the registered owner or holder of any of the
Notes, DTC or such nominee will be considered the sole owner or holder of such
Notes represented by the Global Securities for all purposes under the Indenture
and under the Notes represented thereby. No beneficial owner of an interest in
the Global Securities will be able to transfer such interest except in
accordance with the applicable procedures of DTC in addition to those provided
for under the Indenture. The laws of some states require that certain persons
take physical delivery in definitive form of securities that they own.
Consequently, the ability to transfer
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<PAGE>
 
beneficial interest in a Global Security to such persons will be impaired to
that extent. Because DTC can act only on behalf of Participants, which in turn
act on behalf of Indirect Participants (as defined herein), the ability of a
person having beneficial interests in a Global Security to pledge such
interests to persons or entities that do not participate in the DTC system, or
otherwise take actions in respect of such interests, may be impaired by the
lack of a physical certificate evidencing such interests.
 
  Payments of the principal of, premium, if any, and interest on the Notes
represented by the Global Securities will be made to DTC or its nominee, as the
case may be, as the registered owner thereof. Neither we, the Trustee nor any
paying agent under the Indenture will have any responsibility or liability for
any aspect of the records relating to or payments made on account of beneficial
ownership interests in the Global Securities or for maintaining, supervising or
reviewing any records relating to such beneficial ownership interest.
 
  We expect that DTC or its nominee, upon receipt of any payment of the
principal of, premium, if any, and interest on the Notes represented by the
Global Securities, will credit Participants' accounts with payments in amounts
proportionate to their respective beneficial interests in the Global Securities
as shown in the records of DTC or its nominee. We also expect that payments by
Participants to owners of beneficial interests in the Global Securities held
through such Participants will be governed by standing instructions and
customary practice as is now the case with securities held for the accounts of
customers registered in the names of nominees for such customers. Such payment
will be the responsibility of such Participants and not that of GroupMAC or the
Trustee.
 
  Any beneficial interest in one of the Global Securities that is transferred
to a person who takes delivery in the form of an interest in the other Global
Security will, upon transfer, cease to be an interest in such Global Security
and, accordingly, will thereafter be subject to all transfer restrictions, if
any, and other procedures applicable to beneficial interests in such other
Global Security with respect to the applicable Notes for as long as it remains
such an interest.
 
  DTC has advised us that DTC will take any action permitted to be taken by a
Holder of Notes, including the presentation of Notes for exchange as described
below, only at the direction of one or more Participants to whose account the
DTC interests in the Global Securities are credited and only in respect of the
aggregate principal amount as to which such Participant or Participants has or
have given such direction. However, if there is an Event of Default under the
Indenture, DTC will exchange the Global Securities for Certificated Securities,
which it will distribute to its Participants and which will be legended.
 
  DTC has advised us as follows: DTC is a limited purpose trust company
organized under the laws of the State of New York, a member of the Federal
Reserve System, a "clearing corporation" within the meaning of the Uniform
Commercial Code and a "clearing agency" registered pursuant to the provisions
of Section 17A of the Exchange Act. DTC was created to hold securities for its
Participants and facilitate the clearance and settlement of securities
transactions between Participants through electronic book-entry changes in
accounts of its Participants, thereby eliminating the need for physical
movement of certificates. Participants include securities brokers and
 
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<PAGE>
 
dealers, banks, trust companies and clearing corporations and certain other
organizations. Indirect access to the DTC system is available to others such as
banks, brokers, dealers and trust companies that clear through or maintain a
custodial relationship with a Participant, either directly or indirectly
("Indirect Participants"). The rules applicable to DTC and its participants are
on file with the SEC.
 
  DTC has further advised us that management of DTC is aware that some computer
applications, systems, and the like for processing data that are dependent upon
calendar dates, including dates before, on, and after January 1, 2000, may
encounter "Year 2000 problems." DTC has informed its participants and other
members of the financial community that it has developed and is implementing a
program so that its systems, as the same relate to the timely payment of
distributions (including principal and interest payments) to security holders,
book-entity deliveries, and settlement of trades within DTC, continue to
function appropriately. This program includes a technical assessment and a
remediation plan, each of which DTC reports is complete. Additionally, DTC's
plan includes a testing phase, which DTC expects to be completed within
appropriate time frames.
 
  However, DTC's ability to perform properly its services is also dependent
upon other parties, including but not limited to issuers and their agents, as
well as the DTC's direct and indirect participants and third party vendors from
whom DTC licenses software and hardware, and third party vendors on whom DTC
relies for information or the provision of services, including
telecommunication and electrical utility service providers, among others. DTC
has informed the industry that it is contacting and will continue to contact
third party vendors from whom DTC acquires services to: (1) impress upon them
the importance of such services being Year 2000 compliant; and (2) determine
the extent of their efforts for Year 2000 remediation and, as appropriate,
testing of their services. In addition, DTC is in the process of developing
such contingency plans as it deems appropriate.
 
  According to DTC, the foregoing information with respect to DTC has been
provided to the industry for informational purposes only and is not intended to
serve as a representation, warranty, or contract modification of any kind.
 
  Although DTC is expected to follow the foregoing procedures in order to
facilitate transfers of interests in the Global Securities among Participants
of DTC, it is under no obligation to perform such procedures, and such
procedures may be discontinued at any time. Neither we nor the Trustee will
have any responsibility for the performance by DTC or its respective direct or
indirect participants of their respective obligations under the rules and
procedures governing their operations.
 
  Certificated Securities. Interests in the Global Securities will be exchanged
for Certificated Securities if (1) DTC notifies GroupMAC that it is unwilling
or unable to continue as depositary for the Global Securities, or DTC ceases to
be a "Clearing Agency" registered under the Exchange Act, and a successor
depositary is not appointed by GroupMAC within 90 days, or (2) an Event of
Default has occurred and is continuing with respect to the Notes. Upon the
occurrence of any of the events described in the preceding sentence, GroupMAC
will cause the appropriate Certificated Securities to be delivered.
 
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<PAGE>
 
                   CERTAIN FEDERAL INCOME TAX CONSIDERATIONS
 
  The following discussion summarizes certain material United States federal
income tax consequences relevant to the purchase, ownership and disposition of
the Notes and reflects the opinion provided by Bracewell & Patterson, L.L.P.,
counsel to GroupMAC, as to these matters. This discussion is for general
information only and does not address all aspects of federal income taxation
that may be relevant to particular investors in light of their personal
investment circumstances, nor does it address the federal income tax
consequences which may be relevant to certain types of investors subject to
special treatment under the federal income tax laws (for example, certain
financial institutions, insurance companies, tax-exempt entities, broker-
dealers, and taxpayers subject to the alternative minimum tax). In addition,
this discussion does not discuss any aspects of state, local, or foreign tax
laws. This discussion assumes that investors will hold their Notes as "capital
assets" (generally, property held for investment), within the meaning of
Section 1221 of the Internal Revenue Code, and not as part of an integrated
transaction (for example, a hedge, straddle or conversion transaction).
 
  No ruling from the Internal Revenue Service (the "IRS") will be requested
with respect to any of the matters discussed herein. There can be no assurance
that the IRS will not take different positions concerning the matters discussed
below and that such positions would not be sustained. BECAUSE INDIVIDUAL
CIRCUMSTANCES MAY DIFFER, EACH HOLDER OF NOTES SHOULD CONSULT HIS OR HER OWN
TAX ADVISOR WITH RESPECT TO HIS OR HER PARTICULAR TAX SITUATION AND AS TO ANY
FEDERAL, FOREIGN, STATE, LOCAL OR OTHER TAX CONSIDERATIONS (INCLUDING ANY
POSSIBLE CHANGES IN TAX LAW) AFFECTING THE PURCHASE, OWNERSHIP AND DISPOSITION
OF THE NOTES.
 
  This discussion is based on the provisions of the Code, existing and proposed
Treasury regulations promulgated thereunder (the "Regulations"), judicial
authority interpreting the Internal Revenue Code, and current administrative
rulings and pronouncements of the IRS now in effect, all of which are subject
to change at any time by legislative, judicial or administrative action. Any
such changes may be retroactively applied in a manner that could result in
federal income tax consequences different from those discussed below and could
adversely affect a holder of Notes.
 
Exchange of Original Notes for Exchange Notes
 
  The exchange of Original Notes for Exchange Notes should not constitute a
significant modification of the terms of the Original Notes, and, accordingly,
will not be treated as a taxable exchange for United States federal income tax
purposes. Consequently, no gain or loss will be recognized by holders of
Original Notes upon receipt of the Exchange Notes, and ownership of the
Exchange Notes will be considered a continuation of ownership of the Original
Notes. GroupMAC will take this position and intends to report the transaction
in this manner for federal income tax purposes. For purposes of determining
gain or loss upon the subsequent sale or exchange of the Exchange Notes, a
holder will have the same adjusted basis in an Exchange Note as the holder had
in the Original Note exchanged therefor. In addition, a holder's
 
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<PAGE>
 
holding period for an Exchange Note will include the holding period for the
Original Note exchanged therefor.
 
  The remaining summary of federal income considerations relates to owning and
disposing of Exchange Notes, and also applies to holders of Original Notes who
do not accept the Exchange Offer.
 
United States Federal Income Taxation of United States Holders
 
  As used herein, the term "United States Holder" means a holder of a Note that
is for United States federal income tax purposes (1) an individual citizen or
resident of the United States, (2) a corporation, partnership or other entity
created or organized in or under the laws of the United States or any political
subdivision thereof, (3) an estate the income of which is subject to United
States federal income taxation regardless of source, or (4) a trust whose
administration is subject to the primary supervision of a United States court
and which has one or more United States persons who have the authority to
control all substantial decisions of the trust.
 
  Stated Interest. Stated interest on the Notes will generally be taxable to a
United States Holder as ordinary income from domestic sources at the time it is
paid or accrued in accordance with the United States Holder's method of
accounting for tax purposes.
 
  Amortizable Bond Premium. If a United States Holder purchases a Note for an
amount that is greater than the sum of all payments payable on the Note after
the purchase date, other than qualified stated interest, such United States
Holder will be considered to have purchased such Note with "amortizable bond
premium" equal in amount to such excess. A United States Holder may elect to
amortize such bond premium over the remaining term of such Note (or if it
results in a smaller amount of amortizable bond premium, until an earlier call
date, and in such case by reference to the amount payable on that date).
 
  Under Regulations issued December 30, 1997, if bond premium is amortized, the
amount of interest on the Note included in the United States Holder's income
for each accrual period ending on an interest payment date or on the stated
maturity of the Note, as the case may be, will be reduced by a portion of the
bond premium allocable to such accrual period based on the Note's yield to
maturity (or earlier call date, if reference to such call date produces a
smaller amount of amortizable bond premium). If the amortizable bond premium
allocable to such accrual period exceeds the amount of interest allocable to
such accrual period, such excess would be allowed as a deduction for such
accrual period, but only to the extent of the United States Holder's prior
inclusion in income of interest payments on the Note. Any excess above such
prior interest inclusions is generally carried forward to the next accrual
period. A United States Holder who elects to amortize bond premium must reduce
such United States Holder's tax basis in the Notes as described under "--
Disposition of Notes." If such an election to amortize bond premium is not
made, a United States Holder must include the full amount of each interest
payment on the Note in income in accordance with its regular method of
accounting and will receive a tax benefit from the bond premium only in
computing such United States Holder's gain or loss upon disposition of the
Note.
 
  An election to amortize bond premium will apply to all taxable debt
obligations then
 
                                       85
<PAGE>
 
held or subsequently acquired by the electing United States Holder on or after
the first day of the first taxable year to which the election applies and may
not be revoked without the consent of the IRS. A United States Holder should
consult with such United States Holder's tax advisor with respect to the
general applicability of the amortizable bond premium rules of Section 171 of
the Internal Revenue Code to such United States Holder, and whether such United
States Holder should make an election under these rules.
 
  Market Discount. If a United States Holder purchases a Note for an amount
that is less than its stated redemption price at maturity (i.e., the sum of all
payments on the Note other than stated interest payments), the amount of the
difference will be treated as "market discount" for federal income tax
purposes, unless such difference is less than a de minimis amount as specified
by the Internal Revenue Code. Under the market discount rules, a United States
Holder will be required to treat any principal payment on, or any gain on the
sale, exchange, retirement or other disposition of a Note as ordinary income to
the extent of the market discount which has not previously been included in
income and is treated as having accrued on such Note at the time of such
payment or disposition. In addition, the United States Holder may be required
to defer, until maturity of the Note or its earlier disposition in a taxable
transaction, the deduction of all or a portion of the interest expense on any
indebtedness incurred or maintained to purchase or carry such Note.
 
  The Notes provide for optional redemption and (in the case of a Change in
Control) mandatory offers to purchase, in whole or in part, prior to maturity.
If the Notes were redeemed, a United States Holder generally would be required
to include in gross income as ordinary income the portion of the gain
recognized on the redemption attributable to accrued market discount, if any.
 
  Any market discount will be considered to accrue ratably during the period
from the date of acquisition to the maturity date of the Notes, unless the
United States Holder elects to accrue market discount on a constant interest
method. A United States Holder of a Note may elect to include market discount
in income currently as it accrues (under either a ratable or constant interest
method). This election to include currently, once made, applies to all market
discount obligations acquired in or after the first taxable year to which the
election applies and may not be revoked without the consent of the IRS. If a
United States Holder of Notes makes such an election, the foregoing rules with
respect to the recognition of ordinary income on sales and other dispositions
of instruments, and with respect to the deferral of interest deductions
incurred or maintained to purchase or carry such Notes, would not apply.
 
  Disposition of Notes. Upon the sale, exchange, retirement, redemption or
other disposition of a Note, a United States Holder will recognize taxable gain
or loss equal to the difference between (1) the amount of cash and the fair
market value of property received in exchange therefor (except to the extent
such amount is attributable to accrued but unpaid interest, which amount will
generally be taxable as ordinary income) and (2) the United States Holder's
adjusted tax basis in the Note. A United States Holder's adjusted tax basis in
a Note will generally equal the United States Holder's purchase price for such
Note, increased by any market discount previously included in income by the
United States Holder and decreased by any principal payments received by the
United States Holder, and any amortizable
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<PAGE>
 
bond premium deducted over the term of the Note. Any gain or loss recognized on
the sale, exchange, retirement or other disposition of a Note will generally be
capital gain or loss (except to the extent of any accrued market discount).
Under recently enacted legislation, capital gains of individuals derived in
respect of capital assets held for more than one year are eligible for reduced
rates of taxation which may vary depending upon the holding period of such
capital assets. The deduction of capital losses is subject to certain
limitations. A United States Holder should consult such United States Holder's
tax advisor regarding the treatment of capital gains or losses.
 
  Backup Withholding. Certain non-corporate United States Holders of Notes may
be subject to backup withholding at the rate of 31% with respect to interest
payments on the Notes and cash payments received in certain circumstances upon
the disposition of such Notes. Generally, backup withholding is applied only
when the taxpayer (1) fails to furnish or certify its correct taxpayer
identification number to the payor in the manner required, (2) is notified by
the IRS that it has failed to report payments of interest and dividends
properly, or (3) under certain circumstances, fails to certify that it has not
been notified by the IRS that it is subject to backup withholding for failure
to report interest and dividend payments. Any amounts withheld under the backup
withholding rules will be allowed as a refund or credit against a United States
Holder's United States federal income tax liability, provided that such United
States Holder furnished the required information to the IRS.
 
United States Federal Income Taxation of Non-United States Holders
 
  This section discusses certain special rules applicable to a holder of Notes
that is a Non-United States Holder. For purposes of this discussion, a "Non-
United States Holder" means a holder of Notes that is not (1) an individual
citizen or resident of the United States, (2) a corporation, partnership or
other entity created or organized in or under the laws of the United States or
any political subdivision thereof, (3) an estate the income of which is subject
to United States federal income taxation regardless of source, or (4) a trust
whose administration is subject to the primary supervision of a United States
court and which has one or more United States persons who have the authority to
control all substantial decisions of the trust.
 
  Receipt of Stated Interest by Non-United States Holder. Subject to the
discussion of backup withholding set forth below, payments of interest
(including original issue discount) to a Non-United States Holder who is the
beneficial owner of a Note generally will not be subject to the 30% U.S.
withholding tax under the portfolio interest exemption of the Internal Revenue
Code; provided, that (1) beneficial owner of the Note does not actually or
constructively own 10% or more of the total combined voting power of all
classes of stock of GroupMAC entitled to vote within the meaning of Section
871(h)(3) of the Internal Revenue Code and the Regulations thereunder; (2) such
beneficial owner is not a controlled foreign corporation that is related to
GroupMAC through stock ownership; (3) such beneficial owner is not a bank whose
receipt of interest on a Note is described in Section 881(c)(3)(A) of the
Internal Revenue Code; and (4) such beneficial owner satisfies the
certification requirement (described generally below) set forth in Section
871(h) (in the case of individuals) or Section 881(c) (in the case of foreign
corporations) of the Internal Revenue Code and the Regulations thereunder.
                                       87
<PAGE>
 
  To satisfy the certification requirement referred to in (4) above, the
beneficial owner of a Note, or a financial institution holding the Note on
behalf of such owner, must provide, in accordance with specified procedures,
GroupMAC or its paying agent, as the case may be, with a statement to the
effect that the beneficial owner is a Non-United States Holder. Such
requirement generally will be met if (1) the beneficial owner provides such
beneficial owner's name and address, signs under penalties of perjury, and
certifies that such beneficial owner is a Non-United States Holder (which
certification may be made on IRS Form W-8 (or substitute Form W-8)) or (2) a
securities clearing organization, a bank or other financial institution holding
the Note on behalf of the beneficial owner certifies, under penalties of
perjury, that such statement has been received by it and furnishes GroupMAC or
its paying agent, as the case may be, with a copy thereof.
 
  If the Non-United States Holder cannot satisfy the requirements of the
"portfolio interest" exception described above, payments of premium, if any,
and interest made to Non-United States Holders with respect to the Notes will
be subject to a 30% United States withholding tax unless the beneficial owner
of a Note provides GroupMAC or its paying agent, as the case may be, with, and
keeps current (1) a properly executed IRS Form 1001 (or successor form)
claiming an exemption from United States withholding tax under a United States
income tax treaty, or (2) a properly executed IRS Form 4224 (or successor form)
claiming such premium and/or interest is exempt from United States withholding
tax because such premium and/or interest is effectively connected with the
conduct of a United States trade or business by the Non-United States Holder,
in which case the premium and/or interest will be subject to the United States
federal income tax on net income at the rates applicable to United States
persons generally (and with respect to corporate holders and under certain
circumstances, the 30% branch profits tax).
 
  The U.S. Treasury Department recently promulgated final regulations regarding
the withholding and information reporting rules discussed above. In general,
the final regulations do not significantly alter the substantive withholding
and information reporting requirements described above, but instead unify
current certification procedures and forms and clarify reliance standards. The
final regulations are generally effective for payments made after December 31,
1999, subject to certain transition rules. Non-United States Holders should
consult their tax advisors regarding the application of these rules to their
particular situations, the availability of an exemption therefrom and the
procedure for obtaining such an exemption, if available.
 
  Gain on Disposition of Notes. A Non-United States Holder will generally not
be subject to United States federal income tax with respect to gain recognized
on disposition of the Notes unless (1) the gain is effectively connected with a
trade or business of the Non-United States Holder in the United States, (2) in
the case of a Non-United States Holder that is an individual, such holder is
present in the United States for 183 or more days in the taxable year of the
disposition and certain other requirements are met, or (3) the Non-United
States Holder is subject to tax pursuant to provisions of the United States
federal income tax law applicable to certain United States expatriates.
 
  Information Reporting and Backup Withholding. In general, no United States
 
                                       88
<PAGE>
 
information reporting or backup withholding tax will be required with respect
to payments of principal or interest made by GroupMAC to Non-United States
Holders if the certification described above in (4) under "--Receipt of Stated
Interest by Non-United States Holder" has been received and the payor does not
have actual knowledge that the beneficial owner is a United States person.
 
  Payments of principal or interest to the beneficial owner of a Note by a
United States office of a custodian, nominee or agent, or the payment by a
United States office of a broker of the proceeds of a sale of the Note, is
subject to both backup withholding and information reporting unless the
beneficial owner certifies under penalties of perjury that such owner is a Non-
United States Holder or otherwise establishes an exemption.
 
  In general, backup withholding and information reporting will not apply if
payments on a Note are paid or collected by a foreign office of a custodian,
nominee, or other foreign agent on behalf of the beneficial owner of such Note,
or if a foreign office of a broker (as defined in applicable Regulations) pays
the proceeds of the sale of a Note to the owner thereof. If, however, such
nominee, custodian, agent or broker is, for United States federal income tax
purposes, a United States person, or a controlled foreign corporation, or a
foreign person 50% or more of whose gross income for certain periods is derived
from activities that are effectively connected with the conduct of a trade or
business in the United States, or, for taxable years beginning after December
31, 1999, a foreign partnership, in which one or more United States persons, in
the aggregate, own more than 50% of the income or capital interests in the
partnership or which is engaged in a trade or business in the United States,
such payments will not be subject to backup withholding, but will be subject to
information reporting unless (1) such nominee, custodian, agent or broker has
documentary evidence in its records that the beneficial owner is a Non-United
States Holder and certain other conditions are met, or (2) the beneficial owner
otherwise establishes an exemption, provided such broker does not have actual
knowledge that the payee is a United States person. Non-United States Holders
should consult their tax advisors regarding the application of these rules to
their particular situations, the availability of an exemption therefrom and the
procedure for obtaining such an exemption, if available.
 
  The Treasury Department has issued final Regulations regarding the backup
withholding and information reporting rules discussed above. In general, the
final Regulations, which are generally effective for payments made after
December 31, 1999, subject to certain transition rules, do not alter the
substantive withholding and information reporting requirements but instead
unify current forms and procedures.
 
  Any amounts withheld under backup withholding will be allowed as a credit
against such Non-United States Holder's United States federal income tax
liability and may entitle such holder to a refund, provided the required
information is furnished to the IRS.
 
                                 LEGAL MATTERS
 
  Certain legal matters with respect to the issuance and sale of the Notes
offered hereby will be passed upon for us by Bracewell & Patterson, L.L.P.,
Houston, Texas.
                                       89
<PAGE>
 
                                    EXPERTS
 
  The historical financial statements of Group Maintenance America Corp., Group
Maintenance America Corp. and Subsidiaries, Premex, Inc. and Subsidiary, Barr
Electric Corp., Atlantic Industrial Constructors, Inc., Romanoff Electric
Corp., Continental Electrical Construction Co., Trinity Contractors, Inc. and
Trinity Air Technologies, L.P., Stephen C. Pomeroy, Inc. and Air Systems, Inc.,
to the extent and for the periods indicated in their reports, have been
incorporated by reference herein in reliance upon the reports of KPMG LLP,
independent certified public accountants, incorporated by reference herein, and
upon the authority of said firm as experts in accounting and auditing.
                                       90
<PAGE>
 
                      WHERE YOU CAN FIND MORE INFORMATION
 
  Group Maintenance America Corp. files annual, quarterly and other reports,
proxy statements and other information with the SEC. Our current SEC filings
are available to the public over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file at the
SEC's public reference rooms in Washington, D.C., New York, New York and
Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information on the public reference rooms.
 
  Because our Common Stock is listed on the New York Stock Exchange, our
reports, proxy statements and other information can be reviewed and copied at
the office of that exchange at 20 Broad Street, New York, New York 10005.
 
  The SEC allows us to "incorporate by reference" the information we file with
them, which means that we can disclose important information to you by
referring you to those documents. The information incorporated by reference is
an important part of this offering memorandum, and information that we file
later with the SEC will automatically update and supersede this information. We
incorporate by reference the documents listed below and any future filings made
with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), until we sell all of the
Notes:
 
  1.  Our Annual Report on Form 10-K for the year ended December 31, 1998, as
      amended by Form 10-K/A; and
 
  2.  Our Current Reports on Form 8-K dated April 15, 1999, January 19, 1999,
      January 5, 1999, November 25, 1998, November 4, 1998, October 28, 1998,
      September 15, 1998, June 26, 1998 and May 22, 1998 and on Form 8-K/A
      dated January 19, 1999, December 22, 1998 (two reports were filed on such
      date and both reports are incorporated by reference), September 21, 1998
      and July 20, 1998 (two reports were filed on such date and both reports
      are incorporated by reference).
 
  You may request a copy of these filings (in most cases, without exhibits) at
no cost, by writing or telephoning us at the following address:
 
  Investor Relations
  Group Maintenance America Corp.
  8 Greenway Plaza, Suite 1500
  Houston, Texas 77046
  (713) 860-1000
 
                                       91
<PAGE>
 
 
 
                                    ANNEX A
 
                        GROUP MAINTENANCE AMERICA CORP.
                             LETTER OF TRANSMITTAL
<PAGE>
 
                             LETTER OF TRANSMITTAL
 
                            To Tender for Exchange
 
                   9 3/4% Senior Subordinated Notes due 2009
 
                                      of
 
                        GROUP MAINTENANCE AMERICA CORP.
 
              Pursuant to the Prospectus dated            , 1999
 
 
 THIS OFFER WILL EXPIRE AT 5:00 P.M., NEW YORK CITY TIME, ON [     ], 1999,
 UNLESS EXTENDED BY THE COMPANY IN ITS SOLE DISCRETION (THE "EXPIRATION
 DATE"). TENDERS OF NOTES MAY BE WITHDRAWN AT ANY TIME PRIOR TO THE
 EXPIRATION DATE.
 
 
                 The Exchange Agent for the Exchange Offer is:
 
                       State Street Bank & Trust Company
 
           By Mail:              By Facsimile:              By Hand:
 
  State Street Bank & Trust     (617) 664-5395      State Street Bank & Trust
           Company                                           Company
  Corporate Trust Department Confirm by Telephone: Corporate Trust Department
         P.O. Box 778
 Boston, Massachusetts 02102-   (617) 664-5587    Two International Place, 4th
             0078                                             Floor
      Attention:                                   Boston, Massachesetts 02110
                                                        Attention:
 
DELIVERY OF THIS LETTER OF TRANSMITTAL TO AN ADDRESS OTHER THAN AS SET FORTH
ABOVE OR TRANSMISSION OF INSTRUCTIONS VIA FACSIMILE TO A NUMBER OTHER THAN AS
LISTED ABOVE WILL NOT CONSTITUTE A VALID DELIVERY.
 
  HOLDERS WHO WISH TO BE ELIGIBLE TO RECEIVE EXCHANGE NOTES PURSUANT TO THE
EXCHANGE OFFER MUST VALIDLY TENDER (AND NOT WITHDRAW) THEIR ORIGINAL NOTES TO
THE EXCHANGE AGENT ON OR PRIOR TO THE EXPIRATION DATE.
 
  This Letter of Transmittal is to be used by holders ("Holders") of 9 3/4%
Senior Subordinated Notes due 2009 (the "Original Notes") of Group Maintenance
America Corp. (the "Company") if: (i) certificates representing Original Notes
are to be physically delivered to the Exchange Agent herewith by such Holders;
(ii) tender of Original Notes is to be made by book-entry transfer to the
Exchange Agent's account at The Depository Trust Company ("DTC") pursuant to
the procedures set forth under the caption "The Exchange Offer--Procedures for
Tendering Original Notes--Book-Entry Delivery Procedures" in the Prospectus
dated [     ], 1999 (the "Prospectus"); or (iii) tender of Original Notes is
to be made according to the guaranteed delivery procedures set forth under the
caption "The Exchange Offer--Procedures for Tendering Original Notes--
Guaranteed Delivery" in the Prospectus, and, in each case, instructions are
not being transmitted through the DTC Automated Tender Offer Program ("ATOP").
The undersigned hereby acknowledges receipt of the Prospectus. All capitalized
terms used herein and not defined shall have the meanings ascribed to them in
the Prospectus.
 
  Holders of Original Notes that are tendering by book-entry transfer to the
Exchange Agent's account at DTC can execute the tender through ATOP, for which
the transaction will be eligible. DTC participants that are accepting the
exchange offer as set forth in the Prospectus and this Letter of Transmittal
(together, the "Exchange Offer") must transmit their acceptance to DTC which
will edit and verify the acceptance and execute a book-entry delivery to the
Exchange Agent's account at DTC. DTC will then send an Agent's Message to the
Exchange Agent for its acceptance. Delivery of the Agent's Message by DTC will
satisfy the
 
                                      A-1
<PAGE>
 
terms of the Offer as to execution and delivery of a Letter of Transmittal by
the participant identified in the Agent's Message. DTC participants may also
accept the Exchange Offer by submitting a notice of guaranteed delivery through
ATOP.
 
  Delivery of documents to DTC does not constitute delivery to the Exchange
Agent.
 
  If a Holder desires to tender Original Notes pursuant to the Exchange Offer
and time will not permit this Letter of Transmittal, certificates representing
such Original Notes and all other required documents to reach the Exchange
Agent, or the procedures for book-entry transfer cannot be completed, on or
prior to the Expiration Date, then such Holder must tender such Original Notes
according to the guaranteed delivery procedures set forth under the caption
"The Exchange Offer--Procedures for Tendering Original Notes--Guaranteed
Delivery" in the Prospectus. See Instruction 2.
 
  The undersigned should complete, execute and deliver this Letter of
Transmittal to indicate the action the undersigned desires to take with respect
to the Exchange Offer.
 
 
                            TENDER OF ORIGINAL NOTES
- --------------------------------------------------------------------------------
 
 [_] CHECK HERE IF TENDERED ORIGINAL NOTES ARE ENCLOSED HEREWITH.
 
 [_] CHECK HERE IF TENDERED ORIGINAL NOTES ARE BEING DELIVERED BY BOOK-ENTRY
     TRANSFER MADE TO THE ACCOUNT MAINTAINED BY THE EXCHANGE AGENT WITH DTC AND
     COMPLETE THE FOLLOWING:
 
 Name of Tendering Institution:_______________________________________________
 
 Account Number:______________________________________________________________
 
 Transaction Code Number:_____________________________________________________
 
 [_] CHECK HERE IF TENDERED ORIGINAL NOTES ARE BEING DELIVERED PURSUANT TO A
     NOTICE OF GUARANTEED DELIVERY PREVIOUSLY SENT TO THE EXCHANGE AGENT AND
     COMPLETE THE FOLLOWING:
 
 Name(s) of Registered Holder(s):_____________________________________________
 
 Window Ticket Number (if any):_______________________________________________
 
 Date of Execution of Notice of Guaranteed Delivery:__________________________
 
 Name of Eligible Institution that Guaranteed Delivery:_______________________
 
 
                                      A-2
<PAGE>
 
  List below the Original Notes to which this Letter of Transmittal relates.
The name(s) and address(es) of the registered Holder(s) should be printed, if
not already printed below, exactly as they appear on the Original Notes
tendered hereby. The Original Notes and the principal amount of Original Notes
that the undersigned wishes to tender would be indicated in the appropriate
boxes. If the space provided is inadequate, list the certificate number(s) and
principal amount(s) on a separately executed schedule and affix the schedule to
this Letter of Transmittal.
 
 
                         DESCRIPTION OF ORIGINAL NOTES
<TABLE>
- ------------------------------------------------------
<CAPTION>
  Name(s) and
  Address(es)
      of
  Registered
   Holder(s)
    (Please
  fill in if                   Aggregate
  blank) See                   Principal    Principal
  Instruction   Certificate     Amount        Amount
      3.         Number(s)*  Represented**  Tendered**
- ------------------------------------------------------
- ------------------------------------------------------
- ------------------------------------------------------
- ------------------------------------------------------
- ------------------------------------------------------
- ------------------------------------------------------
- ------------------------------------------------------
  <S>           <C>          <C>           <C>
                Total
                Principal
                Amount of
                Original
                Notes
- ------------------------------------------------------
</TABLE>
  * Need not be completed by Holders tendering by book-entry transfer.
 ** Unless otherwise specified, the entire aggregate principal amount
    represented by the Original Notes described above will be deemed to be
    tendered. See Instruction 4.
 
 
                                      A-3
<PAGE>
 
                    NOTE: SIGNATURES MUST BE PROVIDED BELOW.
              PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY.
 
Ladies and Gentlemen:
 
  The undersigned hereby tenders to Group Maintenance America Corp. (the
"Company"), upon the terms and subject to the conditions set forth in its
Prospectus dated October 15, 1999 (the "Prospectus"), receipt of which is
hereby acknowledged, and in accordance with this Letter of Transmittal (which
together constitute the "Exchange Offer"), the principal amount of Original
Notes indicated in the foregoing table entitled "Description of Original Notes"
under the column heading "Principal Amount Tendered." The undersigned
represents that it is duly authorized to tender all of the Original Notes
tendered hereby which it holds for the account of beneficial owners of such
Original Notes ("Beneficial Owner(s)") and to make the representations and
statements set forth herein on behalf of such Beneficial Owner(s).
 
  Subject to, and effective upon, the acceptance for purchase of the principal
amount of Original Notes tendered herewith in accordance with the terms and
subject to the conditions of the Exchange Offer, the undersigned hereby sells,
assigns and transfers to, or upon the order of, the Company, all right, title
and interest in and to all of the Original Notes tendered hereby. The
undersigned hereby irrevocably constitutes and appoints the Exchange Agent the
true and lawful agent and attorney-in-fact of the undersigned (with full
knowledge that the Exchange Agent also acts as the agent of the Company) with
respect to such Original Notes, with full powers of substitution and revocation
(such power of attorney being deemed to be an irrevocable power coupled with an
interest) to (i) present such Original Notes and all evidences of transfer and
authenticity to, or transfer ownership of, such Original Notes on the account
books maintained by DTC to, or upon the order of, the Company, (ii) present
such Original Notes for transfer of ownership on the books of the Company, and
(iii) receive all benefits and otherwise exercise all rights of beneficial
ownership of such Original Notes, all in accordance with the terms and
conditions of the Exchange Offer as described in the Prospectus.
 
  By accepting the Exchange Offer, the undersigned hereby represents and
warrants that (1) the Exchange Notes to be acquired by the undersigned and any
Beneficial Owner(s) in connection with the Exchange Offer are being acquired by
the undersigned and any Beneficial Owner(s) in the ordinary course of business
of the undersigned and any Beneficial Owner(s), (2) the undersigned and each
Beneficial Owner are not participating, do not intend to participate, and have
no arrangement or understanding with any person to participate, in the
distribution of the Exchange Notes, (3) except as indicated below, neither the
undersigned nor any Beneficial Owner is an "affiliate," as defined in Rule 405
under the Securities Act of 1933, as amended (together with the rules and
regulations promulgated thereunder, the "Securities Act"), of the Company and
(4) the undersigned and each Beneficial Owner acknowledge and agree that (x)
any person participating in the Exchange Offer with the intention or for the
purpose of distributing the Exchange Notes must comply with the registration
and prospectus delivery requirements of the Securities Act in connection with a
secondary resale of the Exchange Notes acquired by such person with a
registration statement containing the selling securityholder information
required by Item 507 of Regulation S-K of the Securities and Exchange
Commission (the "Commission") and cannot rely on the interpretation of the
Staff of the Commission set forth in the no-action letters that are noted in
the section of the Prospectus entitled "The Exchange Offer--Registration
Rights" and (y) any broker-dealer that pursuant to the Exchange Offer receives
Exchange Notes for its own account in exchange for Original Notes which it
acquired for its own account as a result of market-making activities or other
trading activities must deliver a prospectus meeting the requirements of the
Securities Act in connection with any resale of such Exchange Notes. If the
undersigned is a broker-dealer that will receive Exchange Notes for its own
account in exchange for Original Notes that were acquired as the result of
market-making activities or other trading activities, it acknowledges that it
will deliver a prospectus in connection with any resale of such Exchange Notes.
By so acknowledging and by delivering a prospectus, a broker-dealer shall not
be deemed to admit that it is an "underwriter" within the meaning of the
Securities Act.
 
  The undersigned understands that tenders of Original Notes may be withdrawn
by written notice of withdrawal received by the Exchange Agent at any time
prior to the Expiration Date in accordance with the
 
                                      A-4
<PAGE>
 
Prospectus. In the event of a termination of the Exchange Offer, the Original
Notes tendered pursuant to the Exchange Offer will be returned to the tendering
Holders promptly (or, in the case of Original Notes tendered by book-entry
transfer, such Original Notes will be credited to the account maintained at DTC
from which such Original Notes were delivered). If the Company makes a material
change in the terms of the Exchange Offer or the information concerning the
Exchange Offer or waives a material condition of such Exchange Offer, the
Company will disseminate additional Exchange Offer materials and extend such
Exchange Offer, if and to the extent required by law.
 
  The undersigned understands that the tender of Original Notes pursuant to any
of the procedures set forth in the Prospectus and in the instructions hereto
will constitute the undersigned's acceptance of the terms and conditions of the
Exchange Offer. The Company's acceptance for exchange of Original Notes
tendered pursuant to any of the procedures described in the Prospectus will
constitute a binding agreement between the undersigned and the Company in
accordance with the terms and subject to the conditions of the Exchange Offer.
For purposes of the Exchange Offer, the undersigned understands that validly
tendered Original Notes (or defectively tendered Original Notes with respect to
which the Company has, or has caused to be, waived such defect) will be deemed
to have been accepted by the Company if, as and when the Company gives oral or
written notice thereof to the Exchange Agent.
 
  The undersigned hereby represents and warrants that the undersigned has full
power and authority to tender, sell, assign and transfer the Original Notes
tendered hereby, and that when such tendered Original Notes are accepted for
purchase by the Company, the Company will acquire good title thereto, free and
clear of all liens, restrictions, charges and encumbrances and not subject to
any adverse claim or right. The undersigned and each Beneficial Owner will,
upon request, execute and deliver any additional documents deemed by the
Exchange Agent or by the Company to be necessary or desirable to complete the
sale, assignment and transfer of the Original Notes tendered hereby.
 
  All authority conferred or agreed to be conferred by this Letter of
Transmittal shall not be affected by, and shall survive the death or incapacity
of the undersigned and any Beneficial Owner(s), and any obligation of the
undersigned or any Beneficial Owner(s) hereunder shall be binding upon the
heirs, executors, administrators, trustees in bankruptcy, personal and legal
representatives, successors and assigns of the undersigned and such Beneficial
Owner(s).
 
  The undersigned understands that the delivery and surrender of any Original
Notes is not effective, and the risk of loss of the Original Notes does not
pass to the Exchange Agent or the Company, until receipt by the Exchange Agent
of this Letter of Transmittal, or a manually signed facsimile hereof, properly
completed and duly executed, together with all accompanying evidences of
authority and any other required documents in form satisfactory to the Company.
All questions as to form of all documents and the validity (including time of
receipt) and acceptance of tenders and withdrawals of Original Notes will be
determined by the Company, in its sole discretion, which determination shall be
final and binding.
 
  Unless otherwise indicated herein under "Special Issuance Instructions," the
undersigned hereby requests that any Original Notes representing principal
amounts not tendered or not accepted for exchange be issued in the name(s) of
the undersigned (and in the case of Original Notes tendered by book-entry
transfer, by credit to the account of DTC), and Exchange Notes issued in
exchange for Original Notes pursuant to the Exchange Offer be issued to the
undersigned. Similarly, unless otherwise indicated herein under "Special
Delivery Instructions," the undersigned hereby requests that any Original Notes
representing principal amounts not tendered or not accepted for exchange and
Exchange Notes issued in exchange for Original Notes pursuant to the Exchange
Offer be delivered to the undersigned at the address shown below the
undersigned's signature(s). In the event that the "Special Issuance
Instructions" box or the "Special Delivery Instructions" box is, or both are,
completed, the undersigned hereby requests that any Original Notes representing
principal amounts not tendered or not accepted for purchase be issued in the
name(s) of, certificates for such Original Notes be delivered to, and Exchange
Notes issued in exchange for Original Notes pursuant to the Exchange Offer be
issued in the name(s) of, and be delivered to, the person(s) at the address(es)
so indicated, as applicable. The
 
                                      A-5
<PAGE>
 
undersigned recognizes that the Company has no obligation pursuant to the
"Special Issuance Instructions" box or "Special Delivery Instructions" box to
transfer any Original Notes from the name of the registered Holder(s) thereof
if the Company does not accept for exchange any of the principal amount of
such Original Notes so tendered.
 
[_] CHECK HERE IF YOU OR ANY BENEFICIAL OWNER FOR WHOM YOU HOLD ORIGINAL NOTES
    IS AN AFFILIATE OF THE COMPANY.
 
[_] CHECK HERE IF YOU OR ANY BENEFICIAL OWNER FOR WHOM YOU HOLD ORIGINAL NOTES
    TENDERED HEREBY IS A BROKER-DEALER WHO ACQUIRED SUCH NOTES DIRECTLY FROM THE
    COMPANY OR AN AFFILIATE OF THE COMPANY.
 
[_] CHECK HERE AND COMPLETE THE LINES BELOW IF YOU OR ANY BENEFICIAL OWNER FOR
    WHOM YOU HOLD ORIGINAL NOTES TENDERED HEREBY IS A BROKER-DEALER WHO ACQUIRED
    SUCH NOTES IN MARKET-MAKING OR OTHER TRADING ACTIVITIES. IF THIS BOX IS
    CHECKED, THE COMPANY WILL SEND 10 ADDITIONAL COPIES OF THE PROSPECTUS AND 10
    COPIES OF ANY AMENDMENTS OR SUPPLEMENTS THERETO TO YOU OR SUCH BENEFICIAL
    OWNER AT THE ADDRESS SPECIFIED IN THE FOLLOWING LINES.
 
Name:__________________________________________________________________________
 
Address:_______________________________________________________________________
    
        -----------------------------------------------------------------------
 
                                      A-6
<PAGE>
 
 
  SPECIAL ISSUANCE INSTRUCTIONS
 (SEE INSTRUCTIONS 1, 5, 6 AND 7)
 
   To be completed ONLY if Original
 Notes in a principal amount not
 tendered or not accepted for
 exchange are to be issued in the
 name of, or Exchange Notes are to
 be issued in the name of, someone
 other than the person(s) whose
 signature(s) appear(s) within this
 Letter of Transmittal or issued to
 an address different from that
 shown in the box entitled
 "Description of Original Notes"
 within this Letter of Transmittal.
 
 Issue:[_] Original Notes
       [_] Exchange Notes
           (check as applicable)
 
 Name_______________________________
           (PLEASE PRINT)
 Address____________________________
           (PLEASE PRINT)
 -----------------------------------
             (ZIP CODE)
 -----------------------------------
    (TAX IDENTIFICATION OR SOCIAL
          SECURITY NUMBER)
  (SEE SUBSTITUTE FORM W-9 HEREIN)
 
 
  SPECIAL DELIVERY INSTRUCTIONS
 (SEE INSTRUCTIONS 1, 5, 6 AND 7)
 
   To be completed ONLY if Original
 Notes in a principal amount not
 tendered or not accepted for
 exchange or Exchange Notes are to
 be sent to someone other than the
 person(s) whose signature(s)
 appear(s) within this Letter of
 Transmittal or to an address
 different from that shown in the
 box entitled "Description of
 Original Notes" within this Letter
 of Transmittal.
 
 Issue:[_] Original Notes
       [_] Exchange Notes
           (check as applicable)
 
 Name_______________________________
           (PLEASE PRINT)
 Address____________________________
           (PLEASE PRINT)
 -----------------------------------
             (ZIP CODE)
 -----------------------------------
    (TAX IDENTIFICATION OR SOCIAL
          SECURITY NUMBER)
  (SEE SUBSTITUTE FORM W-9 HEREIN)
 
 
                                      A-7
<PAGE>
 
 
                                PLEASE SIGN HERE
 
          (To be completed by all tendering Holders of Original Notes
 regardless of whether Original Notes are being physically delivered herewith)
 
 This Letter of Transmittal must be signed by the registered Holder(s)
 exactly as name(s) appear(s) on certificate(s) for Original Notes or, if
 tendered by a participant in DTC exactly as such participant's name appears
 on a security position listing as owner of Original Notes, or by the
 person(s) authorized to become registered Holder(s) by endorsements and
 documents transmitted herewith. If signature is by trustees, executors,
 administrators, guardians, attorneys-in-fact, officers of corporations or
 others acting in a fiduciary or representative capacity, please set forth
 full title and see Instruction 5.
 
 -----------------------------------------------------------------------------
 
 -----------------------------------------------------------------------------
          Signature(s) of Registered Holder(s) or Authorized Signatory
                       (See guarantee requirement below)
 
 Dated: ________________________________________________________________, 1998
 
 Name(s):_____________________________________________________________________
 
 -----------------------------------------------------------------------------
                                 (Please Print)
 
 Capacity (Full Title)________________________________________________________
 
 Address:_____________________________________________________________________
 
 -----------------------------------------------------------------------------
                              (Including Zip Code)
 
 Area Code and Telephone Number:______________________________________________
 
 Tax Identification or Social Security Number:________________________________
                  (Complete Accompanying Substitute Form W-9)
 
                              Signature Guarantee
                    (If Required--See Instructions 1 and 5)
 
 Authorized Signature_________________________________________________________
 
 Name of Firm_________________________________________________________________
 
                               [place seal here]
 
 
                                      A-8
<PAGE>
 
                                 INSTRUCTIONS
 
        Forming Part of the Terms and Conditions of the Exchange Offer
 
  1. Signature Guarantees. Signatures of this Letter of Transmittal must be
guaranteed by a recognized member of the Medallion Signature Guarantee Program
or by any other "eligible guarantor institution," as such term is defined in
Rule 17Ad-15 promulgated under the Exchange Act (each of the foregoing, an
"Eligible Institution"), unless the Original Notes tendered hereby are
tendered (i) by a registered Holder of Original Notes (or by a participant in
DTC whose name appears on a security position listing as the owner of such
Original Notes) that has not completed either the box entitled "Special
Issuance Instructions" or the box entitled "Special Delivery Instructions" on
this Letter of Transmittal, or (ii) for the account of an Eligible
Institution. If the Original Notes are registered in the name of a person
other than the signer of this Letter of Transmittal, if Original Notes not
accepted for exchange or not tendered are to be returned to a person other
than the registered Holder or if Exchange Notes are to be issued in the name
of or sent to a person other than the registered Holder, then the signatures
on this Letter of Transmittal accompanying the tendered Original Notes must be
guaranteed by an Eligible Institution as described above. See Instruction 5.
 
  2. Delivery of Letter of Transmittal and Original Notes. This Letter of
Transmittal is to be completed by Holders if (i) certificates representing
Original Notes are to be physically delivered to the Exchange Agent herewith
by such Holders; (ii) tender of Original Notes is to be made by book-entry
transfer to the Exchange Agent's account at DTC pursuant to the procedures set
forth under the caption "The Exchange Offer--Procedures for Tendering Original
Notes--Book-Entry Delivery Procedures" in the Prospectus; or (iii) tender of
Original Notes is to be made according to the guaranteed delivery procedures
set forth under the caption "The Exchange Offer--Procedures for Tendering
Original Notes--Guaranteed Delivery" in the Prospectus. All physically
delivered Original Notes, or a confirmation of a book-entry transfer into the
Exchange Agent's account at DTC of all Original Notes delivered
electronically, as well as a properly completed and duly executed Letter of
Transmittal (or manually signed facsimile thereof), any required signature
guarantees and any other documents required by this Letter of Transmittal,
must be received by the Exchange Agent at one of its addresses set forth on
the cover page hereto on or prior to the Expiration Date, or the tendering
Holder must comply with the guaranteed delivery procedures set forth below.
Delivery of documents to DTC does not constitute delivery to the Exchange
Agent.
 
  If a Holder desires to tender Original Notes pursuant to the Exchange Offer
and time will not permit this Letter of Transmittal, certificates representing
such Original Notes and all other required documents to reach the Exchange
Agent, or the procedures for book-entry transfer cannot be completed, on or
prior to the Expiration Date, such Holder must tender such Original Notes
pursuant to the guaranteed delivery procedures set forth under the caption
"The Exchange Offer--Procedures for Tendering Original Notes--Guaranteed
Delivery" in the Prospectus. Pursuant to such procedures, (i) such tender must
be made by or through an Eligible Institution; (ii) a properly completed and
duly executed Notice of Guaranteed Delivery, substantially in the form
provided by the Company, or an Agent's Message with respect to guaranteed
delivery that is accepted by the Company, must be received by the Exchange
Agent, either by hand delivery, mail, telegram, or facsimile transmission, on
or prior to the Expiration Date; and (iii) the certificates for all tendered
Original Notes, in proper form for transfer (or confirmation of a book-entry
transfer or all Original Notes delivered electronically into the Exchange
Agent's account at DTC pursuant to the procedures for such transfer set forth
in the Prospectus), together with a properly completed and duly executed
Letter of Transmittal (or manually signed facsimile thereof) and any other
documents required by this Letter of Transmittal, or in the case of a book-
entry transfer, a properly transmitted Agent's Message, must be received by
the Exchange Agent within two business days after the date of the execution of
the Notice of Guaranteed Delivery.
 
  The method of delivery of this Letter of Transmittal, the Original Notes and
all other required documents, including delivery through DTC and any
acceptance or Agent's Message delivered through ATOP, is at the election and
risk of the tendering Holder and, except as otherwise provided in this
Instruction 2, delivery will be deemed made only when actually received by the
Exchange Agent. If
 
                                      A-9
<PAGE>
 
delivery is by mail, it is suggested that the Holder use properly insured,
registered mail with return receipt requested, and that the mailing be made
sufficiently in advance of the Expiration Date to permit delivery to the
Exchange Agent prior to such date.
 
  No alternative, conditional or contingent tenders will be accepted. All
tendering Holders, by execution of this Letter of Transmittal (or a facsimile
thereof), waive any right to receive any notice of the acceptance of their
Original Notes for exchange.
 
  3. Inadequate Space. If the spare provided herein is inadequate, the
certificate numbers and/or the principal amount represented by Original Notes
should be listed on a separate signed schedule attached hereto.
 
  4. Partial Tenders. (Not applicable to Holders who tender by book-entry
transfer). If Holders wish to tender less than the entire principal amount
evidenced by any Original Note submitted, such Holders must fill in the
principal amount that is to be tendered in the column entitled "Principal
Amount Tendered." The minimum permitted tender is $1,000 in principal amount
of Original Notes. All other tenders must be in integral multiples of $1,000
in principal amount. In the case of a partial tender of Original Notes, as
soon as practicable after the Expiration Date, new certificates for the
remainder of the Original Notes that were evidenced by such Holder's old
certificates will be sent to such Holder, unless otherwise provided in the
appropriate box on this Letter of Transmittal. The entire principal amount
that is represented by Original Notes delivered to the Exchange Agent will be
deemed to have been tendered, unless otherwise indicated.
 
  5. Signatures on Letter of Transmittal, Instruments of Transfer and
Endorsements. If this Letter of Transmittal is signed by the registered
Holder(s) of the Original Notes tendered hereby, the signatures must
correspond with the name(s) as written on the face of the certificate(s)
without alteration, enlargement or any change whatsoever. If this Letter of
Transmittal is signed by a participant in DTC whose name is shown as the owner
of the Original Notes tendered hereby, the signature must correspond with the
name shown on the security position listing as the owner of the Original
Notes.
 
  If any of the Original Notes tendered hereby are registered in the name of
two or more Holders, all such Holders must sign this Letter of Transmittal. If
any of the Original Notes tendered hereby are registered in different names on
several certificates, it will be necessary to complete, sign and submit as
many separate Letters of Transmittal as there are different registrations of
certificates.
 
  If this Letter of Transmittal or any Original Note or instrument of transfer
is signed by a trustee, executor, administrator, guardian, attorney-in-fact,
agent, officer of a corporation or other person acting in a fiduciary or
representative capacity, such person should so indicate when signing, and
proper evidence satisfactory to the Company of such person's authority to so
act must be submitted.
 
  When this Letter of Transmittal is signed by the registered Holder(s) of the
Original Notes listed herein and transmitted hereby, no endorsements of
Original Notes or separate instruments of transfer are required unless
Exchange Notes are to be issued, or Original Notes not tendered or exchanged
are to be issued, to a person other than the registered Holder(s), in which
case signatures on such Original Notes or instruments of transfer must be
guaranteed by an Eligible Institution.
 
  If this Letter of Transmittal is signed other than by the registered
Holder(s) of the Original Notes listed herein, the Original Notes must be
endorsed or accompanied by appropriate instruments of transfer, in either case
signed exactly as the name(s) of the registered Holder(s) appear on the
Original Notes and signatures on such Original Notes or instruments of
transfer are required and must be guaranteed by an Eligible Institution,
unless the signature is that of an Eligible Institution.
 
  6. Special Issuance and Delivery Instructions. If certificates for Exchange
Notes or unexchanged or untendered Original Notes are to be issued in the name
of a person other than the signer of this Letter of Transmittal, or if
Exchange Notes or such Original Notes are to be sent to someone other than the
signer of this
 
                                     A-10
<PAGE>
 
Letter of Transmittal or to an address other than that shown herein, the
appropriate boxes on this Letter of Transmittal should be completed. All
Original Notes tendered by book-entry transfer and not accepted for payment
will be returned by crediting the account at DTC designated herein as the
account for which such Original Notes were delivered.
 
  7. Transfer Taxes. Except as set forth in this Instruction 7, the Company
will pay or cause to be paid any transfer taxes with respect to the transfer
and sale of Original Notes to it, or to its order, pursuant to the Exchange
Offer. If Exchange Notes, or Original Notes not tendered or exchanged are to be
registered in the name of any persons other than the registered owners, of if
tendered Original Notes are registered in the name of any persons other than
the persons signing this Letter of Transmittal, the amount of any transfer
taxes (whether imposed on the registered Holder or such other person) payable
on account of the transfer to such other person must be paid to the Company or
the Exchange Agent (unless satisfactory evidence of the payment of such taxes
or exemption therefrom is submitted) before the Exchange Notes will be issued.
 
  8. Waiver of Conditions. The conditions of the Exchange Offer may be amended
or waived by the Company, in whole or in part, at any time and from time to
time in the Company's sole discretion, in the case of any Original Notes
tendered.
 
  9. Substitute Form W-9. Each tendering owner of a Note (or other payee) is
required to provide the Exchange Agent with a correct taxpayer identification
number ("TIN"), generally the owner's social security or federal employer
identification number, and with certain other information, on Substitute Form
W-9, which is provided hereafter under "Important Tax Information," and to
certify that the owner (or other payee) is not subject to backup withholding.
Failure to provide the information on the Substitute Form W-9 may subject the
tendering owner (or other payee) to a $50 penalty imposed by the Internal
Revenue Service and 31% federal income tax withholding on the payment of the
Purchase Price. The box in Part 3 of the Substitute Form W-9 may be checked if
the tendering owner (or other payee) has not been issued a TIN and has applied
for a TIN or intends to apply for a TIN in the near future. If the box in Part
3 is checked and the Exchange Agent is not provided with a TIN by the time of
payment, the Exchange Agent will withhold 31% on all such payments of the
Purchase Price until a TIN is provided to the Exchange Agent.
 
  10. Broker-dealers Participating in the Exchange Offer. If no broker-dealer
checks the last box on page 7 of this Letter of Transmittal, the Company has no
obligation under the Registration Rights Agreement to allow the use of the
Prospectus for resales of the Exchange Notes by broker-dealers or to maintain
the effectiveness of the Registration Statement of which the Prospectus is a
part after the consummation of the Exchange Offer.
 
  11. Requests for Assistance or Additional Copies. Any questions or requests
for assistance or additional copies of the Prospectus, this Letter of
Transmittal or the Notice of Guaranteed Delivery may be directed to the
Exchange Agent at the telephone numbers and location listed above. A Holder or
owner may also contact such Holder's or owner's broker, dealer, commercial bank
or trust company or nominee for assistance concerning the Exchange Offer.
 
  IMPORTANT: This Letter of Transmittal (or a facsimile hereof), together with
certificates representing the Original Notes and all other required documents
or the Notice of Guaranteed Delivery, must be received by the Exchange Agent on
or prior to the Expiration Date.
 
                                      A-11
<PAGE>
 
                           IMPORTANT TAX INFORMATION
 
  Under federal income tax law, an owner of Original Notes whose tendered
Original Notes are accepted for exchange is required to provide the Exchange
Agent with such owner's current TIN on Substitute Form W-9 below. If such owner
is an individual, the TIN is his or her social security number. If the Exchange
Agent is not provided with the correct TIN, the owner or other recipient of
Exchange Notes may be subject to a $50 penalty imposed by the Internal Revenue
Service. In addition, any interest on Exchange Notes paid to such owner or
other recipient may be subject to 31% backup withholding tax.
 
  Certain owners of Notes (including, among others, all corporations and
certain foreign individuals) are not subject to these backup withholding and
reporting requirements. In order for a foreign individual to qualify as an
exempt recipient, that owner must submit to the Exchange Agent a properly
completed Internal Revenue Service Form W-8 (a "Form W-8"), signed under
penalties of perjury, attesting to that individual's exempt status. A Form W-8
can be obtained from the Exchange Agent. See the enclosed "Guidelines for
Certification of Taxpayer Identification Number on Substitute Form W-9" for
additional instructions.
 
  Backup withholding is not an additional tax. Rather, the federal income tax
liability of persons subject to backup withholding will be reduced by the
amount of tax withheld. If withholding results in an overpayment of taxes, a
refund may be obtained from the Internal Revenue Service.
 
Purpose of Substitute Form W-9
 
  To prevent backup withholding, the owner is required to notify the Exchange
Agent of the owner's current TIN (or the TIN of any other payee) by completing
the following form, certifying that the TIN provided on Substitute Form W-9 is
correct (or that such owner is awaiting a TIN), and that (i) the owner has not
been notified by the Internal Revenue Service that the owner is subject to
backup withholding as a result of failure to report all interest or dividends
or (ii) the Internal Revenue Service has notified the owner that the owner is
no longer subject to backup withholding.
 
What Number to Give the Exchange Agent
 
  The Holder is required to give the Exchange Agent the TIN (e.g., social
security number or employer identification number) of the owner of the Original
Notes. If the Original Notes are registered in more than one name or are not
registered in the name of the actual owner, consult the enclosed "Guidelines
for Certification of Taxpayer Identification Number on Substitute Form W-9,"
for additional guidance on which number to report.
 
                                      A-12
<PAGE>
 
                            PAYER'S NAME:
- --------------------------------------------------------------------------------
                        PART 1--PLEASE PROVIDE YOUR    Social security number(s)
                        TIN IN THE BOX AT RIGHT AND          or Employer
                        CERTIFY BY SIGNING AND          Identification Number(s)
                        DATING BELOW.
 SUBSTITUTE                                             ----------------------
                       --------------------------------------------------------
 FORM W-9               PART 2--Certifications--Under penalties of perjury, I
                        certify that:
 
 DEPARTMENT OF THE
 TREASURY               (1) The number shown on this form is my correct
 INTERNAL REVENUE           taxpayer identification number (or I am waiting
 SERVICE                    for a number to be issued to me), and
 
 
 PAYOR'S REQUEST FOR    (2) I am not subject to backup withholding because:
 TAXPAYER                   (a) I am exempt from backup withholding, or (b)
 IDENTIFICATION             I have not been notified by the Internal Revenue
 NUMBER ("TIN")             Service (IRS) that I am subject to backup
                            withholding as a result of a failure to report
                            all interest or dividends, or (c) the IRS has
                            notified me that I am no longer subject to
                            backup withholding.
 
                            CERTIFICATION INSTRUCTIONS--You must cross out
                            item (2) above if you have been notified by the
                            IRS that you are currently subject to backup
                            withholding because of under reporting interest
                            or dividends on your tax return.
                       --------------------------------------------------------
 
                                                              PART 3--
                        SIGNATURE
                                 -------------------------
                        DATE                                  Awaiting TIN [_]
                            ------------------------------
 
NOTE: FAILURE TO COMPLETE AND RETURN THIS FORM MAY RESULT IN A $50 PENALTY
      IMPOSED BY THE INTERNAL REVENUE SERVICE AND BACKUP WITHHOLDING OF 31%.
      PLEASE REVIEW THE ENCLOSED GUIDELINES FOR CERTIFICATION OF TAXPAYER
      IDENTIFICATION NUMBER ON SUBSTITUTE FORM W-9 FOR ADDITIONAL DETAILS.
 
      YOU MUST COMPLETE THE FOLLOWING CERTIFICATE IF YOU CHECKED THE BOX IN
      PART 3 OF SUBSTITUTE FORM W-9.
 
 
             CERTIFICATE OF AWAITING TAXPAYER IDENTIFICATION NUMBER
 
 I certify under penalties of perjury that a taxpayer identification number
 has not been issued to me, and either (1) I have mailed or delivered an
 application to receive a taxpayer identification number to the appropriate
 Internal Revenue Service Center or Social Security Administration Office or
 (2) I intend to mail or deliver an application in the near future. I
 understand that if I do not provide a taxpayer identification number by the
 time of payment, 31% of all reportable cash payments made to me will be
 withheld until I provide a taxpayer identification number.
 
 Signature                                               Date
          ----------------------------------------------     -----------------
 
 
                                      A-13

<PAGE>
 
 
 
 
                        [LOGO OF GROUPMAC APPEARS HERE]
 
                               Group Maintenance
                                 America Corp.
<PAGE>
 
                                    PART II
 
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
Item 20. Indemnification of Directors and Officers.
 
  Article 2.02A of the TBCA provides, in relevant part, as follows:
 
  Subject to the provisions of Sections B and C of this Article, each
  corporation shall have power:
 
    (16) to indemnify directors, officers, employees, and agents of the
  corporation and to purchase and maintain liability insurance for those
  persons.
 
  Article IX of the Articles of Incorporation of Group Maintenance America
Corp. (the "Company") (therein referred to as the "Corporation") provides as
follows:
 
    1. Right to Indemnification. Each person who was or is made a party or is
  threatened to be made a party to or is otherwise involved in any
  threatened, pending or completed action, suit or proceeding, whether civil,
  criminal, administrative, arbitrative or investigative, any appeal in such
  action, suit or proceeding, and any inquiry or investigation that would
  lead to such action, suit or proceeding (hereinafter a "proceeding"), by
  reason of the fact that he or she, or a person of whom he or she is the
  legal representative, is or was a director or officer of the Corporation or
  is or was serving at the request of the Corporation as a director or
  officer of another corporation or of a partnership, joint venture, trust or
  other enterprise, including service with respect to any employee benefit
  plan (hereinafter an "indemnitee"), whether the basis of such proceeding is
  alleged action in an official capacity as a director or officer or in any
  other capacity while serving as a director or officer, shall be indemnified
  and held harmless by the Corporation to the fullest extent authorized by
  the TBCA, as the same exists or may hereafter be amended (but, in the case
  of any such amendment, only to the extent that such amendment permits the
  Corporation to provide broader indemnification rights than permitted prior
  thereto), against all judgments, fines, penalties (including excise tax and
  similar taxes), settlements, and reasonable expenses actually incurred by
  such indemnitee in connection therewith. The right to indemnification
  conferred in this Article shall include the right to be paid by the
  Corporation the expenses incurred in defending any such proceeding in
  advance of its final disposition (hereinafter an "advancement of
  expenses"); provided, however, that, if the TBCA requires, an advancement
  of expenses incurred by an indemnitee shall be made only upon delivery to
  the Corporation of an undertaking, by or on behalf of such indemnitee, to
  repay all amounts so advanced if it shall ultimately be determined that
  such indemnitee is not entitled to be indemnified for such expenses under
  this Article or otherwise.
 
    2. Insurance. The Corporation may purchase and maintain insurance, at its
  expense, on behalf of any indemnitee against any liability asserted against
  him and incurred by him in such a capacity or arising out of his status as
  a representative of the Corporation, whether or not the Corporation would
  have the power to indemnify such person against such expense, liability or
  loss under the TBCA.
 
    3. Indemnity of Employees and Agents of the Corporation. The Corporation
  may, to the extent authorized from time to time by the board of directors,
  grant rights to indemnification and to the advancement of expenses to any
  employee or agent of the Corporation to the fullest extent of the
  provisions of this Article or as otherwise permitted under the TBCA with
  respect to the indemnification and advancement of expenses of directors and
  officers of the Corporation.
 
  The Company has entered into employment agreements with its executive
officers pursuant to which the Company generally is obligated to indemnify such
officers to the full extent permitted by the TBCA as described above.
 
  The Company has purchased liability insurance policies covering the directors
and officers of the Company, including, to provide protection where the Company
cannot legally indemnify a director or officer and where a claim arises under
the Employee Retirement Income Security Act of 1974 against a director or
officer based on an alleged breach of fiduciary duty or other wrongful act.
 
                                      II-1
<PAGE>
 
Item 21. Exhibits and Financial Statement Schedules.
 
  (a) Exhibits
 
<TABLE>
<CAPTION>
 Exhibit
 Number  Description of Exhibit
 ------- ----------------------
 <C>     <S>
  3.1*   Articles of Incorporation of the Company, as amended.
  3.2**  Bylaws of the Company, as amended.
  4.1*** Indenture dated January 22, 1999 among the Company, the Guarantors
         named therein and State Street Bank and Trust Company, as Trustee.
  4.2*** Supplemental Indenture dated March 22, 1999 among the Company, the
         Guarantors named therein and State Street Bank & Trust Company, as
         Trustee.
  5***   Opinion of Bracewell & Patterson, L.L.P. as to the legality of the
         Common Stock being offered.
  8***   Opinion of Bracewell & Patterson, L.L.P. as to certain federal income
         tax matters.
 12**    Calculation of Earnings to Fixed Charges.
 21**    Subsidiaries of the Company.
 23.1*** Consent of Bracewell & Patterson, L.L.P. (included in their opinions
         filed as Exhibit 5 and Exhibit 8 hereto).
 23.2*** Consent of KPMG LLP.
 24***   Powers of attorney.
 25***   Form T-1 Statement of Eligibility under the Trust Indenture Act of
         1939 of State Street Bank and Trust Company.
 27**    Financial Data Schedule.
</TABLE>
- --------
* Filed as an exhibit to the Company's Form S-1 (Registration No. 333-34067).
** Filed as an exhibit to the Company's Annual Report on Form 10-K/A for the
year ended December 31, 1998.
*** Filed herewith.
 
                                      II-2
<PAGE>
 
  (b) Financial Statement Schedules
 
  No financial statement schedules are included herein. All other schedules
for which provision is made in the applicable accounting regulations of the
Commission are not required under the related instructions, are inapplicable,
or the information is included in the consolidated financial statements, and
have therefore been omitted.
 
  (c) Reports, Opinions, and Appraisals
 
  The following reports, opinions and appraisals are included herein.
 
    None.
 
Item 22. Undertakings.
 
  (a) Regulation S-K, Item 512 Undertakings
 
    (1) The undersigned registrant hereby undertakes:
 
      (i) To file, during any period in which offers or sales are being
    made, a post-effective amendment to this registration statement:
 
        (a) To include any prospectus required by section 10(a)(3) of the
      Securities Act of 1933;
 
        (b) To reflect in the prospectus any facts or events arising after
      the effective date of the registration statement (or the most recent
      post-effective amendment thereof) which, individually or in the
      aggregate, represent a fundamental change in the information set
      forth in the registration statement. Notwithstanding the foregoing,
      any increase or decrease in volume of securities offered (if the
      total dollar value of securities offered would not exceed that which
      was registered) and any deviation from the low or high end of the
      estimated maximum offering range may be reflected in the form of
      prospectus filed with the Commission pursuant to Rule 424(b) if, in
      the aggregate, the changes in volume and price represent no more
      than a 20% change in the maximum offering price set forth in the
      "Calculation of Registration Fee" table in the effective
      registration statement.
 
        (c) To include any material information with respect to the plan
      of distribution not previously disclosed in the registration
      statement or any material change to such information in the
      registration statement;
 
      (ii) That, for the purpose of determining any liability under the
    Securities Act of 1933, each such post-effective amendment shall be
    deemed to be a new registration statement relating to the securities
    offered therein, and the offering of such securities at that time shall
    be deemed to be the initial bona fide offering thereof.
 
      (iii) To remove from registration by means of a post-effective
    amendment any of the securities being registered which remain unsold at
    the termination of the offering.
 
    (2) The undersigned registrant hereby undertakes that, for purposes of
  determining any liability under the Securities Act of 1933, each filing of
  the registrant's annual report pursuant to section 13(a) or section 15(d)
  of the Securities Exchange Act of 1934 (and, where applicable, each filing
  of an employee benefit plan's annual report pursuant to section 15(d) of
  the Securities Exchange Act of 1934) that is incorporated by reference in
  the registration statement shall be deemed to be a new registration
  statement relating to the securities offered therein, and the offering of
  such securities at that time shall be deemed to be the initial bona fide
  offering thereof.
 
    (3) Registration on Form S-4 of Securities Offered for Resale.
 
      (i) The undersigned hereby undertakes as follows: That prior to any
    public reoffering of the securities registered hereunder through the
    use of a prospectus which is a part of this registration
 
                                     II-3
<PAGE>
 
    statement, by any person or party who is deemed to be an underwriter
    within the meaning of Rule 145(c), the issuer undertakes that such
    reoffering prospectus will contain the information called for by the
    applicable registration form with respect to reofferings by person who
    may be deemed underwriters, in addition to the information called for
    by the other Items of the applicable form.
 
      (ii) The registrant undertakes that every prospectus (a) that is
    filed pursuant to the paragraph immediately preceding, or (b) that
    purports to meet the requirements of section 10(a)(3) of the Act and is
    used in connection with an offering of securities subject to Rule 415,
    will be filed as a part of an amendment to the registration statement
    and will not be used until such amendment is effective, and that, for
    purposes of determining any liability under the Securities Act of 1933,
    each such post-effective amendment shall be deemed to be a new
    registration statement relating to the securities offered therein, and
    the offering of new securities at that time shall be deemed to be the
    initial bona fide offering thereof.
 
    (4) Insofar as indemnification for liabilities arising under the
  Securities Act may be permitted to directors, officers and controlling
  persons of the Company pursuant to the foregoing provisions, or otherwise,
  the Company has been advised that in the opinion of the Commission such
  indemnification is against public policy as expressed in the Securities Act
  and is, therefore, unenforceable. In the event that a claim for
  indemnification against such liabilities (other than payment by the Company
  of expenses incurred or paid by a director, officer or controlling person
  of the Company in the successful defense of any action, suit or proceeding)
  is asserted by such director, officer or controlling person in connection
  with the securities being registered, the Company will, unless in the
  opinion of its counsel the matter has been settled by controlling
  precedent, submit to a court of appropriate jurisdiction the question
  whether such indemnification by it is against public policy as expressed in
  the Securities Act and will be governed by the final adjudication of such
  issue.
 
  (b) The undersigned registrant hereby undertakes to respond to requests for
information that is incorporated by reference into the prospectus pursuant to
Item 4 of this Form, within one business day of receipt of such request, and to
send the incorporated documents by first class mail or other equally prompt
means. This includes information contained in documents filed subsequent to the
effective date of the registration statement through the date of responding to
the request.
 
  (c) The undersigned hereby undertakes to supply by means of a post-effective
amendment all information concerning a transaction, and the company being
acquired therein, that was not the subject of and included in the registration
statement when it became effective.
 
                                      II-4
<PAGE>
 
                                   SIGNATURES
 
  Pursuant to the requirements of the Securities Act of 1933, Group Maintenance
America Corp. has duly caused this registration statement or amendment thereto
to be signed on its behalf by the undersigned, thereunto duly authorized, in
the City of Houston, State of Texas, on April 21, 1999.
 
                                          GROUP MAINTENANCE AMERICA CORP.
 
                                          By:    /s/ J. Patrick Millinor, Jr.
                                             ----------------------------------
 
                                                 J. Patrick Millinor, Jr.
                                                  Chief Executive Officer
 
  Pursuant to the requirements of the Securities Act of 1933, this registration
statement or amendment thereto has been signed below by the following persons
in the indicated capacities on April 21, 1999.
 
<TABLE>
<S>  <C>
                  Signature                                  Title
 
              James P. Norris*                  Chairman of the Board;
    -------------------------------------        Director
               James P. Norris
 
        /s/ J. Patrick Millinor, Jr.            Director and Chief Executive
    -------------------------------------        Officer (principal executive
          J. Patrick Millinor, Jr.               officer)
 
            /s/ Darren B. Miller                Executive Vice President--
    -------------------------------------        Chief Financial Officer
              Darren B. Miller                   (principal financial officer)
 
             /s/ Daniel W. Kipp                 Senior Vice President and
    -------------------------------------        Corporate Controller
               Daniel W. Kipp                    (principal accounting
                                                 officer)
 
               Donald L. Luke*                  Director, President and Chief
    -------------------------------------        Operating Officer
               Donald L. Luke
 
             David L. Henninger*                Director
    -------------------------------------
             David L. Henninger
 
            Chester J. Jachimiec*               Director
    -------------------------------------
            Chester J. Jachimiec
 
              Timothy Johnston*                 Director
    -------------------------------------
              Timothy Johnston
 
            Andrew Jeffrey Kelly*               Director
    -------------------------------------
            Andrew Jeffrey Kelly
 
              Thomas B. McDade*                 Director
    -------------------------------------
              Thomas B. McDade
</TABLE>
 
                                      II-5
<PAGE>
 
<TABLE>
<S>  <C>
                  Signature                                  Title
 
              Lucian Morrison*                  Director
    -------------------------------------
               Lucian Morrison
 
             Robert Munson III*                 Director
    -------------------------------------
              Robert Munson III
 
              Fredric Sigmund*                  Director
    -------------------------------------
               Fredric Sigmund
 
              John M. Sullivan*                 Director
    -------------------------------------
              John M. Sullivan
 
              James D. Weaver*                  Director
    -------------------------------------
               James D. Weaver
 
              William M. Witz*                  Director
    -------------------------------------
               William M. Witz
</TABLE>
 
 
           /s/ Randolph W. Bryant
    *By: ________________________________
 
             Randolph W. Bryant
        (Attorney-in-fact for persons
                 indicated)
 
                                      II-6

<PAGE>
 
                        GROUP MAINTENANCE AMERICA CORP.

                                 as the Company

                                      and

                         THE SUBSIDIARIES NAMED HEREIN

                                 as Guarantors

                                       to

                      STATE STREET BANK AND TRUST COMPANY

                                   as Trustee

                                   INDENTURE

                          Dated as of January 22, 1999

                               up to $200,000,000

                   9 3/4% Senior Subordinated Notes due 2009,

                                    Series A

                   9 3/4% Senior Subordinated Notes due 2009,

                                    Series B
<PAGE>
 
                             CROSS-REFERENCE TABLE

TIA                                                                Indenture
Section                                                             Section
- -------                                                            ----------

310(a)(1).......................................................   6.9
310(a)(2).......................................................   6.9
310(a)(3).......................................................   N.A
310(a)(4).......................................................   N.A.
310(a)(5).......................................................   N.A.
310(b)..........................................................   6.8; 6.10
310(c)..........................................................   N.A.
311(a)..........................................................   6.13
311(b)..........................................................   6.13
311(c)..........................................................   N.A.
312(a)..........................................................   7.1; 7.2
312(b)..........................................................   7.2
312(c)..........................................................   7.2
313(a)..........................................................   7.3
313(b)..........................................................   7.3
313(c)..........................................................   1.6
313(d)..........................................................   7.3
314(a)..........................................................   7.4
314(b)..........................................................   N.A.
314(c)(1).......................................................   1.2
314(c)(2).......................................................   1.2
314(c)(3).......................................................   N.A.
314(d)..........................................................   N.A.
314(e)..........................................................   1.2
314(f)..........................................................   N.A.
315(a)..........................................................   6.1
315(b)..........................................................   6.2
315(c)..........................................................   6.1
315(d)..........................................................   6.1
315(e)..........................................................   5.14
316(a)(1)(A)....................................................   5.12
316(a)(1)(B)....................................................   5.13
316(a)(2).......................................................   N.A.
316(a)(last sentence)...........................................   1.1*
316(b)..........................................................   5.7; 5.8
316(c)..........................................................   1.4
317(a)(1).......................................................   5.3
317(a)(2).......................................................   5.4
317(b)..........................................................   10.3
317(a)..........................................................   1.7
____________________
Note:  This table of contents shall not, for any purpose, be deemed to be a part
       of the Indenture.

N.A. means Not Applicable

*      Definition of "Outstanding."


<PAGE>
 
                               TABLE OF CONTENTS

                                                                            Page
                                                                            ----
                                   ARTICLE I

                        Definitions and Other Provisions
                             of General Application

SECTION 1.1.  Definitions..................................................   1
SECTION 1.2.  Compliance Certificates and Opinions.........................  32
SECTION 1.3.  Form of Documents Delivered to Trustee.......................  33
SECTION 1.4.  Acts of Holders; Record Dates................................  33
SECTION 1.5.  Notices to Trustee, the Company or a Guarantor...............  36
SECTION 1.6.  Notice to Holders; Waiver....................................  36
SECTION 1.7.  Conflict with Trust Indenture Act............................  37
SECTION 1.8.  Effect of Headings and Table of Contents.....................  37
SECTION 1.9.  Successors and Assigns.......................................  37
SECTION 1.10. Separability Clause..........................................  38
SECTION 1.11. Benefits of Indenture........................................  38
SECTION 1.12. Governing Law................................................  38
SECTION 1.13. Legal Holidays...............................................  38

                                   ARTICLE II

                                 Security Forms

SECTION 2.1.  Forms Generally..............................................  38

                                  ARTICLE III

                                 The Securities

SECTION 3.1.  Title and Terms..............................................  39
SECTION 3.2.  Denominations................................................  40
SECTION 3.3.  Execution, Authentication, Delivery and Dating...............  40
SECTION 3.4.  Temporary Securities.........................................  41
SECTION 3.5.  Registration, Registration of Transfer and Exchange..........  42
SECTION 3.6.  Mutilated, Destroyed, Lost and Stolen Securities.............  43
SECTION 3.7.  Payment of Interest; Rights Preserved........................  44
SECTION 3.8.  Persons Deemed Owners........................................  45
SECTION 3.9.  Cancellation.................................................  45
____________________
Note:  This table of contents shall not, for any purpose, be deemed to be a part
       of the Indenture.

                                       i
<PAGE>
 
                                                                            Page
                                                                            ----

SECTION 3.10. Computation of Interest......................................  46
SECTION 3.11. CUSIP and CINS Numbers.......................................  46
SECTION 3.12. Deposits of Monies...........................................  46
SECTION 3.13. Book-Entry Provisions for Global Securities..................  46
SECTION 3.14. Special Transfer Provisions..................................  47

                                   ARTICLE IV

                           Satisfaction and Discharge

SECTION 4.1.  Satisfaction and Discharge of Indenture......................  51
SECTION 4.2.  Application of Trust Money...................................  52

                                   ARTICLE V

                                    Remedies

SECTION 5.1.  Events of Default............................................  52
SECTION 5.2.  Acceleration of Maturity; Rescission and Annulment...........  55
SECTION 5.3.  Collection of Indebtedness and Suits for Enforcement by
               Trustee.....................................................  56
SECTION 5.4.  Trustee May File Proofs of Claim.............................  57
SECTION 5.5.  Trustee May Enforce Claims Without Possession of Securities..  58
SECTION 5.6.  Application of Money Collected...............................  58
SECTION 5.7.  Limitation on Suits..........................................  59
SECTION 5.10. Unconditional Right of Holders to Receive Principal,
               Premium and Interest........................................  59
SECTION 5.11. Restoration of Rights and Remedies...........................  60
SECTION 5.12. Rights and Remedies Cumulative...............................  60
SECTION 5.13. Delay or Omission Not Waiver.................................  60
SECTION 5.14. Control by Holders...........................................  60
SECTION 5.15. Waiver of Past Defaults......................................  61
SECTION 5.16. Undertaking for Costs........................................  61
SECTION 5.17. Waiver of Stay or Extension Laws.............................  62

                                   ARTICLE VI

                                  The Trustee

SECTION 6.1.  Certain Duties and Responsibilities..........................  62
SECTION 6.2.  Notice of Defaults...........................................  63
SECTION 6.3.  Certain Rights of Trustee....................................  63
____________________
Note:  This table of contents shall not, for any purpose, be deemed to be a part
       of the Indenture.

                                      ii
<PAGE>
 
                                                                            Page
                                                                            ----

SECTION 6.4.  Not Responsible for Recitals or Issuance of Securities.......  65
SECTION 6.5.  May Hold Securities..........................................  65
SECTION 6.6.  Money Held in Trust..........................................  65
SECTION 6.7.  Compensation and Reimbursement...............................  66
SECTION 6.8.  Conflicting Interests........................................  67
SECTION 6.9.  Corporate Trustee Required; Eligibility......................  67
SECTION 6.10. Resignation and Removal; Appointment of Successor............  67
SECTION 6.11. Acceptance of Appointment by Successor.......................  69
SECTION 6.12. Merger, Conversion, Consolidation or Succession to Business..  69
SECTION 6.13. Preferential Collection of Claims Against the Company or a
               Guarantor...................................................  70
SECTION 6.14. Appointment of Authenticating Agent..........................  70

                                  ARTICLE VII

               Holders' Lists and Reports by Trustee and Company

SECTION 7.1.  Company to Furnish Trustee Names and Addresses of Holders....  72
SECTION 7.2.  Preservation of Information; Communications to Holders.......  72
SECTION 7.3.  Reports by Trustee...........................................  73
SECTION 7.4.  Reports by Company...........................................  73

                                  ARTICLE VIII

              Consolidation, Merger, Conveyance, Transfer or Lease

SECTION 8.1.  Company or Guarantor May Consolidate, Etc. Only on Certain
               Terms.......................................................  73
SECTION 8.2.  Successor Substituted........................................  75

                                   ARTICLE IX

                  Amendments; Waivers; Supplemental Indentures

SECTION 9.1.  Amendments, Waivers and Supplemental Indentures Without
               Consent of Holders..........................................  76
SECTION 9.2.  Modifications, Amendments and Supplemental Indentures with
               Consent of Holders..........................................  77
SECTION 9.3.  Execution of Supplemental Indentures.........................  78
SECTION 9.4.  Effect of Supplemental Indentures............................  79
____________________
Note:  This table of contents shall not, for any purpose, be deemed to be a part
       of the Indenture.

                                      iii
<PAGE>
 
                                                                            Page
                                                                            ----

SECTION 9.5.   Conformity with Trust Indenture Act.........................  79
SECTION 9.6.   Reference in Securities to Supplemental Indentures..........  79
SECTION 9.7.   Waiver of Certain Covenants.................................  79
SECTION 9.8.   No Liability for Certain Persons............................  80

                                   ARTICLE X

                                   Covenants

SECTION 10.1.  Payment of Principal, Premium and Interest..................  80
SECTION 10.2.  Maintenance of Office or Agency.............................  80
SECTION 10.3.  Money for Security Payments to be Held in Trust.............  81
SECTION 10.4.  Existence; Activities.......................................  82
SECTION 10.5.  Maintenance of Properties...................................  82
SECTION 10.6.  Payment of Taxes and Other Claims...........................  83
SECTION 10.7.  Maintenance of Insurance....................................  83
SECTION 10.8.  Limitation on Indebtedness..................................  84
SECTION 10.9.  Limitation on Restricted Payments...........................  84
SECTION 10.10. Limitation on Issuance of Preferred Stock of Restricted
                Subsidiaries...............................................  88
SECTION 10.11. Limitation on Transactions with Affiliates..................  88
SECTION 10.12. Limitation on Liens.........................................  89
SECTION 10.13. Change of Control...........................................  89
SECTION 10.14. Disposition of Proceeds of Asset Sales......................  90
SECTION 10.15. Limitation on Dividends and Other Payment Restrictions
                Affecting Restricted Subsidiaries..........................  93
SECTION 10.16. Limitation on Issuance of Subordinated Indebtedness.........  94
SECTION 10.17. Additional Subsidiary Guarantees............................  94
SECTION 10.18. Limitation on Designations of Unrestricted Subsidiaries.....  95
SECTION 10.19. Provision of Financial Information..........................  96
SECTION 10.20. Statement by Officers as to Default; Compliance
                Certificates...............................................  97

                                   ARTICLE XI

                            Redemption of Securities

SECTION 11.1.  Right of Redemption.........................................  97
SECTION 11.2.  Applicability of Article....................................  97
SECTION 11.3.  Election to Redeem; Notice to Trustee.......................  97
____________________
Note:  This table of contents shall not, for any purpose, be deemed to be a part
       of the Indenture.

                                      iv
<PAGE>
 
                                                                            Page
                                                                            ----

SECTION 11.4.  Selection by Trustee of Securities To Be Redeemed...........  98
SECTION 11.5.  Notice of Redemption........................................  98
SECTION 11.6.  Deposit of Redemption Price.................................  99
SECTION 11.7.  Securities Payable on Redemption Date.......................  99
SECTION 11.8.  Securities Redeemed in Part................................. 100

                                  ARTICLE XII

                       Defeasance and Covenant Defeasance

SECTION 12.1.  Company's Option To Effect Defeasance or Covenant
                Defeasance................................................. 100
SECTION 12.2.  Defeasance and Discharge.................................... 100
SECTION 12.3.  Covenant Defeasance......................................... 101
SECTION 12.4.  Conditions to Defeasance or Covenant Defeasance............. 102
SECTION 12.5.  Deposited Money and U.S. Government Obligations To Be
                Held in Trust; Miscellaneous Provisions.................... 104
SECTION 12.6.  Reinstatement............................................... 105

                                  ARTICLE XIII

                                    Guaranty

SECTION 13.1.  Guaranty.................................................... 105
SECTION 13.2.  Limitation on Liability..................................... 108
SECTION 13.3.  Execution and Delivery of Guarantees........................ 108
SECTION 13.4.  Guarantors May Consolidate, Etc., on Certain Terms.......... 109
SECTION 13.5.  Release of Guarantors....................................... 109
SECTION 13.6.  Successors and Assigns...................................... 110
SECTION 13.7.  No Waiver, etc.............................................. 110
SECTION 13.8.  Modification, etc........................................... 110
SECTION 13.9.  Subordination of Guarantees................................. 111

                                  ARTICLE XIV

                                 Subordination

SECTION 14.1.  Securities Subordinate to Senior Indebtedness and Senior
                to Subordinated Indebtedness............................... 111
SECTION 14.2.  Payment Over of Proceeds Upon Dissolution, Etc.............. 111
SECTION 14.3.  No Payment When Designated Senior Indebtedness in Default... 112
____________________
Note:  This table of contents shall not, for any purpose, be deemed to be a part
       of the Indenture.

                                       v
<PAGE>
 
                                                                            Page
                                                                            ----

SECTION 14.4.  Subrogation to Rights of Holders of Senior Indebtedness..... 114
SECTION 14.5.  Provisions Solely to Define Relative Rights................. 114
SECTION 14.6.  Trustee to Effectuate Subordination......................... 115
SECTION 14.7.  No Waiver of Subordination Provisions....................... 115
SECTION 14.8.  Notice to Trustee........................................... 115
SECTION 14.9.  Reliance on Judicial Order or Certificate of Liquidating
                Agent...................................................... 116
SECTION 14.10. Trustee Not Fiduciary for Holders of Senior Indebtedness.... 116
SECTION 14.11. Rights of Trustee as Holder of Senior Indebtedness;
                Preservation of Trustee's Rights........................... 117
SECTION 14.12. Article Applicable to Paying Agents......................... 117









____________________
Note:  This table of contents shall not, for any purpose, be deemed to be a part
       of the Indenture.




                                      vi
<PAGE>
 
Schedule A  The Guarantors

Exhibit A-1  Form of Security
Exhibit A-2  Form of Series B Security
Exhibit B    Global Securities Legend
Exhibit C    Transfer Letter
Exhibit D    Form of Notation on Security Relating to Guaranty
<PAGE>
 
          INDENTURE, dated as of January 22, 1999, among GROUP MAINTENANCE
AMERICA CORP., a corporation duly organized and existing under the laws of the
State of Texas (herein called the "Company"), having its principal office at 8
Greenway Plaza, Suite 1500, Houston, Texas 77046, the Subsidiaries of the
Company named in Schedule A as of the date of issuance (herein called the
"Initial Guarantors") and STATE STREET BANK AND TRUST COMPANY, as trustee
(herein called the "Trustee").

                            RECITALS OF THE COMPANY

          The Company has duly authorized the creation of an issue of 9 3/4%
Senior Subordinated Notes due 2009 (the "Securities") of substantially the tenor
and amount hereinafter set forth, and to provide therefor the Company has duly
authorized the execution and delivery of this Indenture.

          Each Guarantor desires to make the Guaranty provided herein and has
duly authorized the execution and delivery of this Indenture.

          All things necessary to make the Securities, when executed by the
Company, authenticated and delivered hereunder and duly issued by the Company,
and each Guaranty, when executed and delivered hereunder by each Guarantor, the
valid obligations of the Company and each Guarantor, and to make this Indenture
a valid agreement of the Company and each Guarantor, in accordance with their
and its terms, have been done.

                   NOW, THEREFORE, THIS INDENTURE WITNESSETH:

          For and in consideration of the premises and the purchase of the
Securities by the Holders (as defined herein) thereof, it is mutually covenanted
and agreed, for the equal and proportionate benefit of all Holders of the
Securities, as follows:

                                   ARTICLE I

                        Definitions and Other Provisions
                             of General Application

SECTION 1.1.  Definitions.

          For all purposes of this Indenture, except as otherwise expressly
provided or unless the context otherwise requires:
<PAGE>
 
             (1) the terms defined in this Article have the meanings assigned to
     them in this Article and include the plural as well as the singular;

             (2) all other terms used herein which are defined in the Trust
     Indenture Act, either directly or by reference therein, have the meanings
     assigned to them therein;

             (3) all accounting terms not otherwise defined herein have the
     meanings assigned to them in accordance with GAAP (whether or not such is
     indicated herein);

             (4) unless the context otherwise requires, any reference to an
     "Article" or a "Section" refers to an Article or Section, as the case may
     be, of this Indenture;

             (5) the words "herein," "hereof" and "hereunder" and other words of
     similar import refer to this Indenture as a whole and not to any particular
     Article, Section or other subdivision; and

             (6) each reference herein to a rule or form of the Commission shall
     mean such rule or form and any rule or form successor thereto, in each case
     as amended from time to time.

          Whenever this Indenture requires that a particular ratio or amount be
calculated with respect to a specified period after giving effect to certain
transactions or events on a pro forma basis, such calculation shall be made as
if the transactions or events occurred on the first day of such period, unless
otherwise specified.

          "Acquired Indebtedness means Indebtedness of a Person (a) assumed in
connection with an Asset Acquisition from such Person or (b) existing at the
time such Person becomes or is merged into a Subsidiary of any other Person
other than Indebtedness incurred in connection with, or in contemplation of,
such Asset Acquisition or such Person becoming a Subsidiary.

          "Act," when used with respect to any Holder, has the meaning specified
in Section 1.4.

          "Affiliate" means, with respect to any specified Person, (i) any other
Person directly or indirectly controlling or controlled by or under direct or
indirect common control with such specified Person, (ii) any other Person that
owns, directly or indirectly, 10% or more of such specified Person's Voting
Stock or (iii) any officer or director of (A) any such specified Person, (B) any
Subsidiary of such specified Person or (C) any Person described in clauses (i)
or (ii) above.

                                       2
<PAGE>
 
          "Asset Acquisition" means (a) an Investment by the Company or any
Restricted Subsidiary of the Company in any other Person pursuant to which such
Person shall become a Restricted Subsidiary of the Company, or shall be merged
with or into the Company or any Restricted Subsidiary of the Company, or (b) the
acquisition by the Company or any Restricted Subsidiary of the Company of the
assets of any Person which constitute all or substantially all of the assets of
such Person, any division or line of business of such Person or, other than in
the ordinary course of business, any other properties or assets of such Person.

          "Asset Sale" means any sale, issuance, conveyance, transfer, lease
(that has the effect of a disposition) or other disposition by the Company or
any Restricted Subsidiary of the Company to any Person other than the Company or
a Restricted Subsidiary of the Company, of (a) any Capital Stock of any
Restricted Subsidiary of the Company; (b) all or substantially all of the
properties and assets of any division or line of business of the Company or any
Restricted Subsidiary of the Company; or (c) any other properties or assets of
the Company or any Restricted Subsidiary outside of the ordinary course of
business, other than (i) sales of obsolete, damaged or used equipment or other
equipment or inventory sales in the ordinary course of business, (ii) sales of
assets in one or a series of related transactions for an aggregate consideration
of less than $5,000,000, (iii) sales of accounts receivable for financing
purposes, (iv) the grant in the ordinary course of business of any non-exclusive
license of patents, trademarks, registrations therefor and other similar
intellectual property, (v) any Lien (or foreclosure thereon) securing
Indebtedness to the extent that such Lien is granted in compliance with Section
10.12 and (vi) any Restricted Payment permitted by Section 10.9.  For the
purposes of this definition, the term "Asset Sale" shall not include any sale,
issuance, conveyance, transfer, lease or other disposition of properties or
assets that is governed by the provisions of Article VIII.

          "Asset Sale Offer" has the meaning specified in Section 10.14.

          "Asset Sale Offer Price" has the meaning specified in Section 10.14.

          "Asset Sale Purchase Date" has the meaning specified in Section 10.14.

          "Authenticating Agent" means any Person authorized by the Trustee
pursuant to Section 6.14 hereof to act on behalf of the Trustee to authenticate
Securities.

                                       3
<PAGE>
 
          "Average Life to Stated Maturity" means, with respect to any
Indebtedness, as at any date of determination, the quotient obtained by dividing
(i) the sum of the products of (a) the number of years from such date of such
determination to the date or dates of each successive scheduled principal
payment (including, without limitation, any sinking fund requirements) of such
Indebtedness and (b) the amount of each such principal payment by (ii) the sum
of all such principal payments.

          "Board of Directors" means the board of directors of a company or its
equivalent, including managers of a limited liability company, general partners
of a partnership or trustees of a business trust, or any duly authorized
committee thereof.

          "Board Resolution" means a copy of a resolution certified by the
Secretary or an Assistant Secretary of a company to have been duly adopted by
the Board of Directors of such company and to be in full force and effect on the
date of such certification, and delivered to the Trustee.

          "Business Day" means each Monday, Tuesday, Wednesday, Thursday and
Friday which is not a day on which banking institutions in the Borough of
Manhattan, The City of New York or the city in which the corporate trust office
of the Trustee is located are authorized or obligated by law or executive order
to close.

          "Capital Stock" means, with respect to any Person, any and all shares,
interests, participations, rights in or other equivalents (however designated)
of such Person's capital stock or equity participations, and any rights (other
than debt securities convertible into capital stock), warrants or options
exchangeable for or convertible into such capital stock and, including, without
limitation, with respect to partnerships, limited liability companies or
business trusts, ownership interests (whether general or limited) and any other
interest or participation that confers on a Person the right to receive a share
of the profits and losses of, or distributions of assets of, such partnerships,
limited liability companies or business trusts.

          "Capitalized Lease Obligation" means any obligation under a lease of
(or other agreement conveying the right to use) any property (whether real,
personal or mixed) that is required to be classified and accounted for as a
capital lease obligation under GAAP, and, for the purpose of this Indenture, the
amount of such obligation at any date shall be the capitalized amount thereof at
such date, determined in accordance with GAAP and the stated maturity thereof
shall be the date of the last payment of rent or any other amount due under such
lease 

                                       4
<PAGE>
 
prior to the first date upon which such lease may be terminated by the lessee
without payment of a penalty.

          "Cash Equivalents" means, at any time, (i) any evidence of
Indebtedness, maturing not more than one year after such time, issued or
guaranteed by the United States Government or any agency thereof, (b) commercial
paper, maturing not more than one year from the date of issue, or corporate
demand notes, in each case rated at least A-1 by S&P or P-1 by Moody's, (c) any
certificate of deposit (or time deposits represented by such certificates of
deposit) or bankers' acceptance, maturing not more than one year after such
time, or overnight Federal Funds transactions that are issued or sold by a
commercial banking institution that is a member of the Federal Reserve System
and has a combined capital and surplus and undivided profits of not less than
$500,000,000, (d) any repurchase agreement entered into with any commercial
banking institution of the stature referred to in clause (c) which (i) is
secured by a fully perfected security interest in any obligation of the type
described in any of clauses (a) through (c) and (ii) has a market value at the
time such repurchase agreement is entered into of not less than 100% of the
repurchase obligation of such commercial banking institution thereunder, (e)
investments in short term asset management accounts managed by any bank party to
the New Credit Agreement (or by affiliate of any such bank) which are invested
in indebtedness of any state or municipality of the United States or of the
District of Columbia and which are rated under one of the two highest ratings
then obtainable from S&P or by Moody's or investments of the types described in
clauses (a) through (d) above, and (f) investments in funds investing primarily
in investments of the types described in clauses (a) through (e) above.

          "Cedel" means Cedel Bank, Societe anonyme.

          "Change of Control" means the occurrence of any of the following
events: (a) any "person" or "group" (as such terms are used in Sections 13(d)
and 14(d) of the Exchange Act), is or becomes the "beneficial owner" (as defined
in Rules 13d-3 and 13d-5 under the Exchange Act, except that a person shall be
deemed to have "beneficial ownership" of all securities that such person has the
right to acquire, whether such right is exercisable immediately or only after
the passage of time), directly or indirectly, of more than 50% of the total
Voting Stock of the Company; (b) the Company consolidates with, or merges with
or into, another Person or sells, assigns, conveys, transfers, leases or
otherwise disposes of all or substantially all of its assets to any Person, or
any Person consolidates with, or merges with or into, the Company, in any such
event pursuant to a transaction in which the outstanding Voting Stock of the
Company is converted into or exchanged for 

                                       5
<PAGE>
 
cash, securities or other property, other than any such transaction where (i)
the outstanding Voting Stock of the Company is converted into or exchanged for
Voting Stock (other than Redeemable Capital Stock) of the surviving or
transferee corporation and (ii) immediately after such transaction no "person"
or "group" (as such terms are used in Section 13(d) and 14(d) of the Exchange
Act) is the "beneficial owner" (as defined in Rules 13d-3 and 13d-5 under the
Exchange Act, except that a person shall be deemed to have "beneficial
ownership" of all securities that such person has the right to acquire, whether
such right is exercisable immediately or only after the passage of time),
directly or indirectly, of more than 50% of the total Voting Stock of the
surviving or transferee corporation; (c) during any consecutive two-year period,
individuals who at the beginning of such period constituted the Board of
Directors of the Company (together with any new directors whose election by such
Board of Directors or whose nomination for election by the stockholders of the
Company was approved by a vote of 66-2/3% of the directors then still in office
who were either directors at the beginning of such period or whose election or
nomination for election was previously so approved) cease for any reason to
constitute a majority of the Board of Directors of the Company then in office;
or (d) the Company is liquidated or dissolved or adopts a plan of liquidation."

          "Change of Control Offer" has the meaning specified in Section 10.13.

          "Change of Control Purchase Date" has the meaning specified in Section
10.13.

          "Change of Control Purchase Price" has the meaning specified in
Section 10.13.

          "Code" means the Internal Revenue Code of 1986, as amended from time
to time, and the rules and regulations thereunder.

          "Commission" means the Securities and Exchange Commission, as from
time to time constituted, created under the Exchange Act, or, if at any time
after the execution of this instrument such Commission is not existing and
performing the duties now assigned to it under the Trust Indenture Act, then the
body performing such duties at such time.

          "Common Stock" means the common stock of the Company, par value $0.001
per share.

          "Company" means the Person named as the "Company" in the first
paragraph of this instrument until a successor Person shall have become such
pursuant to the applicable provisions of 

                                       6
<PAGE>
 
this Indenture and thereafter "Company" shall mean such successor Person.

          "Company Request or "Company Order" means a written request or order
signed in the name of the Company by its Chairman of the Board, its Chief
Executive Officer, its Chief Financial Officer, its President or a Vice
President, and by its Treasurer, an Assistant Treasurer, its Secretary or an
Assistant Secretary, and delivered to the Trustee or Paying Agent, as
applicable.

          "Consolidated Cash Flow Available for Fixed Charges" as of any date of
determination means, with respect to any Person for any period, (i) the sum of,
without duplication, the amounts for such period, taken as a single accounting
period, of (a) Consolidated Net Income, (b) Consolidated Non-cash Charges, (c)
Consolidated Interest Expense, (d) Consolidated Income Tax Expense (other than
income tax expense (either positive or negative) attributable to extraordinary
gains or losses), (e) one-fourth of Consolidated Rental Payments, and (f) if any
Asset Sale or Asset Acquisition shall have occurred since the first day of any
four-quarter period for which "Consolidated Cash Flow Available for Fixed
Charges" is being calculated (including to the date of calculation) (A) the
amount of any compensation, remuneration or other benefit paid or provided to
any employee, consultant, Affiliate or equity owner of the entity involved in
any such Asset Acquisition to the extent such costs are eliminated or reduced
(or public announcement has been made of the intent to eliminate or reduce such
costs) prior to the date of such calculation and not replaced and (B) the amount
of any reduction in general, administrative or overhead costs of the entity
involved in any such Asset Acquisition, to the extent such amounts under clauses
(A) and (B) would be permitted to be eliminated in a pro forma income statement
prepared in accordance with Rule 11-02 of Regulation S-X, less (ii) the sum of
(x) non-cash items increasing Consolidated Net Income and (y) all cash payments
during such period relating to non-cash charges that were added back in
determining Consolidated Cash Flow Available for Fixed Charges in the most
recent Four Quarter Period (as defined in the definition of "Consolidated Fixed
Charge Coverage Ratio").

          "Consolidated Fixed Charge Coverage Ratio" as of any date of
determination means, with respect to any Person, the ratio of the aggregate
amount of Consolidated Cash Flow Available for Fixed Charges of such Person for
the four full fiscal quarters, treated as one period, for which financial
information in respect thereof is available immediately preceding the date of
the transaction (the "Transaction Date") giving rise to the need to calculate
the Consolidated Fixed Charge Coverage Ratio (such four full fiscal quarter
period being referred to 

                                       7
<PAGE>
 
herein as the "Four Quarter Period") to the aggregate amount of Consolidated
Fixed Charges of such Person for the Four Quarter Period. In calculating
"Consolidated Fixed Charges" for purposes of determining the denominator (but
not the numerator) of this "Consolidated Fixed Charge Coverage Ratio", (i)
interest on outstanding Indebtedness determined on a fluctuating basis as of the
Transaction Date and which will continue to be so determined thereafter shall be
deemed to have accrued at a fixed rate per annum equal to the rate of interest
on such Indebtedness in effect on the Transaction Date; and (ii) if interest on
any Indebtedness actually incurred on the Transaction Date may optionally be
determined at an interest rate based upon a factor of a prime or similar rate, a
eurocurrency interbank offered rate, or other rates, then the interest rate in
effect on the Transaction Date will be deemed to have been in effect during the
Four Quarter Period. If such Person or any of its Restricted Subsidiaries
directly or indirectly guarantees Indebtedness of a third Person, the above
clause shall give effect to the incurrence of such guaranteed Indebtedness as if
such Person or such Subsidiary had directly incurred or otherwise assumed such
guaranteed Indebtedness.

          "Consolidated Fixed Charges" means, with respect to any Person for any
period, the sum of, without duplication, the amounts for such period of (i)
Consolidated Interest Expense, (ii) the aggregate amount of dividends and other
distributions paid or accrued during such period in respect of Redeemable
Capital Stock of such Person and its Restricted Subsidiaries on a consolidated
basis and (iii) one-fourth of Consolidated Rental Payments.

          "Consolidated Income Tax Expense" means, with respect to any Person
for any period, the provision for federal, state, local and foreign income taxes
of such Person and its Restricted Subsidiaries for such period as determined on
a consolidated basis in accordance with GAAP.

          "Consolidated Interest Expense" means, with respect to any Person for
any period, without duplication, the sum of (i) the interest expense of such
Person and its Restricted Subsidiaries for such period as determined on a
consolidated basis in accordance with GAAP, including, without limitation, (a)
any amortization of debt discount, (b) the net cost under Interest Rate
Protection Obligations (including any amortization of discounts), (c) the
interest portion of any deferred payment obligation, (d) all commissions,
discounts and other fees and charges owed with respect to letters of credit,
bankers' acceptance financing or similar facilities and (e) all accrued interest
and (ii) the interest component of Capitalized Lease Obligations paid, accrued
and/or scheduled to be paid or accrued by such Person and its Restricted
Subsidiaries during such

                                       8
<PAGE>
 
period as determined on a consolidated basis in accordance with GAAP.

          "Consolidated Net Income" means, with respect to any Person, for any
period, the consolidated net income (or loss) of such Person and its Restricted
Subsidiaries for such period as determined in accordance with GAAP, adjusted, to
the extent included in calculating such net income, by excluding, without
duplication, (i) all extraordinary gains or losses (net of fees and expenses
relating to the transaction giving rise thereto), (ii) the portion of net income
of such Person and its Restricted Subsidiaries allocable to minority interests
in unconsolidated Persons or to Investments in Unrestricted Subsidiaries to the
extent that cash dividends or distributions have not actually been received by
such Person or one of its Restricted Subsidiaries, (iii) net income (or loss) of
any Person combined with such Person or one of its Restricted Subsidiaries on a
"pooling of interests" basis attributable to any period prior to the date of
combination, (iv) gains or losses in respect of any Asset Sales by such Person
or one of its Restricted Subsidiaries (net of fees and expenses relating to the
transaction giving rise thereto), on an after-tax basis, (v) the net income of
any Restricted Subsidiary of such Person to the extent that the declaration of
dividends or similar distributions by that Restricted Subsidiary of that income
is not at the time permitted, directly or indirectly, by operation of the terms
of its charter or any agreement, instrument, judgment, decree, order, statute,
rule or governmental regulations applicable to that Restricted Subsidiary or its
stockholders and (vi) any gain or loss realized as a result of the cumulative
effect of a change in accounting principles.

          "Consolidated Non-cash Charges" means, with respect to any Person for
any period, the aggregate depreciation, amortization (including amortization of
goodwill and other intangibles) and other non-cash expenses of such Person and
its Restricted Subsidiaries reducing Consolidated Net Income of such Person and
its Restricted Subsidiaries for such period, determined on a consolidated basis
in accordance with GAAP (excluding any such charges constituting an
extraordinary item or loss).

          "Consolidated Rental Payments" of any Person means, for any period,
the aggregate rental obligations of such Person and its Restricted Subsidiaries
(not including taxes, insurance, maintenance and similar expenses that the
lessee is obligated to pay under the terms of the relevant leases), determined
on a consolidated basis in accordance with GAAP, payable in respect of such
period (net of income from subleases thereof, not including taxes, insurance,
maintenance and similar expenses that the sublessee is obligated to pay under
the 

                                       9
<PAGE>
 
terms of such sublease), whether or not such obligations are reflected as
liabilities or commitments on a consolidated balance sheet of such Person and
its Restricted Subsidiaries or in the notes thereto, excluding, however, in any
event, (i) that portion of Consolidated Interest Expense of such Person
representing payments by such Person or any of its Restricted Subsidiaries in
respect of Capitalized Lease Obligations (net of payments to such Person or any
of its Restricted Subsidiaries under subleases qualifying as capitalized lease
subleases to the extent that such payments would be deducted in determining
Consolidated Interest Expense) and (ii) the aggregate amount of amortization of
obligations of such Person and its Restricted Subsidiaries in respect of such
Capitalized Lease Obligations for such period (net of payments to such Person or
any of its Restricted Subsidiaries and subleases qualifying as capitalized lease
subleases to the extent that such payments could be deducted in determining such
amortization amount).

          "control" when used with respect to any specified Person means the
power to direct the management and policies of such Person, directly or
indirectly, whether through ownership of voting securities, by contract or
otherwise; and the terms "controlling" and "controlled" have meanings
correlative to the foregoing.

          "Corporate Trust Office" means the office of the Trustee at which at
any particular time its corporate trust business shall be administered, which
address as of the date of this Indenture is located at Goodwin Square, 23rd
Floor, 225 Asylum Street, Hartford, CT 06103, Attention: Corporate Trust,
Administration.

          "corporation" means (except in the definition of "Subsidiary") a
corporation, association, company, joint-stock company or business trust.

          "Covenant Defeasance" has the meaning specified in Section 12.3.

          "Credit Facility" means one or more debt or commercial paper
facilities with banks or other institutional lenders (including the New Credit
Agreement) providing for revolving credit loans, term loans, receivables or
inventory financing (including through the sale of receivables or inventory to
such lenders or to special purpose, bankruptcy remote entities formed to borrow
from such lenders against such receivables or inventory) or letters of credit,
in each case together with any amendments, supplements, modifications (including
by any extension of the maturity thereof), substitutions, refinancing or
replacements thereof by a lender or syndicate of lenders in one or more
successive transactions (including any such transaction 

                                       10
<PAGE>
 
that changes the amount available thereunder, replaces such agreement or
document, or provides for other agents or lenders).

          "Default" means any event that is, or after notice or passage of time
or both would be, an Event of Default.

          "Defeasance" has the meaning specified in Section 12.2.

          "Depository" means The Depositary Trust Company, or its successor.

          "Designated Guarantor Senior Indebtedness" means, with respect to a
Guarantor, amounts owing by such Guarantor under the Credit Facility and
guarantees by such Guarantor of Designated Senior Indebtedness.

          "Designated Senior Indebtedness" means (i) all Indebtedness under the
New Credit Agreement and (ii) any other issue of Senior Indebtedness which (a)
at the time of the determination is equal to or greater than $25,000,000 in
aggregate principal amount and (b) is specifically designated by the Company in
the instrument evidencing such Senior Indebtedness as "Designated Senior
Indebtedness."

          "Disinterested Member of the Board of Directors of the Company" means,
with respect to any transaction or series of transactions, a member of the Board
of Directors of the Company other than a member who has any material direct or
indirect financial interest in or with respect to such transaction or series of
transactions or who is an Affiliate, officer, director or an employee of any
Person (other than the Company) who has any direct or indirect financial
interest in or with respect to such transaction or series of transactions.

          "Distribution Compliance Period" has the meaning set forth in Section
3.14.

          "Equity Offering" means a sale of Common Stock of the Company net cash
proceeds to the Company of at least $25,000,000.

          "Euroclear" means Morgan Guaranty Trust Company of New York, Brussels
office, as operator of the Euroclear System.

          "Event of Default" has the meaning specified in Section 5.1.

          "Excess Proceeds" has the meaning specified in Section 10.14.

                                       11
<PAGE>
 
          "Exchange Act" means the Securities Exchange Act of 1934, as amended.

          "Exchange Securities" has the meaning specified in the form of the
Security in Exhibit A.

          "Expiration Date" shall have the meaning set forth in the definition
of "Offer to Purchase."

          "Fair Market Value" means, with respect to any asset, the price (after
taking into account any liabilities relating to such assets) which could be
negotiated in an arm's-length free market transaction between a willing seller
and a willing buyer, neither of which is under pressure or compulsion to
complete the transaction.  Fair Market Value shall be determined by the Board of
Directors of the Company in good faith.

          "Federal Bankruptcy Code" means Title 11, U.S. Code.

          "Foreign Restricted Subsidiary" means a Restricted Subsidiary which is
not organized under the laws of the United States, or any possession or
territory thereof, any State of the United States, or the District of Columbia.

          "GAAP" means generally accepted accounting principles set forth in the
opinions and pronouncements of the Accounting Principles Board of the American
Institute of Certified Public Accountants and statements and pronouncements of
the Financial Accounting Standards Board or in such other statements by such
other entity as may be approved by a significant segment of the accounting
profession of the United States of America, which are applicable at the date of
the Indenture.

          "Global Securities" means one or more Regulation S Global Securities
and 144A Global Securities.

          "guarantee" means, as applied to any obligation, (i) a guarantee
(other than by endorsement of negotiable instruments for collection in the
ordinary course of business), direct or indirect, in any manner, of any part or
all of such obligation and (ii) an agreement, direct or indirect, contingent or
otherwise, the practical effect of which is to assure in any way the payment or
performance (or payment of damages in the event of nonperformance) of all or any
part of such obligation, including, without limiting the foregoing, the payment
of amounts available to be drawn down under letters of credit of another Person.
The term "guarantee" used as a verb has a corresponding meaning.  The term
"guarantor" shall mean any Person providing a guarantee of any obligation.

                                       12
<PAGE>
 
          "Guarantor Senior Indebtedness" of a Guarantor means the principal of,
premium, if any, and interest on any Indebtedness of such Guarantor, whether
outstanding on the Issue Date or thereafter created, incurred or assumed,
unless, in the case of any particular Indebtedness, the instrument creating or
evidencing the same or pursuant to which the same is outstanding expressly
provides that such Indebtedness shall not be senior in right of payment to such
Guarantor's Guaranty.  Without limiting the generality of the foregoing, (x)
"Guarantor Senior Indebtedness" shall include the principal of, premium, if any,
and interest on all obligations of every nature of such Guarantor from time to
time owed to the lenders under the New Credit Agreement, including, without
limitation, principal of and interest on, and all fees, indemnities and expenses
payable under the New Credit Agreement, and (y) in the case of amounts owing
under the New Credit Agreement and guarantees of Designated Senior Indebtedness,
"Guarantor Senior Indebtedness" shall include interest accruing thereon
subsequent to the occurrence of any Event of Default specified in clause (7) or
(8) of Section 5.1 relating to such Guarantor, whether or not the claim for such
interest is allowed under any applicable Bankruptcy Code.  Notwithstanding the
foregoing, "Guarantor Senior Indebtedness" shall not include (a) Indebtedness
evidenced by the Notes or the Guarantees, (b) Indebtedness that is expressly
subordinate or junior in right of payment to any Indebtedness of such Guarantor,
(c) Indebtedness which, when incurred and without respect to any election under
Section 1111(b) of Title 11, United States Code, is without recourse to such
Guarantor, (d) Indebtedness which is represented by Redeemable Capital Stock,
(e) Indebtedness for goods, materials or services purchased in the ordinary
course of business or Indebtedness consisting of trade payables or other current
liabilities (other than any current liabilities owing under the New Credit
Agreement, or the current portion of any long-term Indebtedness which would
constitute Guarantor Senior Indebtedness but for the operation of this clause
(e)), (f) Indebtedness of or amounts owed by such Guarantor for compensation to
employees or for services rendered to such Guarantor, (g) any liability for
federal, state, local or other taxes owed or owing by such Guarantor, (h)
Indebtedness of such Guarantor to the Company or a Subsidiary of the Company or
any other Affiliate of the Company or any of such Affiliate's Subsidiaries, (i)
that portion of any Indebtedness which is incurred by such Guarantor in
violation of this Indenture, (j) Indebtedness of such Guarantor that by
operation of law is subordinate to any general unsecured obligations of such
Guarantor and (k) amounts owing under leases.

          "Guarantor Subordinated Indebtedness" means, with respect to a
Guarantor, indebtedness and other obligations of such Guarantor which are
expressly subordinated in right of payment to such Guarantor's Guaranty.

                                       13
<PAGE>
 
          "Guarantors" shall mean each Initial Guarantor and each future
Subsidiary that is not designated an Unrestricted Subsidiary in accordance with
Section 10.18 herein.

          "Guaranty" means each guaranty of the Securities contained in Article
XIII given by each Guarantor.

          "Guaranty Obligations" means, with respect to each Guarantor, the
obligations of such Guarantor under Article XIII.

          "Holder" means a Person in whose name a Security is registered in the
Security Register.

          "Indebtedness" means, with respect to any Person, without duplication,
(a) all liabilities of such Person for borrowed money or for the deferred
purchase price of property or services, excluding any trade payables and other
accrued current liabilities incurred in the ordinary course of business, but
including, without limitation, all obligations, contingent or otherwise, of such
Person in connection with any letters of credit, banker's acceptance or other
similar credit transaction, (b) all obligations of such Person evidenced by
bonds, notes, debentures or other similar instruments, (c) all indebtedness
created or arising under any conditional sale or other title retention agreement
with respect to property acquired by such Person (even if the rights and
remedies of the seller or lender under such agreement in the event of default
are limited to repossession or sale of such property), but excluding
consignments, trade accounts payable arising in the ordinary course of business,
(d) all Capitalized Lease Obligations of such Person, (e) all Indebtedness
referred to in the preceding clauses of other Persons and all dividends of other
Persons, the payment of which is secured by (or for which the holder of such
Indebtedness has an existing right, contingent or otherwise, to be secured by)
any Lien upon property (including, without limitation, accounts and contract
rights) owned by such Person, even though such Person has not assumed or become
liable for the payment of such Indebtedness (the amount of such obligation being
deemed to be the lesser of the Fair Market Value of such property or asset or
the amount of the obligation so secured), (f) all guarantees of Indebtedness
referred to in this definition by such Person, (g) all Redeemable Capital Stock
of such Person valued at the greater of its voluntary or involuntary maximum
fixed repurchase price plus accrued dividends, (h) all Interest Rate Protection
Obligations of such Person, and (i) any amendment, supplement, modification,
deferral, renewal, extension, refinancing or refunding of any liability of the
types referred to in clauses (a) through (h) above; provided, however, that
Indebtedness shall not include (i) any holdback or escrow of the purchase price
of property, 

                                       14
<PAGE>
 
services, businesses or assets, (ii) any contingent payment obligations incurred
in connection with the acquisition of assets or businesses, which are contingent
on the performance of the assets or businesses so acquired or (iii) obligations
under performance bonds, performance guarantees, surety bonds, appeal bonds,
security deposits or similar obligations. For purposes hereof, the "maximum
fixed repurchase price" of any Redeemable Capital Stock which does not have a
fixed repurchase price shall be calculated in accordance with the terms of such
Redeemable Capital Stock as if such Redeemable Capital Stock were purchased on
any date on which Indebtedness shall be required to be determined pursuant
hereto, and if such price is based upon, or measured by, the fair market value
of such Redeemable Capital Stock, such fair market value shall be approved in
good faith by the Board of Directors of the issuer of such Redeemable Capital
Stock.

          "Indenture" means this instrument as originally executed or as it may
from time to time be supplemented or amended by one or more indentures
supplemental hereto entered into pursuant to the applicable provisions hereof,
including, for all purposes of this instrument and any such supplemental
indenture, the provisions of the Trust Indenture Act that are deemed to be a
part of and govern this instrument and any such supplemental indenture,
respectively.

          "Initial Guarantors" see introduction to this Indenture.

          "Initial Purchasers" means Merrill Lynch, NationsBanc Montgomery
Securities LLC, ABN Amro Incorporated, The Robinson-Humphrey Company, LLC,
Jefferies & Company, Inc. and U.S. Bancorp Libra, a division of U.S. Bancorp
Investments, Inc.

          "Initial Securities" means the 9 3/4% Senior Subordinated Notes due
2009, Series A, of the Company.

          "Interest Payment Date" means the Stated Maturity of an installment of
interest on the Securities.

          "Interest Rate Protection Agreement" means, with respect to any
Person, any arrangement with any other Person whereby, directly or indirectly,
such Person is entitled to receive from time to time periodic payments
calculated by applying either a floating or a fixed rate of interest on a stated
notional amount in exchange for periodic payments made by such Person calculated
by applying a fixed or a floating rate of interest on the same notional amount
and shall include, without limitation, interest rate swaps, caps, floors,
collars and similar agreements.

                                       15
<PAGE>
 
          "Interest Rate Protection Obligations" means the net obligations of
any Person pursuant to any Interest Rate Protection Agreements.

          "Investment" means, with respect to any Person, any direct or indirect
loan or other extension of credit (including, without limitation, a guarantee)
or capital contribution to (by means of any transfer of cash or other property
to others or any payment for property or services for the account or use of
others), but other than advances to customers in the ordinary course of business
recorded as an account receivable in accordance with GAAP on the books of the
Person making the advance, or any purchase or acquisition by such Person of any
Capital Stock, bonds, notes, debentures or other securities or evidences of
Indebtedness issued by, any other Person.

          "Issue Date" means the original date of issuance of the Initial
Securities.

          "Lien" means any mortgage, charge, pledge, lien (statutory or other),
security interest, hypothecation, assignment for security, claim or other
encumbrance upon or with respect to any property of any kind.  A Person shall be
deemed to own subject to a Lien any property which such Person has acquired or
holds subject to the interest of a vendor or lessor under any conditional sale
agreement (other than a consignment), capital lease or other title retention
agreement.

          "Maturity Date" means January 15, 2009.

          "Merrill Lynch" means Merrill Lynch, Pierce, Fenner & Smith
Incorporated.

          "Moody's" means Moody's Investors Service, Inc. and its successors.

          "Net Cash Proceeds" means, with respect to any Asset Sale, the
proceeds thereof in the form of cash or Cash Equivalents including payments in
respect of deferred payment obligations when received in the form of cash or
Cash Equivalents (except to the extent that such obligations are financed or
sold with recourse to the Company or any Restricted Subsidiary of the Company)
net of (i) brokerage commissions and other fees and expenses (including, without
limitation, fees and expenses of legal counsel and investment bankers, recording
fees, transfer fees and appraisers' fees) related to such Asset Sale, (ii)
provisions for all taxes payable as a result of such Asset Sale, (iii) amounts
required to be paid to any Person (other than the Company or any Restricted
Subsidiary of the Company) owning a beneficial interest in the assets subject to
the Asset Sale, (iv) payments made to retire Indebtedness where payment 

                                       16
<PAGE>
 
of such Indebtedness is secured by the assets or properties the subject of such
Asset Sale, and (v) appropriate amounts to be provided by the Company or any
Restricted Subsidiary of the Company, as the case may be, as a reserve required
in accordance with GAAP against any liabilities associated with such Asset Sale
and retained by the Company or any Restricted Subsidiary of the Company, as the
case may be, after such Asset Sale, including, without limitation, pension and
other post-employment benefit liabilities, liabilities related to environmental
matters and liabilities under any indemnification obligations associated with
such Asset Sale.

          "New Credit Agreement" means the Second Amended and Restated Credit
Agreement dated as of October 15, 1998 among the Company, the Subsidiaries of
the Company listed as guarantors therein, Chase Bank of Texas, National
Association, as the Agent, Bank of America Texas, N.A., as co-agent, Paribas, as
syndication agent and ABN AMRO Bank, N.A., as documentation agent, and the Banks
named therein, including any notes, guarantees, collateral documents,
instruments and agreements executed in connection therewith, and in each case as
amended (including any amendment and restatement thereof), modified, extended,
deferred, renewed, refunded, substituted or replaced or refinanced from time to
time, including any agreement extending the maturity of, refinancing, replacing
or otherwise restructuring (including increasing the amount of available
borrowings thereunder or adding Subsidiaries of the Company as additional
borrowers or guarantors thereunder) all or any portion of the Indebtedness under
such agreement or any successor or replacement agreement and whether by the same
or any other agents, creditor, lender or group of creditors or lenders.

          "Non-U.S. Person" means a Person that is not a U.S. Person as such
term is defined in Regulation S.

          "Notice of Default" means a written notice of the kind specified in
Section 5.2.

          "Offer" means a Change of Control Offer or an Asset Sale Offer.

          "Offer to Purchase" means an Offer sent by or on behalf of the Company
by first-class mail, postage prepaid, to each Holder of Securities at its
address appearing in the-register for the Securities on the date of the Offer
offering to purchase up to the principal amount of Securities specified in such
Offer at the purchase price specified in such Offer (as determined pursuant to
this Indenture).  Unless otherwise provided in Section 10.13 or 10.14 or
otherwise required by applicable law, the Offer shall specify an expiration date
(the "Expiration Date") of the Offer to Purchase, which shall be not 

                                       17
<PAGE>
 
less than 20 Business Days nor more than 60 days after the date of such Offer
(or such later date as may be necessary for the Company to comply with the
Exchange Act), and a settlement date (the "Purchase Date") for purchase of
Securities to occur no later than five Business Days after the Expiration Date.
The Company shall notify the Trustee at least 15 Business Days (or such shorter
period as is acceptable to the Trustee) prior to the mailing of the Offer of the
Company's obligation to make an Offer to Purchase, and the Offer shall be mailed
by the Company or, at the Company's request, by the Trustee in the name and at
the expense of the Company. The Offer shall contain all the information required
by applicable law to be included therein. The Offer shall contain all
instructions and materials necessary to enable such Holders to tender Securities
pursuant to the Offer to Purchase. The Offer shall also state:

             (1) the Section of this Indenture pursuant to which the Offer to
     Purchase is being made;

             (2) the Expiration Date and the Purchase Date;

             (3) the purchase price to be paid by the Company for each $1,000
     aggregate principal amount of Securities accepted for payment (as specified
     pursuant to this Indenture) (the "Purchase Price"); and the amount of
     accrued and unpaid interest to be paid;

             (4) that the Holder may tender all or any portion of the Securities
     registered in the name of such Holder and that any portion of a Security
     tendered must be tendered in an integral multiple of $1,000 principal
     amount;

             (5) the place or places where Securities are to be surrendered for
     tender pursuant to the Offer to Purchase;

             (6) that interest on any Security not tendered or tendered but not
     purchased by the Company pursuant to the Offer to Purchase will continue to
     accrue;

             (7) that on the Purchase Date the Purchase Price will become due
     and payable upon each Security being accepted for payment pursuant to the
     Offer to Purchase and that interest thereon shall cease to accrue on and
     after the Purchase Date;

             (8) that each Holder electing to tender all or any portion of a
     Security pursuant to the Offer to Purchase will be required to surrender
     such Security at the place or places specified in the Offer prior to the
     close of business on the Expiration Date (such Security being, if the
     Company or the Trustee so requires, duly endorsed by, 

                                       18
<PAGE>
 
     or accompanied by a written instrument of transfer in form satisfactory to
     the Company and the Trustee duly executed by the Holder thereof or his
     attorney duly authorized in writing);

             (9) that Holders will be entitled to withdraw all or any portion of
     Securities tendered if the Company (or its Paying Agent) receives, not
     later than the close of business on the fifth Business Day next preceding
     the Expiration Date, a facsimile transmission or letter setting forth the
     name of the Holder, the principal amount of the Security the Holder
     tendered, the certificate number of the Security the Holder tendered and a
     statement that such Holder is withdrawing all or a portion of his tender;

             (10) that (a) if Securities purchasable at an aggregate Purchase
     Price less than or equal to the Purchase Amount are duly tendered and not
     withdrawn pursuant to the Offer to Purchase, the Company shall purchase all
     such Securities and (b) if Securities purchasable at an aggregate Purchase
     Price in excess of the Purchase Amount are tendered and not withdrawn
     pursuant to the Offer to Purchase, the Company shall purchase Securities on
     a pro rata basis based on the Purchase Price therefor or such other method
     as the Company shall deem fair and appropriate (subject in each case to
     applicable rules of the Depositary and any securities exchange upon which
     the Securities may then be listed), with such adjustments as may be deemed
     appropriate so that only Securities in denominations of $1,000 principal
     face amount or integral multiples thereof shall be purchased; and

             (11) that in the case of a Holder whose Security is purchased only
     in part, the Company shall execute and the Trustee shall authenticate and
     deliver to the Holder of such Security without service charge, a new
     Security or Securities, of any authorized denomination as requested by such
     Holder, in an aggregate principal amount equal to and in exchange for the
     unpurchased portion of the Security so tendered.

An Offer to Purchase shall be governed by and effected in accordance with the
provisions of this Indenture pertaining to the type of Offer to which it
relates.

          "Offering Memorandum" means the Offering Memorandum dated January 19,
1999 pursuant to which the Securities were offered, and any supplement thereto.

          "Officer's Certificate" means a certificate signed by the Chairman of
the Board, the Chief Executive Officer, the 

                                       19
<PAGE>
 
President or a Vice President, the Chief Financial Officer, the Treasurer, an
Assistant Treasurer, the Secretary or an Assistant Secretary, of the Company,
and delivered to the Trustee. One of the officers signing an Officer's
Certificate given pursuant to Section 10.20 shall be the principal executive,
financial or accounting officer of the Company.

          "144A Global Security" means a permanent global security in registered
form representing the aggregate principal amount of Securities sold in reliance
on Rule 144A under the Securities Act.

          "Opinion of Counsel" means a written opinion of counsel, who may be
counsel for the Company, and who shall be acceptable to the Trustee.

          "Outstanding," when used with respect to Securities, means, as of the
date of determination, all Securities theretofore authenticated and delivered
under this Indenture, except:

             (i) Securities theretofore cancelled by the Trustee or delivered to
     the Trustee for cancellation;

             (ii) Securities for whose payment or redemption money in the
     necessary amount has been theretofore deposited with the Trustee or any
     Paying Agent (other than the Company) in trust or set aside and segregated
     in trust by the Company (if the Company shall act as its own Paying Agent)
     for the Holders of such Securities; provided that, if such Securities are
     to be redeemed, notice of such redemption has been duly given pursuant to
     this Indenture or provision therefor satisfactory to the Trustee has been
     made;

             (iii)  Securities which have been paid pursuant to Section 3.6 or
     in exchange for or in lieu of which other Securities have been
     authenticated and delivered pursuant to this Indenture, other than any such
     Securities in respect of which there shall have been presented to the
     Trustee proof satisfactory to it that such Securities are held by a bona
     fide purchaser in whose hands such Securities are valid obligations of the
     Company; and

             (iv) Securities as to which Defeasance has been effected pursuant
     to Section 12.2;

provided, however, that in determining whether the Holders of the requisite
principal amount of the Outstanding Securities have given, made or taken any
request, demand, authorization, direction, notice, consent, waiver or other
action hereunder as of any date, Securities owned by the Company or any other
obligor upon the Securities or any Affiliate of the Company or of 

                                       20
<PAGE>
 
such other obligor shall be disregarded and deemed not to be Outstanding (it
being understood that Securities to be acquired by the Company pursuant to an
Offer or other offer to purchase shall not be deemed to be owned by the Company
until legal title to such Securities passes to the Company), except that, in
determining whether the Trustee shall be protected in relying upon any such
request, demand, authorization, direction, notice, consent, waiver or other
action, only Securities which a Responsible Officer of the Trustee actually
knows to be so owned shall be so disregarded. Securities so owned which have
been pledged in good faith may be regarded as Outstanding if the pledgee
establishes to the satisfaction of the Trustee the pledgee's right so to act
with respect to such Securities and that the pledgee is not the Company or any
other obligor upon the Securities or any Affiliate of the Company or of such
other obligor.

          "Paying Agent" means any Person authorized by the Company to pay the
principal of (and premium, if any) or interest on any Securities on behalf of
the Company.

          "Permitted Indebtedness" means, without duplication:

          (a) Indebtedness of the Company and the Guarantors evidenced by up to
     $130,000,000 principal amount of the Securities and the Guarantees;

          (b) Indebtedness of the Company and Restricted Subsidiaries under one
     or more Credit Facilities in an aggregate principal amount at any one time
     outstanding not to exceed $300,000,000 less any amounts permanently repaid
     in accordance with Section 10.14;

          (c) Indebtedness of the Company or any Restricted Subsidiary
     outstanding on the Issue Date;

          (d) Indebtedness of the Company or any Restricted Subsidiary of the
     Company incurred in respect of bankers' acceptances and letters of credit
     in the ordinary course of business, including Indebtedness evidenced by
     letters of credit issued in the ordinary course of business to support the
     insurance or self-insurance obligations of the Company or any of its
     Restricted Subsidiaries (including to secure workers' compensation and
     other similar insurance coverages), in an aggregate amount not to exceed
     $30,000,000 at any time; but excluding letters of credit issued in respect
     of or to secure money borrowed;

          (e) (i) Interest Rate Protection Obligations of the Company or a
     Guarantor covering Indebtedness of the Company or a Guarantor and (ii)
     Interest Rate Protection 

                                       21
<PAGE>
 
     Obligations of any Restricted Subsidiary covering Permitted Indebtedness or
     Acquired Indebtedness of such Restricted Subsidiary; provided that, in the
     case of either clause (i) or (ii), (x) any Indebtedness to which any such
     Interest Rate Protection Obligations correspond bears interest at
     fluctuating interest rates and is otherwise permitted to be incurred under
     Section 10.8 and (y) the notional principal amount of any such Interest
     Rate Protection Obligations that exceeds the principal amount of the
     Indebtedness to which such Interest Rate Protection Obligations relate
     shall not constitute Permitted Indebtedness;

          (f) Indebtedness of a Restricted Subsidiary owed to and held by the
     Company or another Restricted Subsidiary, except that (i) any transfer of
     such Indebtedness by the Company or a Restricted Subsidiary (other than to
     the Company or another Restricted Subsidiary), (ii) the sale, transfer or
     other disposition by the Company or any Restricted Subsidiary of the
     Company of Capital Stock of a Restricted Subsidiary which is owed
     Indebtedness of another Restricted Subsidiary such that it shall no longer
     be a Restricted Subsidiary and (iii) the designation of a Restricted
     Subsidiary which is owed Indebtedness of another Restricted Subsidiary as
     an Unrestricted Subsidiary shall, in each case, be an incurrence of
     Indebtedness by such Restricted Subsidiary subject to the other provisions
     of this Indenture;

          (g) Indebtedness of the Company owed to and held by a Restricted
     Subsidiary which is unsecured and subordinated in right of payment to the
     payment and performance of the obligations of the Company under this
     Indenture and the Notes, except that (i) any transfer of such Indebtedness
     by a Restricted Subsidiary (other than to another Restricted Subsidiary)
     and (ii) the sale, transfer or other disposition by the Company or any
     Restricted Subsidiary of the Company of Capital Stock of a Restricted
     Subsidiary which is owed Indebtedness of the Company such that it shall no
     longer be a Restricted Subsidiary and (iii) the designation of a Restricted
     Subsidiary which is owed Indebtedness of the Company shall, in each case,
     be an incurrence of Indebtedness by the Company, subject to the other
     provisions of this Indenture;

          (h) Indebtedness arising from the honoring by a bank or other
     financial institution of a check, draft or similar instrument inadvertently
     (except in the case of daylight overdrafts) drawn against insufficient
     funds in the ordinary course of business; provided, however, that such
     Indebtedness is extinguished within five Business Days of incurrence;

                                       22
<PAGE>
 
          (i) Indebtedness of the Company or any Restricted Subsidiary, in
     addition to that described in clauses (a) through (h) of this definition,
     in an aggregate principal amount outstanding at any time not to exceed
     $20,000,000;

          (j) (i) Indebtedness of the Company the proceeds of which are used
     solely to refinance (whether by amendment, renewal, extension or refunding)
     Indebtedness of the Company or any of its Restricted Subsidiaries incurred
     pursuant to the Consolidated Fixed Charge Coverage Ratio test of the
     proviso of Section 10.8 or clauses (a), (c) or (j) of this definition and
     (ii) Indebtedness of any Restricted Subsidiary of the Company the proceeds
     of which are used solely to refinance (whether by amendment, renewal,
     extension or refunding) Indebtedness of such Restricted Subsidiary incurred
     pursuant to the Consolidated Fixed Charge Coverage Ratio test of the
     proviso of Section 10.8 or clauses (a), (c) or (j) of this definition (in
     each case other than the Indebtedness to be refinanced, redeemed or retired
     as described under "Use of Proceeds" in the Offering Memorandum); provided,
     however, that (x) the principal amount of Indebtedness incurred pursuant to
     this clause (j) (or, if such Indebtedness provides for an amount less than
     the principal amount thereof to be due and payable upon a declaration of
     acceleration of the maturity thereof, the original issue price of such
     Indebtedness) shall not exceed the sum of principal amount of Indebtedness
     so refinanced, plus the amount of any premium required to be paid in
     connection with such refinancing pursuant to the terms of such Indebtedness
     or the amount of any premium reasonably determined by the Company as
     necessary to accomplish such refinancing by means of a tender offer or
     privately negotiated purchase, plus the amount of expenses in connection
     therewith, and (y) in the case of Indebtedness incurred by the Company
     pursuant to this clause (j) to refinance Subordinated Indebtedness, such
     Indebtedness (A) has no scheduled principal payment prior to the 91st day
     after the Maturity Date, (B) has an Average Life to Stated Maturity greater
     than the remaining Average Life to Stated Maturity of the Securities and
     (C) is subordinated to the Securities in the same manner and to the same
     extent that the Subordinated Indebtedness being refinanced is subordinated
     to the Securities;

          (k) Indebtedness arising from agreements of the Company or any
     Restricted Subsidiary providing for indemnification, adjustment or holdback
     of purchase price or similar obligations, in each case, incurred or assumed
     in connection with the acquisition or disposition of any business, assets
     or a Subsidiary, other than guarantees of Indebtedness incurred by any
     person acquiring all or any 

                                       23
<PAGE>
 
     portion of such business, assets or Subsidiary for the purpose of financing
     such acquisition; and

          (l) Guarantees by the Company or guarantees by a Guarantor of
     Indebtedness that was permitted to be incurred under this Indenture.

          For purposes of determining compliance with Section 10.8 described in
the preceding paragraph, (A) in the event that an item of Indebtedness meets the
criteria of more than one of the types of Indebtedness described in the clauses
of the preceding paragraph, the Company, in its sole discretion, shall classify
such item of Indebtedness and only be required to include the amount and type of
such Indebtedness in one such clause, and (B) the amount of Indebtedness issued
at a price that is less than the principal amount thereof shall be equal to the
amount of the liability in respect thereof determined in conformity with GAAP.

          "Permitted Investments" means any of the following:  (i) Investments
in the Company or in a Restricted Subsidiary; (ii) Investments in another
Person, if as a result of such Investment (A) such other Person becomes a
Restricted Subsidiary or (B) such other Person is merged or consolidated with or
into, or transfers or conveys all or substantially all of its assets to the
Company or a Restricted Subsidiary; (iii) Investments representing Capital Stock
or obligations issued to, the Company or any of its Restricted Subsidiaries in
settlement of claims against any other Person by reason of a composition or
readjustment of debt or a reorganization of any debtor of the Company or such
Restricted Subsidiary; (iv) Investments in Interest Rate Protection Agreements
on commercially reasonable terms entered into by the Company or any of its
Restricted Subsidiaries in the ordinary course of business in connection with
the operations of the business of the Company or its Restricted Subsidiaries to
hedge against fluctuations in interest rates on its outstanding Indebtedness;
(v) Investments in the Securities; (vi) Investments in Cash Equivalents; (vii)
Investments acquired by the Company or any Restricted Subsidiary in connection
with an Asset Sale permitted under Section 10.14 to the extent such Investments
are non-cash proceeds as permitted under Section 10.14; (viii) advances to
employees or officers of the Company or any Restricted Subsidiary in the
ordinary course of business; (ix) any Investment to the extent that the
consideration therefor is Capital Stock (other than Redeemable Capital Stock) of
the Company; (x) any loans, payments or other advances made pursuant to any
employee benefit plans (including plans for the benefit of directors) or
employment agreements or other compensation arrangements, in each case as
approved by the Board of Directors of the Company in its good faith judgment,
not to exceed $1,000,000 at any one time outstanding; and 

                                       24
<PAGE>
 
(xi) other Investments not to exceed $25,000,000 at any time outstanding.

          "Permitted Liens" means the following types of Liens:


          (a) any Lien existing as of the Issue Date;

          (b) Liens securing Indebtedness under the New Credit Agreement;

          (c) any Lien securing Acquired Indebtedness created prior to (and not
     created in connection with, or in contemplation of) the incurrence of such
     Indebtedness by the Company or any Restricted Subsidiary, if such Lien does
     not attach to any property or assets of the Company or any Restricted
     Subsidiary other than the property or assets subject to the Lien prior to
     such incurrence;

          (d) Liens in favor of the Company or a Restricted Subsidiary;

          (e) Liens on and pledges of the Capital Stock of any Unrestricted
     Subsidiary securing any Indebtedness of such Unrestricted Subsidiary;

          (f) Liens for taxes, assessments or governmental charges or claims
     either (i) not delinquent or (ii) contested in good faith by appropriate
     proceedings and as to which the Company or its Restricted Subsidiaries
     shall have set aside on its books such reserves as may be required pursuant
     to GAAP;

          (g) statutory Liens of landlords and Liens of carriers, warehousemen,
     mechanics, suppliers, materialmen, repairmen and other Liens imposed by law
     incurred in the ordinary course of business for sums not yet delinquent or
     being contested in good faith, if such reserve or other appropriate
     provision, if any, as shall be required by GAAP shall have been made in
     respect thereof;

          (h) Liens incurred or deposits made in the ordinary course of business
     in connection with workers' compensation, unemployment insurance and other
     types of social security, or to secure the performance of tenders,
     statutory obligations, surety and appeal bonds, bids, leases, government
     contracts, contracts for utilities, performance and return-of-money bonds
     and other similar obligations (exclusive of obligations for the payment of
     borrowed money);

                                       25
<PAGE>
 
          (i) judgment Liens not giving rise to an Event of Default so long as
     such Lien is adequately bonded and any appropriate legal proceedings which
     may have been duly initiated for the review of such judgment shall not have
     been finally terminated or the period within which such proceedings may be
     initiated shall not have expired;

          (j) easements, rights-of-way, zoning restrictions and other similar
     charges or encumbrances in respect of real property not interfering in any
     material respect with the ordinary conduct of the business of the Company
     or any of its Restricted Subsidiaries;

          (k) any interest or title of a lessor under any Capitalized Lease
     Obligation or operating lease;

          (l) purchase money Liens to finance property or assets of the Company
     or any Restricted Subsidiary of the Company acquired in the ordinary course
     of business, provided, however, that (i) the related purchase money
     Indebtedness shall not be secured by any property or assets of the Company
     or any Restricted Subsidiary other than the property and assets so acquired
     and (ii) the Lien securing such Indebtedness shall be created within 90
     days of such acquisition;

          (m) Liens securing reimbursement obligations with respect to
     commercial letters of credit which encumber documents and other property
     relating to such letters of credit and products and proceeds thereof;

          (n) Liens securing refinancing Indebtedness permitted under clause (j)
     of the definition of "Permitted Indebtedness"; provided such Liens are not
     secured by any property or assets of the Company or any Restricted
     Subsidiary other than the property or assets securing such refinanced
     Indebtedness;

          (o) Liens incurred in the ordinary course of business by the Company
     or any Restricted Subsidiary with respect to obligations that do not exceed
     $5,000,000 at any time outstanding;

          (p) Liens encumbering deposits made to secure obligations arising from
     statutory, regulatory, contractual, or warranty requirements of the Company
     or any of its Restricted Subsidiaries, including rights of offset and set-
     off;

          (q) Liens securing Interest Rate Protection Obligations which Interest
     Rate Protection Obligations relate to 

                                       26
<PAGE>
 
     Indebtedness that is secured by Liens otherwise permitted under this
     Indenture; and

          (r) Liens on property or assets of a Foreign Restricted Subsidiary
     securing Indebtedness of Foreign Restricted Subsidiaries.

          "Person" means any individual, corporation, partnership (general or
limited), limited liability company, joint venture, association, joint stock
company, trust, unincorporated organization or government or any agency or
political subdivision thereof.

          "Preferred Stock," as applied to any Person, means Capital Stock of
any class or series (however designated) which is preferred as to the payment of
dividends or distributions, or as to the distribution of assets upon any
voluntary or involuntary liquidation or dissolution of such Person, over shares
of Capital Stock of any other class or series of such Person.

          "Private Placement Legend" shall mean the legend initially set forth
on the Securities in the form set forth on Exhibit A-1.

          "Purchase Amount" means, with respect to an Offer to Purchase, the
maximum aggregate amount payable by the Company for Securities under the terms
of such Offer to Purchase, if such Offer to Purchase were accepted in respect of
all Securities.

          "Purchase Date" shall have the meaning set forth in the definition of
"Offer to Purchase."

          "Qualified Equity Interest" in a Person means any interest in Capital
Stock of such Person, other than Redeemable Capital Stock.

          "Qualified Institutional Buyer" or "QIB" has the meaning specified in
Rule 144A under the Securities Act.

          "Record Expiration Date" has the meaning specified in Section 1.4.

          "Redeemable Capital Stock" means any class or series of Capital Stock
that, either by its terms, by the terms of any security into which it is
convertible or exchangeable or by contract or otherwise, is or upon the
happening of an event or passage of time would be required to be redeemed prior
to the Maturity Date or is redeemable at the option of the holder thereof at any
time prior to the Maturity Date, or is convertible 

                                       27
<PAGE>
 
into or exchangeable for debt securities at any time prior to the Maturity Date;
provided that Capital Stock will not constitute Redeemable Capital Stock solely
because the holders thereof have the right to require the Company to repurchase
or redeem such Capital Stock upon the occurrence of a Change of Control or an
Asset Sale.

          "Redemption Date," when used with respect to any Security to be
redeemed, means the date fixed for such redemption by or pursuant to this
Indenture.

          "Redemption Price," when used with respect to any Security to be
redeemed, means the price at which it is to be redeemed pursuant to this
Indenture.

          "Registrable Securities" has the meaning set forth in the Registration
Rights Agreement.

          "Registration Rights Agreement" means the Notes Registration Rights
Agreement dated as of January 22, 1999 by and among the Company, the Guarantors
and the Initial Purchasers, as the same may be amended, supplemented or
otherwise modified from time to time in accordance with the terms thereof.

          "Regular Record Date" for the interest payable on any Interest Payment
Date means the January 1 or July 1 (whether or not a Business Day), as the case
may be, next preceding such Interest Payment Date.

          "Regulation S" means Regulation S under the Securities Act.

          "Regulation S Global Security" means a permanent global Security in
registered form representing the aggregate principal amount of Securities sold
in reliance on Regulation S under the Securities Act.

          "Replacement Assets" has the meaning specified in Section 10.14.

          "Representative" means the agent in respect of the New Credit
Agreement.

          "Required Filing Dates" has the meaning specified in Section 10.19.

          "Responsible Officer," when used with respect to the Trustee, means
any officer within the Corporate Trust Office, including, any vice president,
any assistant vice president, any assistant secretary, any assistant treasurer,
or any other officer of the Trustee customarily performing functions similar 

                                       28
<PAGE>
 
to those performed by any of the above designated officers and also means, with
respect to a particular corporate trust matter, any other officer to whom such
matter is referred because of his knowledge of and familiarity with the
particular subject.

          "Restricted Payments" has the meaning specified in Section 10.9.

          "Restricted Security" means a Security that constitutes a "restricted
security" within the meaning of Rule 144(a)(3) under the Securities Act;
provided, however, that the Trustee shall be entitled to request and
conclusively rely on an opinion of counsel with respect to whether any Security
constitutes a Restricted Security.

          "Restricted Subsidiary" means any Subsidiary of the Company that is
not an Unrestricted Subsidiary.

          "Revocation" has the meaning set forth in Section 10.18.

          "Rule 144A" means Rule 144A under the Securities Act.

          "S&P" means Standard & Poor's Ratings Group, and its successors.

          "Securities" means securities designated in the first paragraph of the
RECITALS OF THE COMPANY.

          "Securities Act" means the Securities Act of 1933 and any statute
successor thereto, in each case as amended from time to time.

          "Security Register" and "Security Registrar" have the respective
meanings specified in Section 3.5.

          "Senior Indebtedness" means the principal of, premium, if any, and
interest on any Indebtedness of the Company, whether outstanding on the Issue
Date or thereafter created, incurred or assumed, unless, in the case of any
particular Indebtedness, the instrument creating or evidencing the same or
pursuant to which the same is outstanding expressly provides that such
Indebtedness shall not be senior in right of payment to the Securities.  Without
limiting the generality of the foregoing, (x) "Senior Indebtedness" shall
include the principal of, premium, if any, and interest on all obligations of
every nature of the Company from time to time owed to the lenders under the New
Credit Agreement, including, without limitation, principal of and interest on,
and all fees, indemnities and expenses payable under the New Credit Agreement
and (y) in 

                                       29
<PAGE>
 
the case of Designated Senior Indebtedness, "Senior Indebtedness" shall include
interest accruing thereon subsequent to the occurrence of any Event of Default
specified in clause (7) or (8) under Section 5.1, whether or not the claim for
such interest is allowed under any applicable Bankruptcy Code. Notwithstanding
the foregoing, "Senior Indebtedness" shall not include (a) Indebtedness
evidenced by the Securities, (b) Indebtedness that is expressly subordinate or
junior in right of payment to any Indebtedness of the Company, (c) Indebtedness
which, when incurred and without respect to any election under Section 1111(b)
of Title 11, United States Code, is without recourse to the Company, (d)
Indebtedness which is represented by Redeemable Capital Stock, (e) Indebtedness
for goods, materials or services purchased in the ordinary course of business or
Indebtedness consisting of trade payables or other current liabilities (other
than any current liabilities owing under the New Credit Agreement, or the
current portion of any long-term Indebtedness which would constitute Senior
Indebtedness but for the operation of this clause (e)), (f) Indebtedness of or
amounts owed by the Company for compensation to employees or for services
rendered to the Company, (g) any liability for federal, state, local or other
taxes owed or owing by the Company, (h) Indebtedness of the Company to a
Subsidiary of the Company or any other Affiliate of the Company or any of such
Affiliate's Subsidiaries, (i) that portion of any Indebtedness, which is
incurred by the Company in violation of this Indenture (j) Indebtedness of the
Company that by operation of law is subordinate to any general unsecured
obligations of the Company and (k) amounts owing under leases.

          "Significant Subsidiary" of any Person means a Restricted Subsidiary
of such Person which would be a significant subsidiary of such Person as of such
date as determined in accordance with the definition in Rule 1-02(w) of Article
I of Regulation S-X promulgated by the Commission and as in effect on the date
of this Indenture.

          "Special Record Date" for the payment of any Defaulted Interest means
a date fixed by the Trustee pursuant to Section 3.7.

          "Stated Maturity" means, when used with respect to any Security or any
installment of interest thereon, the date specified in such Security as the
fixed date on which the principal of such Security or such installment of
interest is due and payable, and when used with respect to any other
Indebtedness, means the date specified in the instrument governing such
Indebtedness as the fixed date on which the principal of such Indebtedness, or
any installment of interest thereon, is due and payable (including as a result
of the exercise of any put option contained in such instrument).

                                       30
<PAGE>
 
          "Subordinated Indebtedness" means, with respect to the Company,
Indebtedness of the Company which is expressly subordinated in right of payment
to the Securities.

          "Subsidiary" means, with respect to any Person, (i) a corporation a
majority of whose Voting Stock is at the time, directly or indirectly, owned by
such Person, by one or more Subsidiaries of such Person or by such Person and
one or more Subsidiaries thereof and (ii) any other Person (other than a
corporation), including, without limitation, a partnership, limited liability
company, business trust or joint venture, in which such Person, one or more
Subsidiaries thereof or such Person and one or more Subsidiaries thereof,
directly or indirectly, at the date of determination thereof, has at least
majority ownership interest entitled to vote in the election of directors,
managers or trustees thereof (or other Person performing similar functions).
For purposes of this definition, any directors' qualifying shares or investments
by foreign nationals mandated by applicable law shall be disregarded in
determining the ownership of a Subsidiary.

          "Trustee" means the Person named as the "Trustee" in the first
paragraph of this instrument until a successor Trustee shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Trustee" shall mean such successor Trustee.

          "Trust Indenture Act" means the Trust Indenture Act of 1939 as in
force at the date as of which this instrument was executed; provided, however,
that in the event the Trust Indenture Act of 1939 is amended after such date,
"Trust Indenture Act" means, to the extent required by any such amendment, the
Trust Indenture Act of 1939 as so amended.

          "Unrestricted Securities" means one or more Securities in the form set
forth in Exhibit A-2, including, without limitation, the Exchange Securities,
that do not and are not required to bear the Private Placement Legend.

          "Unrestricted Subsidiary" means each Subsidiary of the Company
designated as such pursuant to and in compliance with Section 10.18.

          "U.S. Government Obligation" has the meaning specified in Section
12.4.

          "Vice President," when used with respect to the Company or the
Trustee, means any vice president, whether or not designated by a number or a
word or words added before or after the title "vice president."

                                       31
<PAGE>
 
          "Voting Stock" means any class or classes of Capital Stock pursuant to
which the holders thereof have the general voting power under ordinary
circumstances to elect at least a majority of the board of directors, managers
or trustees of any Person (irrespective of whether or not, at the time, stock of
any other class or classes shall have, or might have, voting power by reason of
the happening of any contingency).

          "Wholly-Owned Restricted Subsidiary" means any Restricted Subsidiary
of the Company of which 100% of the outstanding Capital Stock is owned by the
Company or another Wholly-Owned Restricted Subsidiary of the Company or both.
For purposes of this definition, any directors' qualifying shares or investments
by foreign nationals mandated by applicable law shall be disregarded in
determining the ownership of a Subsidiary.

SECTION 1.2.  Compliance Certificates and Opinions.

          Upon any application or request by the Company or a Guarantor to the
Trustee to take any action under any provision of this Indenture, the Company or
the Guarantor shall furnish to the Trustee such certificates and opinions as may
be required under the Trust Indenture Act.  Each such certificate or opinion
shall be given in the form of an Officer's Certificate, if to be given by an
officer of the Company or a Guarantor, or an opinion of Counsel, if to be given
by counsel, and shall comply with the requirements of the Trust Indenture Act
and any other requirement set forth in this Indenture.

          Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture shall include

             (i) a statement that each individual signing such certificate or
     opinion has read such covenant or condition and the definitions herein
     relating thereto;

             (ii) a brief statement as to the nature and scope of the
     examination or investigation upon which the statements or opinions
     contained in such certificate or opinion are based;

             (iii)  a statement that, in the opinion of each such individual, he
     has made such examination or investigation as is necessary to enable him to
     express an informed opinion as to whether or not such covenant or condition
     has been complied with; and

                                       32
<PAGE>
 
             (iv) a statement as to whether, in the opinion of each such
     individual, such condition or covenant has been complied with.

SECTION 1.3.  Form of Documents Delivered to Trustee.

          In any case where several matters are required to be certified by, or
covered by an opinion of, any specified Person, it is not necessary that all
such matters be certified by, or covered by the opinion of, only one such
Person, or that they be so certified or covered by only one document, but one
such Person may certify or give an opinion with respect to some matters and one
or more other such Persons as to other matters, and any such Person may certify
or give an opinion as to such matters in one or several documents.

          Any certificate or opinion of an officer of the Company or a Guarantor
may be based, insofar as it relates to legal matters, upon a certificate or
opinion of, or representations by, counsel, unless such officer knows, or in the
exercise of reasonable care should know, that the certificate or opinion or
representations with respect to the matters upon which his certificate or
opinion is based are erroneous.  Any such certificate or opinion of counsel may
be based, insofar as it relates to factual matters, upon a certificate or
opinion of, or representations by, an officer or officers of the Company or a
Guarantor stating that the information with respect to such factual matters is
in the possession of the Company or such Guarantor, unless such counsel knows,
or in the exercise of reasonable care should know, that the certificate or
opinion or representations with respect to such matters are erroneous.

          Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this Indenture, they may, but need not, be consolidated and
form one instrument.

SECTION 1.4.  Acts of Holders; Record Dates.

          Any request, demand, authorization, direction, notice, consent, waiver
or other action provided or permitted by this Indenture to be given or taken by
Holders may be embodied in and evidenced by one or more instruments of
substantially similar tenor signed by such Holders in person or by agent duly
appointed in writing; and, except as herein otherwise expressly provided, such
action shall become effective when such instrument or instruments are delivered
to the Trustee and, where it is hereby expressly required, to the Company or a
Guarantor, as applicable.  Such instrument or instruments (and the action

                                       33
<PAGE>
 
embodied therein and evidenced thereby) are herein sometimes referred to as the
"Act" of the Holders signing such instrument or instruments.  Proof of execution
of any such instrument or of a writing appointing any such agent shall be
sufficient for any purpose of this Indenture and (subject to Section 6.1)
conclusive in favor of the Trustee and the Company, if made in the manner
provided in this Section.

          The fact and date of the execution by any Person of any such
instrument or writing may be proved by the affidavit of a witness of such
execution or by a certificate of a notary public or other officer authorized by
law to take acknowledgments of deeds, certifying that the individual signing
such instrument or writing acknowledged to him the execution thereof.  Where
such execution is by a signer acting in a capacity other than his individual
capacity, such certificate or affidavit shall also constitute sufficient proof
of his authority.  The fact and date of the execution of any such instrument or
writing, or the authority of the Person executing the same, may also be proved
in any other manner which the Trustee deems sufficient.

          The ownership of Securities shall be proved by the Security Register.

          Any request, demand, authorization, direction, notice, consent, waiver
or other Act of the Holder of any Security shall bind every future Holder of the
same Security and the Holder of every Security issued upon the registration of
transfer thereof or in exchange therefor or in lieu thereof in respect of
anything done, omitted or suffered to be done by the Trustee, the Company or a
Guarantor in reliance thereon, whether or not notation of such action is made
upon such Security.

          The Company may set any day as a record date for the purpose of
determining the Holders of Outstanding Securities entitled to give or take any
request, demand, authorization, direction, notice, consent, waiver or other
action provided or permitted by this Indenture to be given or taken by Holders
of Securities; provided that the Company may not set a record date for, and the
provisions of this paragraph shall not apply with respect to, the giving or
making of any notice, declaration, request or direction referred to in the next
paragraph.  If any record date is set pursuant to this paragraph, the Holders of
Outstanding Securities on such record date, and no other Holders, shall be
entitled to take the relevant action, whether or not such Holders remain Holders
after such record date; provided that no such action shall be effective
hereunder unless taken on or prior to the applicable Record Expiration Date by
Holders of the requisite principal amount of Outstanding Securities 

                                       34
<PAGE>
 
on such record date. Nothing in this paragraph shall prevent the Company from
setting a new record date for any action for which a record date has previously
been set pursuant to this paragraph (whereupon the record date previously set
shall automatically and with no action by any Person be cancelled and of no
effect), nor shall anything in this paragraph be construed to render ineffective
any action taken pursuant to or in accordance with any other provision of this
Indenture by Holders of the requisite principal amount of Outstanding Securities
on the date such action is taken. Promptly after any record date is set pursuant
to this paragraph, the Company, at its own expense, shall cause notice of such
record date, the proposed action by Holders and the applicable Record Expiration
Date to be given to the Trustee in writing and to each Holder of Securities in
the manner set forth in Section 1.6.

          The Trustee may but need not set any day as a record date for the
purpose of determining the Holders of Outstanding Securities entitled to join in
the giving or making of (i) any Notice of Default, (ii) any declaration of
acceleration referred to in Section 5.2, (iii) any request to institute
proceedings referred to in Section 5.7(2) or (v) any direction referred to in
Section 5.12.  If any record date is set pursuant to this paragraph, the Holders
of Outstanding Securities on such record date, and no other Holders, shall be
entitled to join in such notice, declaration, request or direction, whether or
not such Holders remain Holders after such record date; provided that no such
action shall be effective hereunder unless taken on or prior to the applicable
Record Expiration Date by Holders of the requisite principal amount of
Outstanding Securities on such record date.  Nothing in this paragraph shall be
construed to prevent the Trustee from setting a new record date for any action
(whereupon the record date previously set shall automatically and without any
action by any Person be cancelled and of no effect), nor shall anything in this
paragraph be construed to render ineffective any action taken pursuant to or in
accordance with any other provision of this Indenture by Holders of the
requisite principal amount of Outstanding Securities on the date such action is
taken.  Promptly after any record date is set pursuant to this paragraph, the
Trustee, at the Company's expense, shall cause notice of such record date, the
matter(s) to be submitted for potential action by Holders and the applicable
Record Expiration Date to be given to the Company in writing and to each Holder
of Securities in the manner set forth in Section 1.6.

          With respect to any record date set pursuant to this Section, the
party hereto that sets such record date may designate any day as the "Record
Expiration Date" and from time to time may change the Record Expiration Date to
any earlier or later day; provided that no such change shall be effective unless

                                       35
<PAGE>
 
notice of the proposed new Record Expiration Date is given to the other party
hereto in writing, and to each Holder of Securities in the manner set forth in
Section 1.6, on or before the existing Record Expiration Date.  If a Record
Expiration Date is not designated with respect to any record date set pursuant
to this Section, the party hereto that set such record date shall be deemed to
have initially designated the 180th day after such record date as the Record
Expiration Date with respect thereto, subject to its right to change the Record
Expiration Date as provided in this paragraph.  Notwithstanding the foregoing,
no Record Expiration Date shall be later than the 180th day after the applicable
record date.

          Without limiting the foregoing, a Holder entitled hereunder to take
any action hereunder with regard to any particular Security may do so with
regard to all or any part of the principal amount of such Security or by one or
more duly appointed agents each of which may do so pursuant to such appointment
with regard to all or any part of such principal amount.

SECTION 1.5.  Notices to Trustee, the Company or a Guarantor.

          Any request, demand, authorization, direction, notice, consent, waiver
or Act of Holders or other document provided or permitted by this Indenture to
be made upon, given or furnished to, or filed with,

             (i) the Trustee by any Holder or by the Company or a Guarantor
     shall be sufficient for every purpose hereunder if made, given, furnished
     or filed in writing and mailed, first class postage prepaid, to or with the
     Trustee at its Corporate Trust Office, Attention: Corporate Trust
     Administration,

             (ii) the Company or a Guarantor by the Trustee or by any Holder
     shall be sufficient for every purpose hereunder (unless otherwise herein
     expressly provided) if in writing and mailed, first-class postage prepaid,
     to the Company or such Guarantor addressed to it at the address of the
     Company's principal office, for the attention of the [General Counsel],
     specified in the first paragraph of this instrument, or at any other
     address previously furnished in writing to the Trustee by the Company and
     such Guarantor.

SECTION 1.6.  Notice to Holders; Waiver.

          Where this Indenture provides for notice to Holders of any event, such
notice shall be sufficiently given (unless otherwise herein expressly provided)
if in writing and mailed, 

                                       36
<PAGE>
 
first-class postage prepaid, to each Holder affected by such event, at his
address as it appears in the Security Register, not later than the latest date
(if any), and not earlier than the earliest date (if any), prescribed for the
giving of such notice. In any case where notice to Holders is given by mail,
neither the failure to mail or receive such notice, nor any defect in any such
notice, to any particular Holder shall affect the sufficiency or validity of
such notice. Where this Indenture provides for notice in any manner, such notice
may be waived in writing by the Person entitled to receive such notice, either
before or after the event, and such waiver shall be the equivalent of such
notice. Waivers of notice by Holders shall be filed with the Trustee, but such
filing shall not be a condition precedent to the validity of any action taken in
reliance upon such waiver.

          In case by reason of the suspension of regular mail service or by
reason of any other cause it shall be impracticable to give such notice by mail,
then such notification as shall be made with the approval of the Trustee shall
constitute a sufficient notification for every purpose hereunder.

SECTION 1.7.  Conflict with Trust Indenture Act.

          If any provision hereof limits, qualifies or conflicts with a
provision of the Trust Indenture Act that is required under the Trust Indenture
Act to be part of and govern this Indenture, such provision of the Trust
Indenture Act shall control.  If any provision of this Indenture modifies or
excludes any provision of the Trust Indenture Act that may be so modified or
excluded, such provision shall be deemed to be so modified or excluded, as the
case may be.

SECTION 1.8.  Effect of Headings and Table of Contents.

          The Article and Section headings herein and the Table of Contents are
for convenience only and shall not affect the construction hereof.

SECTION 1.9.  Successors and Assigns.

          Without limiting Articles VIII and XIII hereof, all covenants and
agreements in this Indenture by each of the Company or the Guarantors shall bind
their respective successors and assigns, whether so expressed or not.

                                       37
<PAGE>
 
SECTION 1.10.  Separability Clause.

          In case any provision in this Indenture or in the Securities shall be
invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby.

SECTION 1.11.  Benefits of Indenture.

          Nothing in this Indenture or in the Securities, express or implied,
shall give to any Person, other than the parties hereto and their successors
hereunder and the Holders of Securities, any benefit or any legal or equitable
right, remedy or claim under this Indenture.

SECTION 1.12.  Governing Law.

          This Indenture and the Securities shall be governed by and construed
in accordance with the laws of the State of New York, without regard to the
conflicts of laws principles thereof.

SECTION 1.13.  Legal Holidays.

          In any case where any Interest Payment Date, Redemption Date, Purchase
Date or Stated Maturity of any Security shall not be a Business Day, then
(notwithstanding any other provision of this Indenture or of the Securities)
payment of interest or principal (and premium, if any) need not be made on such
date, but may be made on the next succeeding Business Day with the same force
and effect (including with respect to the accrual of interest) as if made on the
Interest Payment Date, Redemption Date or Purchase Date, or at the Stated
Maturity.

                                   ARTICLE II

                                 Security Forms

SECTION 2.1.  Forms Generally.

          The Securities and the Trustee's certificates of authentication shall
be in substantially the forms set forth or referenced in Exhibit A-1 and Exhibit
A-2 annexed hereto, with such appropriate insertions, omissions, substitutions
and other variations as are required or permitted by this Indenture, and may
have such letters, numbers or other marks of identification and such legends or
endorsements placed thereon as may be required to comply with the rules of any
securities exchange or the Depository or as may, consistently herewith, be
determined 

                                       38
<PAGE>
 
by the officers executing such Securities, as evidenced by their execution
thereof.

                                  ARTICLE III

                                 The Securities

SECTION 3.1.  Title and Terms.

          The aggregate principal amount of Securities which may be
authenticated and delivered under this Indenture is limited to $200,000,000
principal amount, of which $130,000,000 will be issued on the Issue Date, except
for Securities authenticated and delivered upon registration or transfer of, or
in exchange for, or in lieu of, other Securities pursuant to Section 3.4, 3.5,
3.6, 9.6 or 11.8 or in connection with an Offer pursuant to Sections 10.13 or
10.14.

          The Securities shall be known and designated as the "9 3/4% Senior
Subordinated Notes due 2009" of the Company.  Their Stated Maturity for payment
of principal shall be January 15, 2009.  Interest on the Securities shall accrue
at the rate of 9 3/4% per annum and shall be payable semi-annually on each
January 15 and July 15, commencing July 15, 1999, to the Holders of record of
Securities at the close of business on the January 1 and July 1, respectively,
immediately preceding such Interest Payment Date.  Interest on the Securities
will accrue from the most recent date to which interest has been paid or, if no
interest has been paid, from the Issue Date of such Securities.  Interest will
be computed on the basis of a 360-day year comprised of twelve 30-day months.

          The principal of (and premium, if any) and interest on the Securities
shall be payable at the office or agency of the Trustee in the Borough of
Manhattan, The City of New York or such other office maintained by the Trustee
for such purpose and at any other office or agency maintained by the Company for
such purpose; provided, however, that, at the option of the Company, payment of
interest may be made by check mailed to the address of the Person entitled
thereto as such address shall appear in the Security Register.

          The Company may be required to make a Change of Control Offer as
provided in Section 10.13, or an Asset Sale Offer as provided in Section 10.14.

          The Securities shall be redeemable as provided in Article XI and the
Securities.

                                       39
<PAGE>
 
          The Securities shall be subject to Defeasance and/or Covenant
Defeasance as provided in Article XII.

SECTION 3.2.  Denominations.

          The Securities shall be issuable only in registered form without
coupons and only in denominations of $1,000 principal amount and any integral
multiple thereof.

SECTION 3.3.  Execution, Authentication, Delivery and Dating.

          The Initial Securities and the Trustee's certificate of authentication
shall be substantially in the form of Exhibit A-1 hereto.  The Exchange
Securities and the Trustee's certificate of authentication shall be
substantially in the form of Exhibit A-2 hereto.

          The terms and provisions contained in the Securities annexed hereto as
Exhibits A-1 and A-2 shall constitute, and are hereby expressly, made, a part of
this Indenture and, to the extent applicable, the Company and the Trustee, by
their execution and delivery of this Indenture, expressly agree to such terms
and provisions and to be bound thereby.

          Securities offered and sold in reliance on Rule 144A and Securities
offered and sold in reliance on Regulation S shall be issued initially in the
form of one or more Global Securities, substantially in the form set forth in
Exhibit A-1, deposited with the Trustee, as custodian for the Depository, duly
executed by the Company and authenticated by the Trustee as hereinafter provided
and shall bear the legend set forth in Exhibit B. The aggregate principal amount
of the Global Securities may from time to time be increased or decreased by
adjustments made on the records of the Trustee, as custodian for the Depository,
as hereinafter provided.

          All Securities shall remain in the form of a Global Security, except
as provided herein.

          The Securities shall be executed on behalf of the Company by its
Chairman of the Board, its Chief Executive officer, its President or one of its
Vice Presidents, or its Chief Financial Officer, attested by its Secretary or
one of its Assistant Secretaries.  The signature of any of these officers on the
Securities may be manual or facsimile.

          Securities bearing the manual or facsimile signatures of individuals
who were at any time the proper officers of the Company shall bind the Company,
notwithstanding that such individuals or any of them have ceased to hold such
offices prior 

                                       40
<PAGE>
 
to the authentication and delivery of such Securities or did not hold such
offices at the date of such Securities.

          At any time and from time to time after the execution and delivery of
this Indenture, the Company may deliver Securities executed by the Company to
the Trustee for authentication, together with a Company Order for the
authentication and delivery of such Securities; and the Trustee in accordance
with such Company order shall authenticate and deliver such Securities as in
this Indenture provided and not otherwise.

          Each Security shall be dated the date of its authentication.

          No Security shall be entitled to any benefit under this Indenture or
be valid or obligatory for any purpose unless there appears on such Security a
certificate of authentication substantially in the form provided for herein
executed by the Trustee by manual signature, and such certificate upon any
Security shall be conclusive evidence, and the only evidence, that such Security
has been duly authenticated and delivered hereunder.

SECTION 3.4.  Temporary Securities.

          Pending the preparation of definitive Securities, the Company may
execute, and upon Company Order the Trustee shall authenticate and deliver,
temporary Securities which are printed, lithographed, typewritten, mimeographed
or otherwise produced, in any authorized denomination, substantially of the
tenor of the definitive Securities in lieu of which they are issued and with
such appropriate insertions, omissions, substitutions and other variations as
the officers executing such Securities may determine, as evidenced by their
execution of such Securities.

          If temporary Securities are issued, the Company will cause definitive
Securities to be prepared without unreasonable delay.  After the preparation of
definitive Securities, the temporary Securities shall be exchangeable for
definitive Securities upon surrender of the temporary Securities at any office
or agency of the Company designated pursuant to Section 10.2, without charge to
the Holder.  Upon surrender for cancellation of any one or more temporary
Securities the Company shall execute and the Trustee shall authenticate and
deliver in exchange therefor a like principal amount of definitive Securities of
authorized denominations and of a like tenor.  Until so exchanged the temporary
Securities shall in all respects be entitled to the same benefits under this
Indenture as definitive Securities.

                                       41
<PAGE>
 
SECTION 3.5.  Registration, Registration of Transfer and Exchange.

          The Company shall cause to be kept at the Corporate Trust Office of
the Trustee a register (the register maintained in such office and in any other
office or agency designated pursuant to Section 10.2 being herein sometimes
collectively referred to as the "Security Register") in which, subject to such
reasonable regulations as the Company may prescribe, the Company shall provide
for the registration of Securities and of transfers of Securities.  The Trustee
is hereby appointed the initial "Security Registrar" for the purpose of
registering Securities and transfers of Securities as herein provided.

          Subject to Sections 3.13 and 3.14 of this Indenture, upon surrender
for registration of transfer of any Security at an office or agency of the
Company designated pursuant to Section 10.2 for such purpose, the Company shall
execute, and the Trustee shall authenticate and deliver, in the name of the
designated transferee or transferees, one more or more new Securities of any
authorized denominations and of a like aggregate principal amount and tenor.

          At the option of the Holder, Securities may be exchanged for other
Securities of any authorized denominations and of a like aggregate principal
amount and tenor, upon surrender of the Securities to be exchanged at such
office or agency.  Whenever any Securities are so surrendered for exchange, the
Company shall execute, and the Trustee shall authenticate and deliver, the
Securities which the Holder making the exchange is entitled to receive.

          All Securities issued upon any registration of transfer or exchange of
Securities shall be the valid obligations of the Company, evidencing the same
debt, and entitled to the same benefits under this Indenture, as the Securities
surrendered upon such registration of transfer or exchange.

          Every Security presented or surrendered for registration of transfer
or for exchange shall (if so required by the Company or the Trustee) be duly
endorsed, or be accompanied by a written instrument of transfer in form
satisfactory to the Company and the Security Registrar duly executed, by the
Holder thereof or his attorney duly authorized in writing.

          No service charge shall be made for any registration of transfer or
exchange of Securities, but the Company may require payment of a sum sufficient
to cover any tax or other governmental charge that may be imposed in connection
with any registration of transfer or exchange of Securities, other than
exchanges pursuant to Section 3.4, 9.6 or 11.8 or in accordance 

                                       42
<PAGE>
 
with any Change of Control Offer pursuant to Section 10.13 or any Asset Sale
Offer pursuant to Section 10.14, and in any such case not involving any
transfer.

          The Company shall not be required (i) to issue, register the transfer
of or exchange any Security during a period beginning at the opening of business
15 days before the day of the mailing of a notice of redemption of Securities
selected for redemption under Section 11.4 and ending at the close of business
on the day of such mailing, (ii) to register the transfer of or exchange any
Security so selected for redemption in whole or in part, except the unredeemed
portion of any Security being redeemed in part or (iii) to register the transfer
of any Securities other than Securities having a principal amount of $1,000 or
integral multiples thereof.

SECTION 3.6.  Mutilated, Destroyed, Lost and Stolen Securities.

          If any mutilated Security is surrendered to the Trustee, the Company
shall execute and the Trustee shall authenticate and deliver in exchange
therefor a new Security of like tenor and principal amount and bearing a number
not contemporaneously outstanding.

          If there shall be delivered to the Company and the Trustee (i)
evidence to their satisfaction of the destruction, loss or theft of any Security
and (ii) such security or indemnity as may be required by them to save each of
them and any agent of each of them harmless, then, in the absence of notice to
the Company or the Trustee that such Security has been acquired by a bona fide
purchaser, the Company shall execute, and upon its request the Trustee shall
authenticate and deliver, in lieu of any such destroyed, lost or stolen
Security, a new Security of like tenor and principal amount and bearing a number
not contemporaneously outstanding.

          In case any such mutilated, destroyed, lost or stolen Security has
become or is about to become due and payable, the Company in its discretion may,
instead of, issuing a new Security, pay such Security.

          Upon the issuance of any new Security under this Section, the Company
may require the payment of a sum sufficient to cover any tax or other
governmental charge that may be imposed in relation thereto and any other
expenses (including the fees and expenses of the Trustee) connected therewith.

          Every new Security issued pursuant to this Section in lieu of any
destroyed, lost or stolen Security shall constitute an original additional
contractual obligation of the Company, 

                                       43
<PAGE>
 
whether or not the destroyed, lost or stolen Security shall be at any time
enforceable by anyone, and shall be entitled to all the benefits of this
Indenture equally and proportionately with any and all other Securities duly
issued hereunder.

          The provisions of this Section are exclusive and shall preclude (to
the extent lawful) all other rights and remedies with respect to the replacement
or payment of mutilated, destroyed, lost or stolen Securities.

SECTION 3.7.  Payment of Interest; Rights Preserved.

          Interest on any Security which is payable, and is punctually paid or
duly provided for, on any Interest Payment Date shall be paid to the Person in
whose name that Security (or one or more predecessor securities) is registered
at the close of business on the Regular Record Date for such interest payment.

          Any interest on any Security which is payable, but is not punctually
paid or duly provided for, on any Interest Payment Date (herein called
"Defaulted Interest") shall forthwith cease to be payable to the Holder on the
relevant Regular Record Date by virtue of having been such Holder, and such
Defaulted Interest may be paid by the Company, at its election in each case, as
provided in clause (1) or (2) below:

          (1) The Company may elect to make payment of any Defaulted Interest
     to the Persons in whose names the Securities (or their respective
     predecessor Securities) are registered at the close of business on a
     Special Record Date for the payment of such Defaulted Interest, which shall
     be fixed in the following manner.  The Company shall notify the Trustee in
     writing of the amount of Defaulted Interest proposed to be paid on each
     Security and the date of the proposed payment, and at the same time the
     Company shall deposit with the Trustee an amount of money equal to the
     aggregate amount proposed to be paid in respect of such Defaulted Interest
     or shall make arrangements satisfactory to the Trustee for such deposit
     prior to the date of the proposed payment, such money when deposited to be
     held in trust for the benefit of the Persons entitled to such Defaulted
     Interest as in this clause provided.  Thereupon the Trustee shall fix a
     Special Record Date for the payment of such Defaulted Interest which shall
     be not more than 15 days and not less than 10 days prior to the date of the
     proposed payment and not less than 15 days after the receipt by the Trustee
     of the notice of the proposed payment.  The Trustee shall promptly notify
     the Company of such Special Record Date and, in the name and at the expense

                                       44
<PAGE>
 
     of the Company, shall cause notice of the proposed payment of such
     Defaulted Interest and the Special Record Date therefor to be given to each
     Holder in the manner specified in Section 1.6, not less than 10 days prior
     to such Special Record Date.  Notice of the proposed payment of such
     Defaulted Interest and the Special Record Date therefor having been so
     mailed, such Defaulted Interest shall be paid to the Persons in whose names
     the Securities (or their respective predecessor Securities) are registered
     at the close of business on such Special Record Date and shall no longer be
     payable pursuant to the following clause (2).

          (2) The Company may make payment of any Defaulted Interest in any
     other lawful manner not inconsistent with the requirements of any
     securities exchange on which the Securities may be listed, and upon such
     notice as may be required by such exchange, if, after notice given by the
     Company to the Trustee of the proposed payment pursuant to this Clause,
     such manner of payment shall be deemed practicable by the Trustee.

          Subject to the foregoing provisions of this Section, each Security
delivered under this Indenture upon registration of transfer of or in exchange
for or in lieu of any other Security shall carry the rights to interest accrued
and unpaid, and to accrue, which were carried by such other Security.

SECTION 3.8.  Persons Deemed Owners.

          Prior to due presentment of a Security for registration of transfer,
the Company, the Trustee and any agent of the Company or the Trustee may treat
the Person in whose name such Security is registered as the owner of such
Security for the purpose of receiving payment of principal of (and premium, if
any) and (subject to Section 3.7) interest on such Security and for all other
purposes whatsoever, whether or not such Security be overdue, and neither the
Company, the Trustee nor any agent of the Company or the Trustee shall be
affected by notice to the contrary.

SECTION 3.9.  Cancellation.

          All Securities surrendered for payment, redemption, registration of
transfer or exchange or tendered and accepted pursuant to any Change of Control
Offer pursuant to Section 10.13 or any Asset Sale Offer pursuant to Section
10.14 shall, if surrendered to any Person other than the Trustee, be delivered
to the Trustee and shall be promptly cancelled by it.  The Company may at any
time deliver to the Trustee for cancellation any Securities previously
authenticated and delivered hereunder 

                                       45
<PAGE>
 
which the Company may have acquired in any manner whatsoever, and all Securities
so delivered shall be promptly cancelled by the Trustee. No Securities shall be
authenticated in lieu of or in exchange for any Securities cancelled as provided
in this Section, except as expressly permitted by this Indenture. All cancelled
Securities held by the Trustee shall be disposed of in the customary manner by
the Trustee unless otherwise directed by a Company Order.

SECTION 3.10.  Computation of Interest.

          Interest on the Securities shall be computed on the basis of a 360-day
year comprised of twelve 30-day months.

SECTION 3.11.  CUSIP and CINS Numbers.

          The Company in issuing the Securities may use "CUSIP" and "CINS"
numbers (if then generally in use), and, if so, the Trustee shall use the CUSIP
or CINS numbers in notices of redemption or repurchase as a convenience to
Holders; provided that any such notice may state that no representation is made
as to the correctness of such numbers either as printed on the Securities or as
contained in any notice of a redemption or repurchase and that reliance may be
placed only on the other identification numbers printed on the Securities, and
any such redemption or repurchase shall not be affected by any defect in or
omission of such numbers.

SECTION 3.12.  Deposits of Monies.

          Except to the extent payment of interest is made by the Company's
check pursuant to Section 3.1, prior to 11:00 a.m. New York City time on each
Interest Payment Date, Redemption Date, Stated Maturity, and Purchase Date, the
Company shall deposit with the Paying Agent in immediately available funds money
sufficient to make cash payments, if any, due on such Interest Payment Date,
Redemption Date, Stated Maturity and Purchase Date, as the case may be, in a
timely manner which permits the Paying Agent to remit payment to the Holders on
such Interest Payment Date, Redemption Date, Stated Maturity, and Purchase Date,
as the case may be.

SECTION 3.13.  Book-Entry Provisions for Global Securities.

          (a) The Global Securities initially shall (i) be registered in the
     name of the Depository or the nominee of such Depository, (ii) be delivered
     to the Trustee as custodian for such Depository and (iii) bear legends as
     set forth in Exhibit B hereto.

                                       46
<PAGE>
 
          Members of, or participants in, the Depository ("Agent Members") shall
     have no rights under this Indenture with respect to any Global Security
     held on their behalf by the Depository, or the Trustee as its custodian, or
     under any Global Security, and the Depository may be treated by the
     Company, the Trustee and any agent of the Company or the Trustee as the
     absolute owner of the Global Securities for all purposes whatsoever.
     Notwithstanding the foregoing, nothing herein shall prevent the Company,
     the Trustee or any agent of the Company or the Trustee from giving effect
     to any written certification, proxy or other authorization furnished by the
     Depository or impair, as between the Depository and its Agent Members, the
     operation of customary practices governing the exercise of the rights of a
     Holder of any Security.

          (b) Transfer of Global Securities shall be limited to transfers in
     whole, but not in part, to the Depository, its successors or their
     respective nominees.  Interests of beneficial owners in the Global
     Securities may not be transferred or exchanged for physical securities,
     except that physical securities shall be transferred to all beneficial
     owners in exchange for their beneficial interests in Global Securities if
     (i) the Depository notifies the Company that it is unwilling or unable to
     continue as Depository for any Global Security, or that it will cease to be
     a "Clearing Agency" under the Exchange Act, and in either case a successor
     Depository is not appointed by the Company within 90 days of such notice or
     (ii) an Event of Default has occurred and is continuing and the Security
     Registrar has received a written request from the Depository to issue
     physical securities.

          (c) The Holder of any Global Security may grant proxies and otherwise
     authorize any Person, including Agent Members and Persons that may hold
     interests through Agent Members, to take any action which a Holder is
     entitled to take under this Indenture or the Securities.

SECTION 3.14.  Special Transfer Provisions.

          (a) Transfers to Non-U.S. Persons.  The following additional
     provisions shall apply with respect to the registration of any proposed
     transfer of and the transfer of the beneficial interest in an Initial
     Security to any Non-U.S. Person:

              (i)   the Security Registrar shall register the transfer of any
     Initial Security, whether or not such Security bears the Private Placement
     Legend, and a transfer of the beneficial interest in an Initial Security
     may be made if 

                                       47
<PAGE>
 
     (x) the requested transfer is after the second anniversary of the Issue
     Date; provided, however, that neither the Company nor any Affiliate of the
     Company has held any beneficial interest in such Security, or portion
     thereof, at any time on or prior to the second anniversary of the Issue
     Date and such transfer can otherwise be lawfully made under the Securities
     Act without registering such Initial Security thereunder,(y) in the case of
     the registration of a transfer by the Security Registrar, the proposed
     transferor has delivered to the Security Registrar a certificate
     substantially in the form of Exhibit C hereto or (i) in the case of the
     transfer of the beneficial interest in an Initial Security, (other than a
     transfer by an Agent Member, to which clause (ii) below shall apply), the
     transfer is made in accordance with Regulation S under the Securities Act
     and in accordance with clause (iii) below to the extent applicable;

              (ii)  if the proposed transferor is an Agent Member seeking to
     transfer an interest in a 144A Global Security, upon receipt by the
     Security Registrar of (x) written instructions given in accordance with the
     Depository's and the Security Registrar's procedures and (y) the
     appropriate certificate, if any, required by clause (y) of paragraph (i)
     above, together with any required legal opinions and certifications, the
     Security Registrar shall register the transfer and reflect on its books and
     records the date and (A) a decrease in the principal amount of the 144A
     Global Security from which such interests are to be transferred in an
     amount equal to the principal amount of the Securities to be transferred
     and (B) an increase in the principal amount of the Regulation S Global
     Security in an amount equal to the principal amount of the Global Security
     to be transferred; and

              (iii) subject to Section 3.14(b), until the 41st day after the
     Issue Date (the "Distribution Compliance Period"), an owner of a beneficial
     interest in the Regulation S Global Security may not transfer such interest
     to a transferee that is a U.S. Person or for the account or benefit of a
     U.S. Person within the meaning of Rule 902(o) of the Securities Act.
     Subject to Section 3.14(b), during the Distribution Compliance Period, all
     beneficial interests in the Regulation S Global Security shall be
     transferred only through Cedel or Euroclear, either directly if the
     transferor and transferee are participants in such systems, or indirectly
     through organizations that are participants therein.

          (b) Transfers to QIBs.  The following provisions shall apply with
     respect to the registration of any proposed 

                                       48
<PAGE>
 
     transfer of an Initial Security and the transfer of the beneficial interest
     in an Initial Security to a QIB (excluding Non-U.S. Persons):

              (i)   the Security Registrar shall register the transfer of any
     Initial Security, whether or not such Security bears the Private Placement
     Legend, and the transfer of the beneficial interest in an Initial Security
     may be made if (x) the requested transfer is after the second anniversary
     of the Issue Date; provided, however, that neither the Company nor any
     Affiliate of the Company has held any beneficial interest in such Security,
     or portion thereof, at any time on or prior to the second anniversary of
     the Issue Date and such transfer can otherwise be lawfully made under the
     Securities Act without registering such Initial Security thereunder, (y) in
     the case of the registration of a transfer by the Security Registrar, such
     transfer is being made by a proposed transferor who has checked the box
     provided for on the form of Security stating, or has otherwise advised the
     Company and the Security Registrar in writing, that the sale has been made
     in compliance with the provisions of Rule 144A to a transferee who has
     signed the certification provided for on the form of Security stating, or
     has otherwise advised the Company and the Security Registrar in writing,
     that it is purchasing the Security for its own account or an account with
     respect to which it exercises sole investment discretion and that it and
     any such account is a QIB within the meaning of Rule 144A, and is aware
     that the sale to it is being made in reliance on Rule 144A and acknowledges
     that it has received such information regarding the Company as it has
     requested pursuant to Rule 144A or has determined not to request such
     information and that it is aware that the transferor is relying upon its
     foregoing representations in order to claim the exemption from registration
     provided by Rule 144A or (z) in the case of the transfer of the beneficial
     interest in an Initial Security, (other than a transfer by an Agent Member,
     to which clause (ii) below shall apply), the transfer is made in accordance
     with Rule 144A under the Securities Act; and

             (ii)   if the proposed transferor is an Agent Member seeking to
     transfer an interest in a Regulation S Global Security, upon receipt by the
     Security Registrar of written instructions given in accordance with the
     Depository's and the Security Registrar's procedures, the Security
     Registrar shall register the transfer and reflect on its books and records
     the date and (A) a decrease in the principal amount of the Regulation S
     Global Security from which interests are to be transferred in an amount
     equal to the principal amount of the Securities to be transferred 

                                       49
<PAGE>
 
     and (B) an increase in the principal amount of the 144A Global Security in
     an amount equal to the principal amount of the Global Security to be
     transferred.

          (c) Private Legend.  Upon the registration of transfer, exchange or
     replacement of Securities not bearing the Private Placement Legend, the
     Security Registrar shall deliver Securities that do not bear the Private
     Placement Legend.  Upon the registration of transfer, exchange or
     replacement of Securities bearing the Private Placement Legend, the
     Security Registrar shall deliver only Securities that bear the Private
     Placement Legend unless (i) the circumstances contemplated by paragraph
     (a)(i)(x) or (b)(i)(x) of this Section 3.14 exists, (ii) there is delivered
     to the Security Registrar an opinion of counsel reasonably satisfactory to
     the Company and the Trustee to the effect that neither such legend nor the
     related restrictions on transfer are required in order to maintain
     compliance with the provisions of the Securities Act or (iii) such Security
     has been sold pursuant to an effective registration statement under the
     Securities Act.

          (d) Other Transfers.  If a Holder proposes to transfer a Security
     constituting a Restricted Security pursuant to any exemption from the
     registration requirements of the Securities Act other than as provided for
     by Section 3.14(a), (b) and (c), the Security Registrar shall only register
     such transfer or exchange if such transferor delivers an opinion of counsel
     satisfactory to the Company and the Security Registrar that such transfer
     is in compliance with the Securities Act and the terms of this Indenture.

          (e) General. By its acceptance of any Security bearing the Private
     Placement Legend and by its ownership of a beneficial interest therein,
     each Holder of such a Security and each owner of a beneficial interest
     therein acknowledges the restrictions on transfer of such Security and of
     beneficial interests therein set forth in this Indenture and in the Private
     Placement Legend and agrees that it will transfer such Security and
     beneficial interests therein only as provided in this Indenture.

          The Security Registrar shall retain copies of all letters, notices and
other written communications received pursuant to Section 3.13 or this Section
3.14. The Company shall have the right to inspect and make copies of all such
letters, notices or other written communications at any reasonable time upon the
giving of reasonable prior written notice to the Security Registrar.

                                       50
<PAGE>
 
                                  ARTICLE IV

                          Satisfaction and Discharge

SECTION 4.1.  Satisfaction and Discharge of Indenture.

          This Indenture shall cease to be of further effect (except as to any
surviving rights of registration of transfer or exchange of Securities herein
expressly provided for), and the Trustee, on demand of and at the expense of the
Company, shall execute proper instruments acknowledging satisfaction and
discharge of this Indenture, when

          (1)  either

               (A) all Securities theretofore authenticated and delivered (other
          than (i) Securities which have been destroyed, lost or stolen and
          which have been replaced or repaid as provided in Section 3.6 and (ii)
          Securities for whose payment money has theretofore been deposited in
          trust or segregated and held in trust by the Company and thereafter
          repaid to the Company or discharged from such trust, as provided in
          Section 10.3) have been delivered to the Trustee for cancellation; or

               (B) all such Securities not theretofore delivered to the Trustee
          for cancellation (other than Securities which have been destroyed,
          lost or stolen and which have been replaced or repaid as provided in
          Section 3.6),

          (i)   have become due and payable, or

          (ii)  will become due and payable at their Stated Maturity within
     one year, or

          (iii) are to be called for redemption within one year under
     arrangements satisfactory to the Trustee for the giving of notice of
     redemption by the Trustee in the name, and at the expense, of the Company,
     and the Company, in the case of (i), (ii) or (iii) above, has irrevocably
     deposited or caused to be deposited with the Trustee as trust funds in
     trust for the purpose an amount sufficient to pay and discharge the entire
     Indebtedness on such Securities not theretofore delivered to the Trustee
     for cancellation, for principal (and premium, if any) and interest on the
     Securities to the date of such
                                       51
<PAGE>
 
     deposit (in the case of Securities which have become due and payable) or to
     the Stated Maturity or Redemption Date, as the case may be, together with
     irrevocable instructions from the Company directing the Trustee to apply
     such funds to the payment thereof at maturity or redemption, as the case
     may be;

          (2)  the Company has paid or caused to be paid all other sums payable
     hereunder by the Company or the Guarantors; and

          (3)  the Company has delivered to the Trustee an Officer's Certificate
     and an Opinion of Counsel, each stating that all conditions precedent
     herein provided for relating to the satisfaction and discharge of this
     Indenture have been complied with.

Notwithstanding the satisfaction and discharge of this Indenture pursuant to
this Article IV, the obligations of the Company to the Trustee under Section
6.7, the obligations of the Company to any Authenticating Agent under Section
6.14 and, if money shall have been deposited with the Trustee pursuant to
subclause (B) of clause (1) of this Section, the obligations of the Trustee
under Section 4.2 and the last paragraph of Section 10.3 shall survive.

SECTION 4.2.  Application of Trust Money.

          Subject to the provisions of the last paragraph of Section 10.3, all
money deposited with the Trustee pursuant to Section 4.1 shall be held in trust
and applied by it, in accordance with the provisions of the Securities and this
Indenture, to the payment, either directly or through any Paying Agent
(including the Company acting as its own Paying Agent) as the Trustee may
determine, to the Persons entitled thereto, of the principal (and premium, if
any) and interest for whose payment such money has been deposited with the
Trustee.

                                   ARTICLE V

                                   Remedies

SECTION 5.1.  Events of Default.

          "Event of Default," wherever used herein, means any one of the
following events (whatever the reason for such Event of Default and whether it
shall be voluntary or involuntary or be effected by operation of law or pursuant
to any judgment, 

                                       52
<PAGE>
 
decree or order of any court or any order, rule or regulation of any
administrative or governmental body):

          (1)  default in the payment of the principal of or premium, if any,
     when due and payable, on any of the Securities (at Stated Maturity, upon
     optional redemption, required purchase or otherwise); or

          (2)  default in the payment of an installment of interest on any of
     the Securities, when due and payable, for 30 days; or

          (3)  default in the performance, or breach, of any covenant or
     agreement of the Company under this Indenture (other than a default in the
     performance or breach of a covenant or agreement which is specifically
     dealt with in clauses (1), (2) or (4)) and such default or breach shall
     continue for a period of 45 days after written notice has been given, by
     certified mail, (x) to the Company by the Trustee or (y) to the Company and
     the Trustee by the holders of at least 25% in aggregate principal amount of
     the Outstanding Securities; or

          (4)  (a) there shall be a default in the performance or breach of
     the provisions of Section 8.1 with respect to the Company; (b) the Company
     shall have failed to make or consummate an Asset Sale Offer in accordance
     with the provisions of Section 10.14; or (c) the Company shall have failed
     to make or consummate a Change of Control Offer in accordance with the
     provisions of Section 10.13; or

          (5)  default or defaults under one or more agreements, instruments,
     mortgages, bonds, debentures or other evidences of Indebtedness under which
     the Company or any Significant Subsidiary of the Company then has
     outstanding Indebtedness in excess of $15,000,000, individually or in the
     aggregate, and (a) such default or defaults include a failure to make a
     payment of principal, (b) such Indebtedness is already due and payable in
     full or (c) such default or defaults have resulted in the acceleration of
     the maturity of such Indebtedness; or

          (6)  one or more judgments, orders or decrees of any court or
     regulatory or administrative agency of competent jurisdiction for the
     payment of money in excess of $15,000,000, either individually or in the
     aggregate, shall be entered against the Company or any Significant
     Subsidiary of the Company or any of their respective properties and shall
     not be discharged and there shall have been a period of 60 days after the
     date on which any period for appeal has expired and during which a stay of
     enforcement 

                                       53
<PAGE>
 
     of such judgment, order or decree, shall not be in effect; or

          (7)  the entry of a decree or order by a court having jurisdiction
     in the premises (A) for relief in respect of the Company or any Significant
     Subsidiary in an involuntary case or proceeding under the Federal
     Bankruptcy Code or any other federal, state or foreign bankruptcy,
     insolvency, reorganization or similar law or (B) adjudging the Company or
     any Significant Subsidiary bankrupt or insolvent, or seeking
     reorganization, arrangement, adjustment or composition of or in respect of
     the Company or any Significant Subsidiary under the Federal Bankruptcy Code
     or any other similar federal, state or foreign law, or appointing a
     custodian, receiver, liquidator, assignee, trustee, sequestrator (or other
     similar official) of the Company or any Significant Subsidiary or of any
     substantial part of any of their properties, or ordering the winding up or
     liquidation of any of their affairs, and the continuance of any such decree
     or order unstayed and in effect for a period of 60 consecutive days; or

          (8)  the institution by the Company or any Significant Subsidiary of
     a voluntary case or proceeding under the Federal Bankruptcy Code or any
     other similar federal, state or foreign law or any other case or
     proceedings to be adjudicated a bankrupt or insolvent, or the consent by
     the Company or any Significant Subsidiary to the entry of a decree or order
     for relief in respect of the Company or any Significant Subsidiary in any
     involuntary case or proceeding under the Federal Bankruptcy Code or any
     other similar federal, state or foreign law or to the institution of
     bankruptcy or insolvency proceedings against the Company or any Significant
     Subsidiary, or the filing by the Company or any Significant Subsidiary of a
     petition or answer or consent seeking reorganization or relief under the
     Federal Bankruptcy Code or any other similar federal, state or foreign law,
     or the consent by it to the filing of any such petition or to the
     appointment of or taking possession by a custodian, receiver, liquidator,
     assignee, trustee or sequestrator (or other similar official) of any of the
     Company or any Significant Subsidiary or of any substantial part of its
     property, or the making by it of an assignment for the benefit of
     creditors, or the admission by it in writing of its inability to pay its
     debts generally as they become due or the taking of corporate action by the
     Company or any Significant Subsidiary in furtherance of any such action; or

          (9)  any of the Guarantees by a Significant Subsidiary ceases to be
     in full force and effect or any of such 

                                       54
<PAGE>
 
     Guarantees is declared to be null and void and unenforceable or any of such
     Guarantees is found to be invalid or any of such Guarantors denies its
     liability under its Guaranty (other than by reason of release of such
     Guarantor in accordance with the terms of this Indenture).

SECTION 5.2.  Acceleration of Maturity; Rescission and Annulment.

          If an Event of Default (other than those covered by clause (7) or (8)
of Section 5.1 with respect to the Company) shall occur and be continuing, the
Trustee, by notice to the Company, or the Holders of at least 25% in aggregate
principal amount of the Securities then Outstanding, by notice to the Trustee
and the Company, may declare the principal of, premium, if any, and accrued and
unpaid interest, if any, on all of the outstanding Securities due and payable
immediately, upon which declaration, all amounts payable in respect of the
Securities (i) shall be due and payable and (ii) if there are any amounts
outstanding under the New Credit Agreement, shall become immediately due and
payable upon the first to occur of an acceleration under the New Credit
Agreement or five business days after receipt by the Company and the
Representative under the New Credit Agreement of such notice of acceleration.
If an Event of Default specified in clause (7) or (8) of Section 5.1 with
respect to the Company occurs and is continuing, then the principal of, premium,
if any, and accrued and unpaid interest, if any, on all the outstanding
Securities shall ipso facto become and be immediately due and payable without
any declaration or other act on the part of the Trustee or any Holder of
Securities.

          After a declaration of acceleration under the Indenture, but before a
judgment or decree for payment of the money due has been obtained by the
Trustee, the Holders of a majority in aggregate principal amount of the
Outstanding Securities, by written notice to the Company and the Trustee, may
rescind such declaration if

          (1)  the Company has paid or deposited with the Trustee a sum
     sufficient to pay

               (A) all sums paid or advanced by the Trustee under this Indenture
          and the reasonable compensation, expenses, disbursements and advances
          of the Trustee, its agents and counsel,

               (B) all overdue interest on all Securities,

               (C) the principal of and premium, if any, on any Securities which
          have become due otherwise than 

                                       55
<PAGE>
 
          by such declaration of acceleration and interest thereon at the rate
          borne by the Securities, and

               (D) to the extent that payment of such interest is lawful,
          interest upon overdue interest and overdue principal at the rate set
          forth in the Securities which has become due otherwise than by such
          declaration of acceleration;

          (2)  the rescission would not conflict with any judgment or decree
     of a court of competent jurisdiction; and

          (3)  all Events of Default, other than the nonpayment of principal
     of, premium, if any, and interest on the Securities that have become due
     solely by such declaration of acceleration, have been cured or waived.

          No such rescission shall affect any subsequent default or impair any
right consequent thereto.

SECTION 5.3.  Collection of Indebtedness and Suits for Enforcement by Trustee.

          The Company and each Guarantor covenants that if

               (i)  default is made in the payment of any interest on any
     Security when such interest becomes due and payable and such default
     continues for a period of 30 days, or

               (ii) default is made in the payment of the principal of (or
     premium, if any, on) any Security on the due date for payment thereof,
     including, with respect to any Security required to have been purchased
     pursuant to a Change of Control Offer or an Asset Sale Offer made by the
     Company, at the Purchase Date thereof, the Company or such Guarantor will,
     upon demand of the Trustee, pay to it, for the benefit of the Holders of
     such Securities, the whole amount then due and payable on such Securities
     for principal (and premium, if any) and interest, and, to the extent that
     payment of such interest shall be legally enforceable, interest on any
     overdue principal (and premium, if any) and on any overdue interest, at the
     rate provided by the Securities, and, in addition thereto, such further
     amount as shall be sufficient to cover the costs and expenses of
     collection, including the reasonable compensation, expenses, disbursements
     and advances of the Trustee, its agents and counsel.

          In addition to the rights and powers set forth in Section 317(a) of
the Trust Indenture Act, the Trustee shall be entitled to file such other papers
or documents as may be necessary 

                                       56
<PAGE>
 
or advisable in order to have the claims of the Trustee and of the Holders of
the Securities allowed in any judicial proceeding relative to the Company, any
Guarantor or any other obligor upon the Securities, its creditors, or its
property, and to collect and receive any moneys or other property payable or
deliverable on any such claims, and to distribute the same after the deduction
of its charges and expenses; and any receiver, assignee or trustee in bankruptcy
or reorganization is hereby authorized by each of the Holders to make such
payments to the Trustee, and, in the event that the Trustee shall consent to the
making of such payments directly to the Holders, to pay to the Trustee any
amount due it for compensation and expenses, including counsel fees incurred by
it up to the date of such distribution.

          If an Event of Default occurs and is continuing, the Trustee may in
its discretion proceed to protect and enforce its rights and the rights of the
Holders by such appropriate judicial proceedings as the Trustee shall deem most
effectual to protect and enforce any such rights, whether for the specific
enforcement of any covenant or agreement in this Indenture or in aid of the
exercise of any power granted herein, or to enforce any other proper remedy.

SECTION 5.4.  Trustee May File Proofs of Claim.

          In case of any judicial proceeding relative to the Company, a
Guarantor (or any other obligor upon the Securities), its property or its
creditors, the Trustee shall be entitled and empowered, by intervention in such
proceeding or otherwise, to take any and all actions authorized under the Trust
Indenture Act in order to have claims of the Holders and the Trustee allowed in
any such proceeding.  In particular, the Trustee shall be authorized to collect
and receive any moneys or other property payable or deliverable on any such
claims and to distribute the same; and any custodian, receiver, assignee,
trustee, liquidator, sequestrator or other similar official in any such judicial
proceeding is hereby authorized by each Holder to make such payments to the
Trustee and, in the event that the Trustee shall consent to the making of such
payments directly to the Holders, to pay to the Trustee any amount due it for
the reasonable compensation, expenses, disbursements and advances of the
Trustee, its agents and counsel, and any other amounts due the Trustee under
Section 6.7.

          No provision of this Indenture shall be deemed to authorize the
Trustee to authorize or consent to or accept or adopt on behalf of any Holder
any plan of reorganization, arrangement, adjustment or composition affecting the
Securities or the rights of any Holder thereof or to authorize the Trustee to
vote in respect of the claim of any Holder in any such proceeding;

                                       57
<PAGE>
 
provided, however, that the Trustee may, on behalf of the Holders, vote for the
election of a trustee in bankruptcy or similar official and be a member of a
creditors, or other similar committee.

SECTION 5.5.  Trustee May Enforce Claims Without Possession of Securities.

          All rights of action and claims under this Indenture or the Securities
may be prosecuted and enforced by the Trustee without the possession of any of
the Securities or the production thereof in any proceeding relating thereto, and
any such proceeding instituted by the Trustee shall be brought in its own name
as trustee of an express trust, and any recovery of judgment shall, after
provision for the payment of the reasonable compensation, expenses,
distributions and advances of the Trustee, its agents and counsel, be for the
ratable benefit of the Holders of the Securities in respect of which such
judgment has been recovered.

SECTION 5.6.  Application of Money Collected.

          Any money collected by the Trustee pursuant to this Article shall be
applied in the following order, at the date or dates fixed by the Trustee and,
in case of the distribution of such money on account of principal (or premium,
if any) or interest, upon presentation of the Securities and the notation
thereon of the payment if only partially paid and upon surrender thereof if
fully paid:

          FIRST:  To the payment of all amounts due the Trustee under Section
     6.7;

          SECOND:  To the payment of the amounts then due and unpaid for
     principal of (and premium, if any) and interest on the Securities in
     respect of which or for the benefit of which such money has been collected,
     ratably, without preference or priority of any kind, according to the
     amounts due and payable on such Securities for principal (and premium, if
     any) and interest, respectively;

          THIRD:  To the payment of any and all other amounts due under the
     Indenture, the Securities or the Guarantees; and

          FOURTH:  To the Company (or such other Person as a court of competent
     jurisdiction may direct).

                                       58
<PAGE>
 
SECTION 5.7.  Limitation on Suits.

          Subject to Section 5.8, no Holder of any Security shall have and right
to institute any proceeding, judicial or otherwise, with respect to this
Indenture, or for the appointment of a receiver or trustee, or for any other
remedy hereunder, unless

             (i)   such Holder has previously given written notice to the
     Trustee of a continuing Event of Default;

             (ii)  the Holders of not less than 25% in principal amount of the
     Outstanding Securities shall have made written request to the Trustee to
     institute proceedings in respect of such Event of Default in its own name
     as Trustee hereunder;

             (iii) such Holder or Holders have offered to the Trustee
     reasonable indemnity against the costs, expenses and liabilities to be
     incurred in compliance with such request;

             (iv)  the Trustee for 60 days after its receipt of such notice,
     request and offer of indemnity has failed to institute any such proceeding;
     and

             (v)   no direction inconsistent with such written request has been
     given to the Trustee during such 60-day period by the Holders of a majority
     in principal amount of the Outstanding Securities;

     it being understood and intended that no one or more Holders shall have any
     right in any manner whatever by virtue of, or by availing of, any provision
     of this Indenture to affect, disturb or prejudice the rights of any other
     Holders, or to obtain or to seek to obtain priority or preference over any
     other Holders or to enforce any right under this Indenture, except in the
     manner herein provided and for the equal and ratable benefit of all the
     Holders.

SECTION 5.10.  Unconditional Right of Holders to Receive Principal, Premium and
               Interest. 

          Notwithstanding any other provision in this Indenture, the Holder of
any Security shall have the right, which is absolute and unconditional, to
receive payment of the principal of (and premium, if any) and (subject to
Section 3.7) interest on such Security on the respective Stated Maturities
expressed in such Security (or, in the case of redemption, on the Redemption
Date or in the case of a Change of Control Offer or an Asset 

                                       59
<PAGE>
 
Sale Offer made by the Company and required to be accepted as to such Security,
on the relevant Purchase Date) and to institute suit for the enforcement of any
such payment, and such rights shall not be impaired without the consent of such
Holder.

SECTION 5.11.  Restoration of Rights and Remedies.

          If the Trustee or any Holder has instituted any proceeding to enforce
any right or remedy under this Indenture and such proceeding has been
discontinued or abandoned for any reason, or has been determined adversely to
the Trustee or to such Holder, then and in every such case, subject to any
determination in such proceeding, the Company, each Guarantor, the Trustee and
the Holders shall be restored severally and respectively to their former
positions hereunder and thereafter all rights and remedies of the Trustee and
the Holders shall continue as though no such proceeding had been instituted,
subject to the determination in such proceeding.

SECTION 5.12.  Rights and Remedies Cumulative.

          Except as otherwise provided with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Securities in the last paragraph
of Section 3.6, no right or remedy herein conferred upon or reserved to the
Trustee or to the Holders is intended to be exclusive of any other right or
remedy, and every right and remedy shall, to the extent permitted by law, be
cumulative and in addition to every other right and remedy given hereunder or
now or hereafter existing at law or in equity or otherwise.  The assertion or
employment of any right or remedy hereunder, or otherwise, shall not prevent the
concurrent assertion or employment of any other appropriate right or remedy.

SECTION 5.13.  Delay or Omission Not Waiver.

          No delay or omission of the Trustee or of any Holder of any Security
to exercise any right or remedy accruing upon any Event of Default shall impair
any such right or remedy or constitute a waiver of any such Event of Default or
an acquiescence therein.  Every right and remedy given by this Article or by law
to the Trustee or to the Holders may be exercised from time to time, and as
often as may be deemed expedient, by the Trustee or by the Holders, as the case
may be.

SECTION 5.14.  Control by Holders.

          The Holders of a majority in principal amount of the Outstanding
Securities shall have the right to direct the time, 

                                       60
<PAGE>
 
method and place of conducting any proceeding for any remedy available to the
Trustee or exercising any trust or power conferred on the Trustee, provided that

             (i)  such direction shall not be in conflict with any rule of law
     or with this Indenture, and

             (ii) the Trustee may take any other action deemed proper by the
     Trustee which is not inconsistent with such direction.

SECTION 5.15.  Waiver of Past Defaults.

          The Holders of not less than a majority in principal amount of the
Outstanding Securities may on behalf of the Holders of all the Securities waive
any past default hereunder and its consequences, except a default

             (i)  in the payment of the principal of (or premium, if any) or
     interest on any Security (including any Security which is required to have
     been purchased pursuant to a Change of Control Offer or an Asset Sale Offer
     which has been made by the Company), or

             (ii) in respect of a covenant or provision hereof which under
     Article IX cannot be modified or amended without the consent of the Holder
     of each Outstanding Security affected.

          Upon any such waiver, such default shall cease to exist, and any Event
of Default arising therefrom shall be deemed to have been cured, for every
purpose of this Indenture; but no such waiver shall extend to any subsequent or
other default or impair any right consequent thereon.

SECTION 5.16.  Undertaking for Costs.

          In any suit for the enforcement of any right or remedy under this
Indenture, or in any suit against the Trustee for any action taken, suffered or
omitted by it as Trustee, a court may require any party litigant in such suit to
file an undertaking to pay the costs of such suit, and may assess costs against
any such party litigant, in the manner and to the extent provided in the Trust
Indenture Act; provided, that neither this Section nor the Trust Indenture Act
hall be deemed to authorize any court to require such an undertaking or to make
such an assessment in any suit instituted by the Company or a Guarantor, in any
suit instituted by the Trustee, in any suit instituted by any Holder or group of
Holders, holding in the aggregate more than 10% in principal amount of the
Outstanding Securities, or in any suit instituted by any Holder for the
enforcement 

                                       61
<PAGE>
 
of the payment of the principal of (or premium, if any) or interest on any
Security on or after the Stated Maturity expressed in such Security (or, in the
case of redemption, on or after the Redemption Date or, in the case of a Change
of Control Offer or an Asset Sale Offer, made by the Company and required to be
accepted as to such Security, on the applicable Purchase Date, as the case may
be).

SECTION 5.17.  Waiver of Stay or Extension Laws.

          The Company and each Guarantor covenants (to the extent that it may
lawfully do so) that it will not at any time insist upon, or plead, or in any
manner whatsoever claim or take the benefit or advantage of, any usury, stay or
extension law wherever enacted, now or at any time hereafter in force, which may
affect the covenants or the performance of this Indenture; and the Company and
each Guarantor (to the extent that it may lawfully do so) hereby expressly
waives all benefit or advantage of any such law and covenants that it will not
hinder, delay or impede the execution of any power herein granted to the
Trustee, but will suffer and permit the execution of every such power as though
no such law had been enacted.

                                  ARTICLE VI

                                  The Trustee

SECTION 6.1.  Certain Duties and Responsibilities.

          (a) Except during the continuance of an Event of Default,

              (i)   the Trustee undertakes to perform such duties and only such
     duties as are specifically set forth in this Indenture, and no implied
     covenants or obligations shall be read into this Indenture against the
     Trustee; and

             (ii)   in the absence of bad faith on its part, the Trustee may
     conclusively rely, as to the truth of the statements and the correctness of
     the opinions expressed therein, upon certificates or opinions furnished to
     the Trustee and conforming to the requirements of this Indenture; but in
     the case of any such certificates or opinions which by the provisions
     hereof are specifically required to be furnished to the Trustee, the
     Trustee shall be under a duty to examine the same to determine whether or
     not they conform to the requirements of this Indenture but need not verify
     the contents thereof.

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<PAGE>
 
          (b) In case an Event of Default has occurred and is continuing, the
     Trustee shall exercise such of the rights and powers vested in it by this
     Indenture, and use the same degree of care and skill in their exercise, as
     a prudent Person would exercise or use under the circumstances in the
     conduct of such Person's own affairs.

          (c) No provision of this Indenture shall be construed to relieve the
     Trustee from liability for its own negligent misconduct, except that no
     provision of this Indenture shall require the Trustee to expend or risk its
     own funds or otherwise incur any financial liability in the performance of
     any of its duties hereunder, or in the exercise of any of its rights or
     powers under this Indenture, unless the Trustee has received security and
     indemnity satisfactory to it against any loss, liability or expense.  The
     Trustee shall not be liable for any error of judgment unless it is proved
     that the Trustee was negligent in the performance of its duties hereunder.

          (d) Whether or not therein expressly so provided, every provision of
     this Indenture relating to the conduct or affecting the liability of or
     affording protection to the Trustee shall be subject to the provisions of
     this Section 6.1.

SECTION 6.2.  Notice of Defaults.

          Within 30 days after the occurrence of any Default, the Trustee shall
transmit by mail to all Holders, as their names and addresses appear in the
Security Register, notice of such Default hereunder known to the Trustee, unless
such Default shall have been cured or waived; provided, however, that, except in
the case of a Default in the payment of the principal of, premium, if any, or
interest on any Security, the Trustee shall be protected in withholding such
notice if and so long as a trust committee of Responsible Officers of the
Trustee in good faith determines that the withholding of such notice is in the
interest of the Holders.

SECTION 6.3.  Certain Rights of Trustee.

          Subject to the provisions of Section 6.1:

          (a) the Trustee may conclusively rely as to the truth of the
     statements and correctness of the opinions expressed therein and shall be
     fully protected in acting or refraining from acting upon any resolution,
     Officer's Certificate, certificate of auditors or any other certificate,
     statement, instrument, opinion, report, notice, request, direction,
     consent, order, bond, debenture, note, 

                                       63
<PAGE>
 
     other evidence of indebtedness or other paper or document believed by it to
     be genuine and to have been signed or presented by the proper party or
     parties;

          (b) any request or direction of the Company mentioned herein shall be
     sufficiently evidenced by a Company Request or Company Order and any
     resolution of the Board of Directors of the Company may be sufficiently
     evidenced by a Board Resolution of the Company;

          (c) whenever in the administration of this Indenture the Trustee shall
     deem it desirable that a matter be proved or established prior to taking,
     suffering or omitting any action hereunder, the Trustee (unless other
     evidence be herein specifically prescribed) may, in the absence of bad
     faith on its part, rely upon an Officer's Certificate directing the Trustee
     with respect to the taking, suffering or omitting any such action;

          (d) the Trustee may consult with counsel of its selection and the
     advice of such counsel or any Opinion of Counsel shall be full and complete
     authorization and protection in respect of any action taken, suffered or
     omitted by it hereunder in good faith and in reliance thereon;

          (e) the Trustee shall be under no obligation to exercise any of the
     rights or powers vested in it by this Indenture at the request or direction
     of any of the Holders pursuant to this Indenture, unless such Holders shall
     have offered to the Trustee reasonable security or indemnity against the
     costs, expenses and liabilities which might be incurred by it in compliance
     with such request or direction;

          (f) the Trustee shall not be bound to make any investigation into the
     facts or matters stated in any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, other evidence of indebtedness or other paper or
     document, but the Trustee, in its discretion, may make such further inquiry
     or investigation into such facts or matters as it may see fit, and, if the
     Trustee shall determine to make such further inquiry or investigation, it
     shall be entitled (subject to reasonable confidentiality arrangements as
     may be proposed by the Company or any Guarantor) to make reasonable
     examination (upon prior notice and during regular business hours) of the
     books, records and premises of the Company or a Guarantor, personally or by
     agent or attorney;

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<PAGE>
 
          (g) the Trustee may execute any of the trusts or powers hereunder or
     perform any duties hereunder either directly or by or through agents or
     attorneys or custodians or nominees and the Trustee shall not be
     responsible for the supervision of, or any misconduct or negligence on the
     part of any agent or attorney appointed with due care by it hereunder;

          (h) the Trustee shall not be liable for any action taken, suffered, or
     omitted to be taken by it in good faith and reasonably believed by it to be
     authorized or within the discretion or rights or powers conferred upon it
     by this Indenture; and

          (i) in the event that the Trustee is also acting as Authenticating
     Agent, Paying Agent or Security Registrar hereunder, the rights and
     protections afforded to the Trustee pursuant to this Article VI shall also
     be afforded to such Authenticating Agent, Paying Agent and Security
     Registrar.

SECTION 6.4.  Not Responsible for Recitals or Issuance of Securities.

          The recitals contained herein and in the Securities, except the
Trustee's certificates of authentication, shall be taken as the statements of
the Company, and the Trustee or any Authenticating Agent assumes no
responsibility for their correctness.  The Trustee makes no representations as
to the validity or sufficiency of this Indenture or of the Securities.  The
Trustee shall not be accountable for the use or application by the Company of
Securities or the proceeds thereof.

SECTION 6.5.  May Hold Securities.

          The Trustee, any Authenticating Agent, any Paying Agent, any Security
Registrar or any other agent of the Company or any Guarantor, in its individual
or any other capacity, may become the owner or pledgee of Securities and,
subject to Sections 6.8 and 6.13, may otherwise deal with the Company or a
Guarantor with the same rights it would have if it were not Trustee,
Authenticating Agent, Paying Agent, Security Registrar or such other agent.

SECTION 6.6.  Money Held in Trust.

          Money held by the Trustee in trust hereunder need not be segregated
from other funds except to the extent required by law.  The Trustee shall be
under no liability for interest on any money received by it hereunder except as
otherwise agreed in writing with the Company.

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<PAGE>
 
SECTION 6.7.  Compensation and Reimbursement.

          The Company agrees

          (1) to pay to the Trustee from time to time such reasonable
     compensation as the Company and the Trustee shall from time to time agree
     in writing for all services rendered by it hereunder (which compensation
     shall not be limited by any provision of law in regard to the compensation
     of a trustee of an express trust);

          (2) except as otherwise expressly provided herein, to promptly
     reimburse the Trustee upon its request for all reasonable expenses,
     disbursements and advances incurred or made by the Trustee in accordance
     with any provision of this Indenture (including the reasonable compensation
     and the expenses and disbursements of its agents and counsel), except any
     such expense, disbursement or advance as may be attributable to its
     negligence or bad faith; and

          (3) to indemnify the Trustee, its directors, officers, agents and
     employees for, and to hold them harmless against, any and all loss, damage,
     claim, liability or expense incurred without negligence or bad faith on its
     part, including taxes (other than taxes based upon, measured by or
     determined by the revenue or income of the Trustee), arising out of or in
     connection with the acceptance or administration of this trust, including
     the costs and expenses of defending itself against any claim or liability
     in connection with the exercise or performance of any of its powers or
     duties hereunder.

          The Trustee shall have a lien prior to the Securities as to all
property and funds held by it hereunder for any amount owing to it pursuant to
this Section 6.7, except with respect to funds held in trust for the benefit of
the Holders of particular Securities.

          When the Trustee incurs expenses or renders services in connection
with an Event of Default specified in Section 5.1(7) or Section 5.1(8), the
expenses (including the reasonable charges and expenses of its counsel) and the
compensation for the services are intended to constitute expenses of
administration under any applicable Federal or State bankruptcy, insolvency or
other similar law.

          The Company's obligations under this Section 6.7 shall survive the
termination of this Indenture.

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<PAGE>
 
SECTION 6.8.  Conflicting Interests.

          If the Trustee has or shall acquire a conflicting interest within the
meaning of the Trust Indenture Act, the Trustee shall either eliminate such
interest or resign, to the extent and in the manner provided by, and subject to
the provisions of, the Trust Indenture Act and this Indenture.

SECTION 6.9.  Corporate Trustee Required; Eligibility.

          There shall at all times be a Trustee hereunder which shall be a
Person that is eligible pursuant to the Trust Indenture Act to act as such and
has, or is a wholly-owned subsidiary of a bank holding company that has, a
combined capital and surplus of at least $100,000,000 and a Corporate Trust
Office in the Borough of Manhattan, The City of New York.  If such Person
publishes reports of condition at least annually, pursuant to law or to the
requirements of a Federal or State supervising or examining authority, then for
the purposes of this Section and to the extent permitted by the Trust Indenture
Act, the combined capital and surplus of such Person shall be deemed to be its
combined capital and surplus as set forth in its most recent report of condition
so published.  If at any time the Trustee shall cease to be eligible in
accordance with the provisions of this Section, it shall resign immediately in
the manner and with the effect hereinafter specified in this Article.

SECTION 6.10.  Resignation and Removal; Appointment of Successor.

          (a) No resignation or removal of the Trustee and no appointment of a
     successor Trustee pursuant to this Article shall become effective until the
     acceptance of appointment by the successor Trustee in accordance with the
     applicable requirements of Section 6.11.

          (b) The Trustee may resign at any time by giving written notice
     thereof to the Company.  If an instrument of acceptance by a successor
     Trustee in accordance with the applicable requirements of Section 6.11
     shall not have been delivered to the Company and the resigning Trustee
     within 30 days after the giving of such notice of resignation, the
     resigning Trustee may petition any court of competent jurisdiction for the
     appointment of a successor Trustee.

          (c) The Trustee may be removed at any time by Act of the Holders of a
     majority in principal amount of the 

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<PAGE>
 
     Outstanding Securities, delivered to the Trustee and to the Company.

          (d) If at any time:

              (i)   the Trustee shall fail to comply with Section 6.8 after
     written request therefor by the Company or by any Holder who has been a
     bona fide Holder of a Security for at least six months, or

              (ii)  the Trustee shall cease to be eligible under Section 6.9 and
     shall fail to resign after written request therefor by the Company, any
     Guarantor or by any such Holder, or

              (iii) the Trustee shall become incapable of acting or shall be
     adjudged a bankrupt or insolvent or a receiver of the Trustee or of its
     property shall be appointed or any public officer shall take charge or
     control of the Trustee or of its property or affairs for the purpose of
     rehabilitation, conservation or liquidation, then, in any such case, (i)
     the Company or any Guarantor, in each case by a Board Resolution, may
     remove the Trustee, or (ii) subject to Section 5.14, any Holder who has
     been a bona fide Holder of a Security for at least six months may, on
     behalf of himself and all others similarly situated, petition any court of
     competent jurisdiction for the removal of the Trustee and the appointment
     of a successor Trustee.

          (e) If the Trustee shall resign, be removed or become incapable of
     acting, or if a vacancy shall occur in the office of Trustee for any cause,
     the Company, by a Board Resolution, shall promptly appoint a successor
     Trustee.  If, within one year after such resignation, removal or
     incapability, or the occurrence of such vacancy, a successor Trustee shall
     be appointed by Act of the Holders of a majority in principal amount of the
     Outstanding Securities delivered to the Company and the retiring Trustee,
     the successor Trustee so appointed shall, forthwith upon its acceptance of
     such appointment in accordance with the applicable requirements of Section
     6.11, become the successor Trustee and supersede the successor Trustee
     appointed by the Company.  If no successor Trustee shall have been so
     appointed by the Company or the Holders and accepted appointment in
     accordance with the applicable requirements of Section 6.11, any Holder who
     has been a bona fide Holder of a Security for at least six months may, on
     behalf of himself and all others similarly situated, or 

                                       68
<PAGE>
 
     the Trustee petition any court of competent jurisdiction for the
     appointment of a successor Trustee.

          (f) The Company shall give notice of each resignation and each removal
     of the Trustee and each appointment of a successor Trustee to all Holders
     in the manner provided in Section 1.6. Each notice shall include the name
     of the successor Trustee and the address of its Corporate Trust Office.

          (g) The resignation or removal of the Trustee pursuant to this Section
     6.10 shall not affect the obligation of the Company to indemnify the
     Trustee pursuant to Section 6.7(3) in connection with the exercise or
     performance by the Trustee prior to its resignation or removal of any of
     its powers or duties hereunder.

          (h) No Trustee under this Indenture shall be liable for any action or
     omission of any successor Trustee.

SECTION 6.11.  Acceptance of Appointment by Successor.

          Every successor Trustee appointed hereunder shall execute, acknowledge
and deliver to the Company and to the retiring Trustee an instrument accepting
such appointment, and thereupon the resignation or removal of the retiring
Trustee shall become effective and such successor Trustee, without any further
act, deed or conveyance, shall become vested with all the rights, powers, trusts
and duties of the retiring Trustee; but, on request of the Company or the
successor Trustee, such retiring Trustee shall, upon payment of its charges,
execute and deliver an instrument transferring to such successor Trustee all the
rights, powers and trusts of the retiring Trustee and shall duly assign,
transfer and deliver to such successor Trustee all property and money held by
such retiring Trustee hereunder.  Upon request of any such successor Trustee,
the Company shall execute any and all instruments for more fully and certainly
vesting in and confirming to such successor Trustee all such rights, powers and
trusts.

          No successor Trustee shall accept its appointment unless at the time
of such acceptance such successor Trustee shall be qualified and eligible under
this Article.

SECTION 6.12.  Merger, Conversion, Consolidation or Succession to Business.

          Any corporation into which the Trustee may be merged or converted or
with which it may be consolidated, or any corporation resulting from any merger,
conversion or consolidation 

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<PAGE>
 
to which the Trustee shall be a party, or any corporation succeeding to all or
substantially all the corporate trust business of the Trustee, shall be the
successor of the Trustee hereunder, provided such corporation shall be otherwise
qualified and eligible under this Article, without the execution or filing of
any paper or any further act on the part of any of the parties hereto. In case
any Securities shall have been authenticated, but not delivered, by the Trustee
then in office, any successor by merger, conversion or consolidation to such
authenticating Trustee may adopt such authentication and deliver the Securities
so authenticated with the same effect as if such successor Trustee had itself
authenticated such Securities.

SECTION 6.13.  Preferential Collection of Claims Against the Company or a
               Guarantor.

          If and when the Trustee shall be or become a creditor of the Company
or a Guarantor (or any other obligor upon the Securities), the Trustee shall be
subject to the provisions of the Trust Indenture Act regarding the collection of
claims against the Company or such Guarantor (or any such other obligor).

SECTION 6.14.  Appointment of Authenticating Agent.

          The Trustee may appoint an Authenticating Agent or Agents which shall
be authorized to act on behalf of the Trustee to authenticate Securities issued
upon original issue and upon exchange, registration of transfer or partial
redemption or partial purchase or pursuant to Section 3.6, and Securities so
authenticated shall be entitled to the benefits of this Indenture and shall be
valid and obligatory for all purposes as if authenticated by the Trustee
hereunder.  Wherever reference is made in this Indenture to the authentication
and delivery of Securities by the Trustee or the Trustee's certificate of
authentication, such reference shall be deemed to include authentication and
delivery on behalf of the Trustee by an Authenticating Agent and a certificate
of authentication executed on behalf of the Trustee by an Authenticating Agent.
Each Authenticating Agent shall be acceptable to the Company and shall at all
times be a corporation organized and doing business under the laws of the United
States of America, any State thereof or the District of Columbia, authorized
under such laws to act as Authenticating Agent, having a combined capital and
surplus of not less than $100,000,000 and subject to supervision or examination
by Federal or State authority.  If such Authenticating Agent publishes reports
of condition at least annually, pursuant to law or to the requirements of said

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<PAGE>
 
supervising or examining authority, then for the purposes of this Section, the
combined capital and surplus of such Authenticating Agent shall be deemed to be
its combined capital and surplus as set forth in its most recent report of
condition so published.  If at any time an Authenticating Agent shall cease to
be eligible in accordance with the provisions of this Section, such
Authenticating Agent shall resign immediately in the manner and with the effect
specified in this Section.

          Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such Authenticating Agent
shall be a party, or any corporation succeeding to all or substantially all of
the corporate agency or corporate trust business of an Authenticating Agent,
shall continue to be an Authenticating Agent, provided such corporation shall be
otherwise eligible under this Section, without the execution or filing of any
paper or any further act on the part of the Trustee or the Authenticating Agent.

          An Authenticating Agent may resign at any time by giving written
notice thereof to the Trustee and to the Company.  The Trustee may at any time
terminate the agency of an Authenticating Agent by giving written notice thereof
to such Authenticating Agent and to the Company.  Upon receiving such a notice
of resignation or upon such a termination, or in case at any time such
Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section, the Trustee may appoint a successor Authenticating
Agent which shall be acceptable to the Company and shall give notice of such
appointment in the manner provided in Section 1.6, to all Holders as their names
and addresses appear in the Security Register.  Any successor Authenticating
Agent upon acceptance of its appointment hereunder shall become vested with all
the rights, powers and duties of its predecessor hereunder, with like effect as
if originally named as an Authenticating Agent.  No successor Authenticating
Agent shall be appointed unless eligible under the provisions of this Section.

          The Company agrees to pay to each Authenticating Agent from time to
time reasonable compensation for its services under this Section.

          If an appointment is made pursuant to this Section, the Securities may
have endorsed thereon, in addition to the Trustee's certificate of
authentication, an alternative certificate of authentication in the following
form:

          This is one of the Securities described in the within-mentioned
Indenture.

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<PAGE>
 
Dated:

                       State Street Bank and Trust Company,
                                   As Trustee

                              By:
                                 -----------------------------
                                    As Authenticating Agent

                              By:
                                 -----------------------------
                                      Authorized Signatory


                                  ARTICLE VII

               Holders' Lists and Reports by Trustee and Company

SECTION 7.1.  Company to Furnish Trustee Names and Addresses of Holders.

          The Company will furnish or cause to be furnished to the Trustee (a)
semiannually, not more than 10 days after each Regular Record Date, a list, in
such form as the Trustee may reasonably require, of the names and addresses of
the Holders as of such Regular Record Date; and (b) at such times as the Trustee
may reasonably request in writing, within 30 days after the receipt by the
Company of any such request, a list of similar form and content to that in
subsection (a) hereof as of a date not more than 15 days prior to the time such
list is furnished; excluding from any such list names and addresses received by
the Trustee in its capacity as Security Registrar.

SECTION 7.2.  Preservation of Information; Communications to Holders.

          (a) The Trustee shall preserve, in as current a form as is reasonably
practicable, the names and addresses of Holders contained in the most recent
list furnished to the Trustee as provided in Section 7.1 and the names and
addresses of Holders received by the Trustee in its capacity as Security
Registrar, if so acting.

          (b) The rights of Holders to communicate with other Holders with
respect to their rights under this Indenture or under the Securities, and the
corresponding rights and duties of the Trustee, shall be as provided by the
Trust Indenture Act.

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<PAGE>
 
          (c) Every Holder of Securities, by receiving and holding the same,
agrees with the Company and the Trustee that neither the Company, any Guarantor
nor the Trustee nor any agent of either of them shall be held accountable by
reason of any disclosure of information as to the names and addresses of Holders
made pursuant to the Trust Indenture Act.

SECTION 7.3.  Reports by Trustee.

          (a) Within 60 days after May 15 of each year commencing May 15, 1999,
the Trustee shall transmit to Holders such reports concerning the Trustee and
its actions under this Indenture to the extent required pursuant to the Trust
Indenture Act at the times and in the manner provided pursuant thereto.

          (b) A copy of each such report shall, at the time of such transmission
to Holders, be filed by the Trustee with each stock exchange upon which the
Securities are listed, with the Commission and with the Company.  The Company
will promptly notify the Trustee when the Securities are listed on any stock
exchange.

SECTION 7.4.  Reports by Company.

          The Company shall file with the Trustee and the Commission, and
transmit to Holders, such information, documents and other reports, and such
summaries thereof, as may be required pursuant to the Trust Indenture Act at the
times and in the manner provided pursuant to the Trust Indenture Act; provided
that any such information, documents or reports required to be filed with the
Commission pursuant to Section 13 or 15(d) of the Exchange Act shall be filed
with the Trustee within 15 days after the same is so required to be filed with
the Commission.

                                 ARTICLE VIII

             Consolidation, Merger, Conveyance, Transfer or Lease

SECTION 8.1.  Company or Guarantor May Consolidate, Etc. Only on Certain Terms.

          (A) Neither the Company nor, except as otherwise provided by Section
13.5, any Guarantor will, in any transaction or series of transactions, merge or
consolidate with or into, or sell, assign, convey, transfer, lease or otherwise
dispose of all or substantially all of its properties and assets 

                                       73
<PAGE>
 
as an entirety to, any Person or Persons, and (B) the Company will not permit
any of its Restricted Subsidiaries to enter into any such transaction or series
of transactions if such transaction or series of transactions, in the aggregate,
would result in a sale, assignment, conveyance, transfer, lease or other
disposition of all or substantially all of the properties and assets of the
Company or the Company and its Restricted Subsidiaries, taken as a whole, to any
other Person or Persons, unless, in each of cases (A) and (B), at the time and
after giving effect thereto by:

          (1)  either:

               (x) if the transaction or series of transactions is a merger or
               consolidation, the Company, the Guarantor or such Restricted
               Subsidiary, as the case may be, shall be the surviving Person of
               such merger or consolidation, or

               (y) the Person formed by such consolidation or into which the
               Company, such Guarantor or such Restricted Subsidiary, as the
               case may be, is merged or to which the properties and assets of
               the Company, such Guarantor or such Restricted Subsidiary, as the
               case may be, substantially as an entirety, are transferred (any
               such surviving Person or transferee Person being the "Surviving
               Entity") shall be a corporation organized and existing under the
               laws of the United States of America, any state thereof or the
               District of Columbia and shall expressly assume by a supplemental
               indenture executed and delivered to the Trustee, in form
               satisfactory to the Trustee, (i) in the case of the Company, all
               the obligations of the Company under the Securities, this
               Indenture and the Registration Rights Agreement and (ii) in the
               case of a Guarantor, all the obligations of such Guarantor under
               its Guaranty, this Indenture and the Registration Rights
               Agreement, and in each case, this Indenture, the Securities, the
               Guarantees and the Registration Rights Agreement shall remain in
               full force and effect;

          (2) immediately after giving effect to such transaction or series
     of transactions on a pro forma basis (including, without limitation, any
     Indebtedness incurred or anticipated to be incurred in connection with or
     in respect of such transaction or series of transactions), no Default or
     Event of Default shall have occurred and be continuing; and

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<PAGE>
 
          (3) except in the case of any merger of the Company with any
     Wholly-Owned Restricted Subsidiary of the Company or any merger of
     Guarantors, in each case with no other Person, the Company or the Surviving
     Entity, as the case may be, after giving effect to such transaction or
     series of transactions on a pro forma basis (including, without limitation,
     any Indebtedness incurred or anticipated to be incurred in connection with
     or in respect of such transaction or series of transactions), could incur
     $1.00 of additional Indebtedness (other than Permitted Indebtedness) under
     Section 10.8 (assuming a market rate of interest with respect to such
     additional Indebtedness).

          In connection with any consolidation, merger, transfer, lease,
assignment or other disposition contemplated by the foregoing provisions of this
Section 8.1, the Company shall deliver, or cause to be delivered, to the
Trustee, in form and substance reasonably satisfactory to the Trustee, an
Officer's Certificate and an Opinion of Counsel, each stating that such
consolidation, merger, transfer, lease, assignment, or other disposition and the
supplemental indenture in respect thereof (required under clause (1)(y) of this
Section 8.1) comply with the requirements of this Indenture.  Each such
Officer's Certificate shall set forth the manner of determination of the ability
to incur Indebtedness in accordance with clause (3) of this Section 8.1.

SECTION 8.2.  Successor Substituted.

          Except as otherwise provided by Section 13.5, upon any consolidation
or merger, or any sale, assignment, conveyance, transfer, lease or disposition
of all or substantially all of the properties and assets of the Company or a
Guarantor in accordance with Section 8.1, the successor Person formed by such
consolidation or into which the Company, such Guarantor or a Restricted
Subsidiary, as the case may be, is merged or the successor Person to which such
sale, assignment, conveyance, transfer, lease or disposition is made shall
succeed to, and be substituted for, and may exercise every right and power of
the Company or Guarantor under the Securities, such Guarantor's Guaranty, this
Indenture and/or the Registration Rights Agreement, as applicable, with the same
effect as if such successor had been named as the Company or Guarantor in the
Securities, such Guaranty, this Indenture and/or in the Registration Rights
Agreement, as the case may be, and, except in the case of a lease, the Company,
the Guarantor or such Restricted Subsidiary, as the case may be, shall be
automatically and unconditionally released and discharged from its obligations
thereunder.

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          For all purposes of this Indenture and the Securities (including the
provisions of this Article VIII and Sections 10.8, 10.9 and 10.12), Subsidiaries
of any Surviving Entity shall, upon consummation of such transaction or series
of related transactions, become Restricted Subsidiaries unless and until
designated Unrestricted Subsidiaries pursuant to and in accordance with Section
10.18 and all Indebtedness, and all Liens on property or assets, of the Company,
any Guarantor and the Restricted Subsidiaries in existence immediately prior to
such transaction or series of related transactions will be deemed to have been
incurred upon consummation of such transaction or series of related
transactions.

                                  ARTICLE IX

                 Amendments; Waivers; Supplemental Indentures

SECTION 9.1.  Amendments, Waivers and Supplemental Indentures Without Consent of
              Holders.

          Without the consent of any Holders, the Company and each Guarantor,
when authorized by Board Resolutions, and the Trustee, at any time and from time
to time, may together amend, waive or supplement this Indenture, for any of the
following purposes:

              (i)   to evidence the succession of another Person to the Company
     or a Guarantor and the assumption by any such successor of the covenants of
     the Company or such Guarantor herein and in the Securities or such
     Guarantor's Guaranty and to evidence the assumption of obligations under
     this Indenture and a Guaranty pursuant to Section 10.17; or

              (ii)  to add to the covenants of the Company or a Guarantor for
     the benefit of the Holders, or to surrender any right or power herein
     conferred upon the Company or a Guarantor; or

              (iii) to secure the Securities pursuant to the requirements of
     Section 10.12 or otherwise; or

              (iv)  to comply with any requirements of the Commission in order
     to effect or maintain the qualification of this Indenture under the Trust
     Indenture Act; or

              (v)   to cure any ambiguity, to correct or supplement any
     provision herein which may be defective or inconsistent 

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<PAGE>
 
     with any other provision herein, or to make any other provisions with
     respect to matters or questions arising under this Indenture which shall
     not be inconsistent with the provisions of this Indenture,

provided that (a) such amendment, waiver or supplement does not adversely affect
the rights of any Holder of Securities and (b) the Company shall have delivered
to the Trustee an Opinion of Counsel stating that such action pursuant to
clauses (i), (ii), (iii), (iv) or (v) above is permitted by this Indenture.  The
Trustee shall not be obligated to enter into any such amendment or supplemental
indenture that adversely affects its own rights, duties or immunities under this
Indenture or otherwise.

SECTION 9.2.  Modifications, Amendments and Supplemental Indentures with Consent
              of Holders.

          With the consent of the Holders of not less than a majority in
principal amount of the Outstanding Securities, by Act of said Holders delivered
to the Company and the Trustee, the Company and the Guarantors, when authorized
by Board Resolutions, and the Trustee may together modify, amend or supplement
this Indenture for the purpose of adding any provisions to or changing in any
manner or eliminating any of the provisions of this Indenture or of modifying in
any manner the rights of the Holders under this Indenture; provided, however,
that no such modification, amendment or supplemental indenture shall, without
the consent of the Holder of each Outstanding Security affected thereby,

              (i)   reduce the principal amount of, change the fixed maturity of
     or alter the redemption provisions of, the Securities,

              (ii)  change the currency in which any Securities or any premium
     or the interest thereon is payable,

              (iii) reduce the percentage in principal amount of Outstanding
     Securities that must consent to an amendment, supplement or waiver or
     consent to take any action under the Indenture or the Securities or any
     Guaranty,

              (iv)  impair the right to institute suit for the enforcement of
     any payment on or with respect to the Securities or any Guaranty,

              (v)   waive a default in payment with respect to the Securities or
     any Guaranty,

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<PAGE>
 
              (vi)   amend, change or modify the obligation of the Company to
     make and consummate a Change of Control Offer after the occurrence of a
     Change of Control or make and consummate an Asset Sale Offer with respect
     to any Asset Sale that has been consummated or modify any of the provisions
     or definitions with respect thereto,

              (vii)  reduce or change the rate or time for payment of interest
     on the Securities, or

              (viii) modify or change any provision of this Indenture affecting
     the subordination or ranking of the Security or any Guarantee in a manner
     which adversely affects the holders of Securities.

          It shall not be necessary for any Act of Holders under this Section to
approve the particular form of any proposed amendment or supplemental indenture,
but it shall be sufficient if such Act shall approve the substance thereof.

          The Trustee shall join with the Company and each Guarantor in the
execution of such amended or supplemental indenture unless such amended or
supplemental indenture affects the Trustee's own rights, duties or immunities
under this Indenture or otherwise, in which case the Trustee may in its
discretion but shall not be obligated to enter into such amendment or
supplemental indenture.

          In addition, no modification, amendment or supplement to the
provisions of Article XIV which is adverse to the interests of the lenders under
the Credit Facility shall be made without the consent of the representative of
such lenders.

SECTION 9.3.  Execution of Supplemental Indentures.

          In executing, or accepting the additional trusts created by, any
supplemental indenture permitted by this Article or the modifications thereby of
the trusts created by this Indenture, the Trustee shall be entitled to receive,
and (subject to Section 6.1) shall be fully protected in relying upon, an
Opinion of Counsel stating that the execution of such supplemental indenture is
authorized or permitted by this Indenture.  The Trustee may, but shall not be
obligated to, enter into any such supplemental indenture which affects the
Trustee's own rights, duties or immunities under this Indenture or otherwise;
provided that the Trustee shall enter into and execute all other supplemental
indentures which satisfy all applicable conditions under this Article IX.

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<PAGE>
 
SECTION 9.4.  Effect of Supplemental Indentures.

          Upon the execution of any supplemental indenture under this Article,
this Indenture shall be modified in accordance therewith, and such supplemental
indenture shall form a part of this Indenture for all purposes; and every Holder
of Securities theretofore or thereafter authenticated and delivered hereunder
shall be bound thereby.

SECTION 9.5.  Conformity with Trust Indenture Act.

          Every supplemental indenture executed pursuant to this Article shall
conform to the requirements of the Trust Indenture Act as then in effect.

SECTION 9.6.  Reference in Securities to Supplemental Indentures.

          Securities authenticated and delivered after the execution of any
supplemental indenture pursuant to this Article may, and shall if required by
the Trustee, bear a notation in form approved by the Trustee as to any matter
provided for in such supplemental indenture, provided that any failure by the
Trustee to make such notation shall not affect the validity of the matter
provided for in such supplemental indenture or any Security or Guarantee
hereunder.  If the Company shall so determine, new Securities or Guarantees so
modified as to conform, in the opinion of the Trustee, the Guarantors and the
Company, to any such supplemental indenture may be prepared and executed by the
Company or Guarantor and authenticated and delivered by the Trustee in exchange
for Outstanding Securities.

SECTION 9.7.  Waiver of Certain Covenants.

          The Company may omit in any particular instance to comply with any
covenant or condition set forth in Section 8.1, provided pursuant to Section
9.1(2) and set forth in Sections 10.4 to 10.12 and 10.15 to 10.18, inclusive, if
before the time for such compliance the Holders of at least a majority in
principal amount of the Outstanding Securities shall, by Act of such Holders,
either waive such compliance in such instance or generally waive compliance with
such covenant or condition, but no such waiver shall extend to or affect such
covenant or condition except to the extent so expressly waived, and, until such
waiver shall become effective, the obligations of the Company and the duties of
the Trustee in respect of any such covenant or condition shall remain in full
force and effect; provided, however, with respect to an Offer as to which an
Offer to Purchase has been mailed, no such waiver may be made or 

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<PAGE>
 
shall be effective against any Holder tendering Securities pursuant to such
Offer, and the Company may not omit to comply with the terms of such Offer as to
such Holder.

SECTION 9.8.  No Liability for Certain Persons.

          No present or future incorporator, director, officer, employee, or
stockholder of the Company, nor any present or future incorporator, director,
officer or employees of any Guarantor, as such, shall have any liability
directly or indirectly for any obligations of the Company or any Guarantor under
the Securities, the Guarantees or this Indenture based on or by reason of such
obligations or their creation whether by virtue of any constitution, statute,
rule or law, or by the enforcement of any assessment or penalty or otherwise, it
being expressly agreed and understood that this Indenture, the Securities,
Guarantees and obligations are solely corporate obligations.  Each Holder by
accepting a Security waives and releases all such liability.  The foregoing
waiver and release is an integral part of the consideration for the issuance of
the Securities and the Guarantees.


                                   ARTICLE X

                                   Covenants

SECTION 10.1.  Payment of Principal, Premium and Interest.

          The Company shall duly and punctually pay the principal of (and
premium, if any) and interest on the Securities in accordance with the terms of
the Securities and this Indenture.

SECTION 10.2.  Maintenance of Office or Agency.

          The Company shall maintain in the Borough of Manhattan, The City of
New York, an office or agency where Securities may be presented or surrendered
for payment, where Securities may be surrendered for registration of transfer or
exchange and where notices and demands to or upon the Company or any Guarantor
in respect of the Securities, the Guarantees and this Indenture may be served.
The Company shall give prompt written notice to the Trustee of the location, and
any change in the location, of such office or agency.  If at any time the
Company shall fail to maintain any such required office or agency or shall fail
to furnish the Trustee with the address thereof, such presentations, surrenders,
notices and demands may be made or served at the Corporate Trust Office of the
Trustee, and the Company hereby appoints the Trustee as its agent to receive all

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<PAGE>
 
such presentations, surrenders, notices and demands.  In the event any such
notice or demands are so made or served on the Trustee, the Trustee shall
promptly forward copies thereof to the Company.

          The Company may also from time to time designate one or more other
offices or agencies (in or outside the Borough of Manhattan, The City of New
York) where the Securities may be presented or surrendered for any or all such
purposes and may from time to time rescind such designations; provided, however,
that no such designation or rescission shall in any manner relieve the Company
of its obligation to maintain an office or agency in the Borough of Manhattan,
The City of New York, for such purposes.  The Company shall give prompt written
notice to the Trustee of any such designation or rescission and of any change in
the location of any such other office or agency.

SECTION 10.3.  Money for Security Payments to be Held in Trust.

          If the Company shall at any time act as its own Paying Agent, it will,
on or before each due date of the principal of (and premium, if any) or interest
on any of the Securities, segregate and hold in trust for the benefit of the
Persons entitled thereto a sum sufficient to pay the principal (and premium, if
any) or interest so becoming due until such sums shall be paid to such Persons
or otherwise disposed of as herein provided and will promptly notify the Trustee
of its action or failure so to act.

          Whenever the Company shall have one or more Paying Agents, the Company
will, prior to 11:00 a.m. New York City time on each due date of the principal
of (and premium, if any) or interest on any Securities, deposit with a Paying
Agent a sum sufficient to pay the principal (and premium, if any) or interest so
becoming due, such sum to be held as provided by the Trust Indenture Act, and
(unless such Paying Agent is the Trustee) the Company will promptly notify the
Trustee of its action or failure so to act.

          The Company shall cause each Paying Agent other than the Trustee to
execute and deliver to the Trustee an instrument in which such Paying Agent
shall agree with the Trustee, subject to the provisions of this Section, that
such Paying Agent will:  (i) comply with the provisions of the Trust Indenture
Act applicable to it as Paying Agent and (ii) during the continuance of any
default by the Company (or any other obligor upon the Securities) in the making
of any payment in respect of the Securities, upon the written request of the
Trustee, forthwith pay to the Trustee all sums held in trust by such Paying
Agent as such.

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<PAGE>
 
          The Company may at any time, for the purpose of obtaining the
satisfaction and discharge of this Indenture or for any other purpose, pay, or
by Company Order direct any Paying Agent to pay, to the Trustee all sums held in
trust by such Paying Agent, such sums to be held by the Trustee upon the same
trusts as those upon which such sums were held by such Paying Agent; and, upon
such payment by any Paying Agent (other than the Company) to the Trustee, such
Paying Agent shall be released from all further liability with respect to such
money.

          Any money deposited with the Trustee or any Paying Agent, or then held
by the Company, in trust for the payment of the principal of (and premium, if
any) or interest on any Security and remaining unclaimed for two years after
such principal (and premium, if any) or interest has become due and payable
shall be paid to the Company on Company Request, or (if then held by the
Company) shall be discharged from such trust; and the Holder of such Security
shall thereafter, as an unsecured general creditor, look only to the Company for
payment thereof, and all liability of the Trustee or such Paying Agent with
respect to such trust money, and all liability of the Company as trustee
thereof, shall thereupon cease; provided, however, that the Trustee or such
Paying Agent, before being required to make any such repayment, may at the
expense of the Company cause to be published once, in a newspaper published in
the English language, customarily published on each Business Day and of general
circulation in The City of New York, notice that such money remains unclaimed
and that, after a date specified therein, which shall not be less than 30 days
from the date of such publication, any unclaimed balance of such money then
remaining will be repaid to the Company.

SECTION 10.4.  Existence; Activities.

          Subject to Article VIII, the Company shall do or cause to be done all
things necessary to preserve and keep in full force and effect its existence,
rights (charter and statutory) and material franchises; provided, however, that
the Company shall not be required to preserve any such right or franchise if the
Board of Directors of the Company in good faith shall determine that the
preservation thereof is no longer desirable in the conduct of the business of
the Company and that the loss thereof is not disadvantageous in any material
respect to the Holders.

SECTION 10.5.  Maintenance of Properties.

          The Company shall cause all material properties used in the conduct of
its business or the business of any Restricted Subsidiary to be maintained and
kept in good condition, repair and working order (regular wear and tear

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excepted), all as in the judgment of the Company may be necessary so that the
business carried on in connection therewith may be properly and advantageously
conducted at all times; provided, however, that nothing in this Section shall
prevent the Company from disposing of any asset (subject to compliance with
Section 10.14) or from discontinuing the operation or maintenance of any of such
material properties if such discontinuance is, as determined by the Company in
good faith, desirable in the conduct of its business or the business of any
Restricted Subsidiary and not disadvantageous in any material respect to the
Holders.

SECTION 10.6.  Payment of Taxes and Other Claims.

          The Company shall pay or discharge or cause to be paid or discharged,
before the same shall become delinquent, (1) all taxes, assessments and
governmental charges levied or imposed upon the Company or any of its Restricted
Subsidiaries or upon the income, profits or property of the Company or any of
its Restricted Subsidiaries, and (2) all lawful material claims for labor,
materials and supplies which, if unpaid, might by law become a lien upon
property of the Company or any of its Restricted Subsidiaries; provided,
however, that the Company shall not be required to pay or discharge or cause to
be paid or discharged any such tax, assessment, charge or claim whose amount,
applicability or validity is being contested in good faith by appropriate
proceedings.

SECTION 10.7.  Maintenance of Insurance.

          The Company shall, and shall cause its Restricted Subsidiaries to,
keep at all times all of their material properties which are of an insurable
nature insured against loss or damage with insurers believed by the Company to
be responsible to the extent that property of similar character is usually so
insured by corporations similarly situated and owning like properties in
accordance with good business practice.  The Company shall, and shall cause its
Restricted Subsidiaries to, use the proceeds from any such insurance policy to
repair, replace or otherwise restore all material properties to which such
proceeds relate, provided, however, that the Company shall not be required to
repair, replace or otherwise restore any such material property if the Company
in good faith determines that such inaction is desirable in the conduct of the
business of the Company or any Restricted Subsidiary and not disadvantageous in
any material respect to the Holders.

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<PAGE>
 
SECTION 10.8.  Limitation on Indebtedness.

          The Company shall not, and shall not permit any of its Restricted
Subsidiaries to, directly or indirectly, create, incur, issue, assume, guarantee
or in any manner become directly or indirectly liable, contingently or otherwise
(in each case, to "incur"), for the payment of any Indebtedness (including any
Acquired Indebtedness) other than Permitted Indebtedness; provided, however,
that (i) the Company and any Guarantor will be permitted to incur Indebtedness
(including Acquired Indebtedness), and (ii) a Restricted Subsidiary will be
permitted to incur Acquired Indebtedness, if in each case, after giving pro
forma effect to (1) the incurrence of such Indebtedness and (if applicable) the
application of the net proceeds therefrom, including to refinance other
Indebtedness, as if such Indebtedness were incurred at the beginning of the four
full fiscal quarters immediately preceding such incurrence, taken as one period;
(2) the incurrence, repayment or retirement of any other Indebtedness or any
obligations giving rise to Consolidated Rental Payments by the Company and its
Restricted Subsidiaries since the first day of such four-quarter period as if
such Indebtedness or obligations were incurred, repaid or retired at the
beginning of such four-quarter period (except that, in making such computation,
the amount of Indebtedness under any revolving credit facility shall be computed
based upon the average daily balance of such Indebtedness during such four-
quarter period); and (3) any Asset Sale or Asset Acquisition occurring since the
first day of such four-quarter period (including to the date of calculation) as
if such acquisition or disposition occurred at the beginning of such four-
quarter period, the Consolidated Fixed Charge Coverage Ratio of the Company is
at least 2:1.

SECTION 10.9.  Limitation on Restricted Payments.

          The Company shall not, and shall not permit any of its Restricted
Subsidiaries to, directly or indirectly:

          (a) declare or pay any dividend or make any other distribution or
     payment on or in respect of Capital Stock of the Company or any of its
     Restricted Subsidiaries or make any payment to the direct or indirect
     holders (in their capacities as such) of Capital Stock of the Company or
     any of its Restricted Subsidiaries (other than dividends or distributions
     payable solely in Capital Stock of the Company (other than Redeemable
     Capital Stock) or in options, warrants or other rights to purchase Capital
     Stock of the Company (other than Redeemable Capital Stock)) (other than the
     declaration or payment of dividends or other distributions to the extent
     declared or paid to the Company or any Restricted Subsidiary);

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<PAGE>
 
          (b) purchase, redeem, or otherwise acquire or retire for value any
     Capital Stock of the Company or any of its Restricted Subsidiaries or any
     options, warrants, or other rights to purchase any such Capital Stock
     (other than any securities owned by the Company or a Restricted
     Subsidiary);

          (c) make any principal payment on, or purchase, defease, repurchase,
     redeem or otherwise acquire or retire for value, prior to any scheduled
     maturity, scheduled repayment, scheduled sinking fund payment or other
     Stated Maturity, any Subordinated Indebtedness outstanding on the Issue
     Date (other than any such Subordinated Indebtedness owed by the Company or
     a Restricted Subsidiary); or

          (d) make any Investment (other than any Permitted Investment) in any
     Person, (such payments or Investments described in the preceding clauses
     (a), (b), (c) and (d) are collectively referred to as "Restricted
     Payments"), unless, after giving effect to the proposed Restricted Payment
     (the amount of any such Restricted Payment, if other than cash, shall be
     the Fair Market Value of the asset(s) proposed to be transferred by the
     Company or such Restricted Subsidiary, as the case may be, pursuant to such
     Restricted Payment), (A) no Default or Event of Default shall have occurred
     and be continuing, (B) immediately after giving effect to such Restricted
     Payment, the Company would be able to incur $1.00 of additional
     Indebtedness (other than Permitted Indebtedness) and (C) the aggregate
     amount of all Restricted Payments declared or made from and after the Issue
     Date would not exceed the sum of:

          (1) 50% of the aggregate Consolidated Net Income of the Company
     accrued on a cumulative basis during the period beginning on the Issue Date
     and ending on the last day of the fiscal quarter of the Company ending
     immediately prior to the date of such proposed Restricted Payment (or, if
     such aggregate cumulative Consolidated Net Income of the Company for such
     period shall be a loss, minus 100% of such loss);

          (2) the aggregate net cash proceeds received by the Company as
     capital contributions to the Company after the Issue Date and which
     constitute shareholders' equity of the Company in accordance with GAAP;

          (3) the aggregate net cash proceeds received by the Company from
     the issuance or sale of Capital Stock (excluding Redeemable Capital Stock)
     of the Company to any 

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<PAGE>
 
     Person (other than to a Subsidiary of the Company) after the Issue Date;

          (4) the aggregate net cash proceeds received by the Company from
     any Person (other than a Subsidiary of the Company) upon the exercise of
     any options, warrants or rights to purchase shares of Capital Stock (other
     than Redeemable Capital Stock) of the Company after the Issue Date;

          (5) the aggregate net cash proceeds received after the Issue Date
     by the Company from any Person (other than a Subsidiary of the Company) for
     debt securities that have been converted into or exchanged for Capital
     Stock of the Company (other than Redeemable Capital Stock) (to the extent
     such debt securities were originally sold for cash) plus the aggregate
     amount of cash received by the Company (other than from a Subsidiary of the
     Company) in connection with such conversion or exchange;

          (6) in the case of the disposition or repayment of any Investment
     constituting a Restricted Payment after the Issue Date, an amount equal to
     the lesser of the return of capital with respect to such Investment and the
     initial amount of such Investment, in either case, less the cost of the
     disposition of such Investment; and

          (7) so long as the Designation (as defined in Section 10.18)
     thereof was treated as a Restricted Payment made after the Issue Date, with
     respect to any Unrestricted Subsidiary that has been redesignated as a
     Restricted Subsidiary after the Issue Date in accordance with Section 10.18
     below, the Fair Market Value of the Company's interest in such Subsidiary
     (at the time of such redesignation); provided that such amount shall not in
     any case exceed the Designation Amount (as defined in Section 10.18) with
     respect to such Restricted Subsidiary upon its Designation, 

     minus:

     the Designation Amount (measured as of the date of Designation) with
     respect to any Restricted Subsidiary of the Company which has been
     designated as an Unrestricted Subsidiary after the Issue Date in accordance
     with Section 10.18 below.

          For purposes of the preceding clause (C)(4), the value of the
aggregate net proceeds received by the Company upon the issuance of Capital
Stock upon the exercise of options, warrants or rights will be the net cash
proceeds 

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<PAGE>
 
received upon the issuance of such options, warrants or rights plus the
incremental amount received by the Company upon the exercise thereof.

          None of the foregoing provisions shall prohibit, so long, in the case
of clauses (ii), (iii), (vi) and (vii) below, as there is no Default or Event of
Default continuing, (i) the payment of any dividend or distribution within 60
days after the date of its declaration, if at the date of declaration such
payment would be permitted by the first paragraph of this covenant; (ii) the
redemption, repurchase or other acquisition or retirement of any shares of any
class of Capital Stock of the Company in exchange for, or out of the net cash
proceeds of, a substantially concurrent issue and sale of other shares of
Capital Stock of the Company (other than Redeemable Capital Stock) to any Person
(other than to a Subsidiary of the Company); provided, however, that such net
cash proceeds are excluded from clause (C) of the first paragraph of this
covenant; (iii) any redemption, repurchase or other acquisition or retirement of
Subordinated Indebtedness in exchange for, or out of the net cash proceeds of, a
substantially concurrent issue and sale of (1) Capital Stock (other than
Redeemable Capital Stock) of the Company to any Person (other than to a
Subsidiary of the Company); provided, however, that any such net cash proceeds
are excluded from clause (C) of the first paragraph of this covenant; or (2)
Indebtedness of the Company so long as such Indebtedness is Subordinated
Indebtedness which (w) has no scheduled principal payment prior to the 91st day
after the Maturity Date, (x) has an Average Life to Stated Maturity greater than
the remaining Average Life to Stated Maturity of the Securities and (y) is
subordinated to the Securities in the same manner and to the same extent as the
Subordinated Indebtedness so purchased, exchanged, redeemed, acquired or
retired; (iv) Investments constituting Restricted Payments made as a result of
the receipt of non-cash consideration from any Asset Sale or other sale of
assets or property made pursuant to and in compliance with this Indenture; (v)
payments to purchase Capital Stock of the Company from management or employees
of the Company or any of its Subsidiaries, or their authorized representatives,
upon the death, disability or termination of employment of such employees, in
aggregate amounts under this clause (v) not to exceed $1,000,000 in any fiscal
year of the Company; (vi) the payment of any dividend or distribution by a
Restricted Subsidiary to the holders of its Capital Stock on a pro rata basis
and (vii) payments to purchase Capital Stock of the Company, in the aggregate
amount under this clause (vii) not to exceed $5,000,000 from the Issue Date.
Any payments made pursuant to clauses (i) or (v) of this paragraph shall be
taken into account in calculating the amount of Restricted Payments made from
and after the Issue Date.

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<PAGE>
 
SECTION 10.10.  Limitation on Issuance of Preferred Stock of Restricted
                Subsidiaries.

          The Company shall not permit any Restricted Subsidiary to issue any
Preferred Stock other than Preferred Stock issued to the Company or a Wholly-
Owned Restricted Subsidiary.  The Company shall not sell, transfer or otherwise
dispose of Preferred Stock issued by a Restricted Subsidiary of the Company or
permit a Restricted Subsidiary to sell, transfer or otherwise dispose of
Preferred Stock issued by a Restricted Subsidiary, other than to the Company or
a Wholly-Owned Restricted Subsidiary.  Notwithstanding the foregoing, nothing in
this covenant shall prohibit Preferred Stock (other than Redeemable Capital
Stock) issued by a Person prior to the time (A) such Person becomes a Restricted
Subsidiary of the Company, (B) such Person merges with or into a Restricted
Subsidiary of the Company or (C) a Restricted Subsidiary of the Company merges
with or into such Person; provided, that such Preferred Stock was not issued or
incurred by such Person in anticipation of a transaction contemplated by
subclause (A), (B), or (C) above.

SECTION 10.11.  Limitation on Transactions with Affiliates.

          The Company shall not, and shall not permit any of its Restricted
Subsidiaries to, directly or indirectly, enter into any transaction or series of
related transactions (including, without limitation, the sale, transfer,
disposition, purchase, exchange or lease of assets, property or services) with,
or for the benefit of, any of its Affiliates (other than Restricted
Subsidiaries), except (a) on terms that are no less favorable to the Company or
such Restricted Subsidiary, as the case may be, than those which could have been
obtained at the time in a comparable transaction or series of related
transactions from Persons who are not Affiliates of the Company, (b) with
respect to a transaction or series of related transactions involving aggregate
payments or value equal to or greater than $2,000,000 the Company shall have
delivered an Officer's Certificate to the Trustee certifying that such
transaction or transactions comply with the preceding clause (a), and (c) with
respect to a transaction or series of related transactions involving aggregate
payments or value equal to or greater than $5,000,000, such transaction or
transactions shall have been approved by a majority of the disinterested members
of the Board of Directors of the Company.

          Notwithstanding the foregoing, the restrictions set forth in this
covenant shall not apply to (i) transactions with or among the Company and the
Restricted Subsidiaries, (ii) customary 

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<PAGE>
 
directors' fees, indemnification and similar arrangements, consulting fees,
employee salaries, bonuses or employment agreements, compensation or employee
benefit arrangements and incentive arrangements with any officer, director or
employee of the Company or any Restricted Subsidiary entered into in the
ordinary course of business, (iii) any dividends made in compliance with Section
10.9, (iv) loans and advances to officers, directors and employees of the
Company or any Restricted Subsidiary made in the ordinary course of business,
(v) the incurrence of intercompany Indebtedness which constitutes Permitted
Indebtedness and (vi) transactions pursuant to agreements in effect on the Issue
Date.

SECTION 10.12.  Limitation on Liens.

          The Company shall not, and shall not permit any of its Restricted
Subsidiaries to, create, incur, assume or suffer to exist any Liens of any kind
securing Indebtedness upon any of its property or assets, or any proceeds
therefrom, unless the Securities are equally and ratably secured (except that
Liens securing Subordinated Indebtedness shall be expressly subordinate to Liens
securing the Securities to the same extent such Subordinated Indebtedness is
subordinate to the Securities), except for (a) Liens securing Senior
Indebtedness and Guarantor Senior Indebtedness; (b) Liens securing the
Securities; (c) Liens securing Indebtedness which is incurred to refinance
Indebtedness which has been secured by a Lien (other than a Lien in favor of the
Company or a Restricted Subsidiary) permitted under the Indenture and which has
been incurred in accordance with the provisions of this Indenture; provided,
however, that such Liens do not extend to or cover any property or assets of the
Company or any its Restricted Subsidiaries not securing the Indebtedness so
refinanced; and (d) Permitted Liens.

SECTION 10.13.  Change of Control.

          On or before the 30th day after the date of the occurrence of a Change
of Control (the "Change of Control Date"), the Company shall make an Offer to
Purchase (a "Change of Control Offer") on a Business Day not more than 60 nor
less than 30 days following the occurrence of the Change of Control, (the
"Change of Control Purchase Date") all of the then Outstanding Securities
tendered at a purchase price (the "Change of Control Purchase Price") equal to
101% of the principal amount thereof plus accrued and unpaid interest, if any,
thereon to the Change of Control Purchase Date.  The Company shall be required
to purchase all Securities tendered into the Change of Control Offer and not
withdrawn.

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<PAGE>
 
          On the Change of Control Purchase Date, the Company shall (i) accept
for payment Securities or portions thereof (not less than $1,000 principal
amount and integral multiples thereof) tendered pursuant to the Change of
Control Offer, (ii) deposit with the Paying Agent money, in immediately
available funds, sufficient to pay the purchase price of all Securities or
portions thereof so tendered and accepted and (iii) deliver to the Trustee the
Securities so accepted together with an Officer's Certificate setting forth the
Securities or portions thereof tendered to and accepted for payment by the
Company.  The Paying Agent shall promptly mail or deliver to the Holders of
Securities so accepted payment in an amount equal to the purchase price, and the
Trustee shall promptly authenticate and make available for delivery to such
Holders a new Security of like tenor equal in principal amount to any
unpurchased portion of the Security surrendered.  Any Securities not so accepted
shall be promptly mailed or delivered by the Company to the Holder thereof.  The
Company shall publicly announce the results of the Change of Control Offer not
later than the third Business Day following the Change of Control Purchase Date.

          The Company shall not be required to make a Change of Control offer
upon a Change of Control if a third party makes the Change of Control Offer in
the manner, at the times and otherwise in compliance with the requirements
applicable to a Change of Control Offer made by the Company and purchases all
Securities validly tendered and not withdrawn under such Change of Control
Offer.

          The Company shall comply with Rule 14e-1 under the Exchange Act and
any other securities laws and regulations thereunder, to the extent such laws or
regulations are applicable, in the event that a Change of Control occurs and the
Company is required to purchase Securities as described above.

SECTION 10.14.  Disposition of Proceeds of Asset Sales.

          The Company will not, and will not permit any of its Restricted
Subsidiaries to, make any Asset Sale unless (a) the Company or such Restricted
Subsidiary, as the case may be, receives consideration at the time of such Asset
Sale at least equal to the Fair Market Value of the shares or assets sold or
otherwise disposed of and (b) at least 75% of such consideration consists of
cash or Cash Equivalents or Replacement Assets; provided, however, that (i) the
amount of any Indebtedness (as shown on the most recent balance sheet of the
Company or such Restricted Subsidiary) of the Company or such Restricted
Subsidiary that is assumed by the transferee of such assets and (ii) any
securities, notes or other obligations received by the Company or such
Restricted Subsidiary from such 

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<PAGE>
 
transferee that are converted within 30 days into cash or Cash Equivalents (to
the extent of the cash or Cash Equivalents received) shall be deemed to be cash
for the purposes of this provision; and provided, further, that the 75%
limitation referred to in clause (b) shall not apply to any Asset Sale in which
the cash or Cash Equivalent portion of the consideration received therefrom
determined in accordance with the foregoing provision is equal to or greater
than what the after tax proceeds would have been had such Asset Sale complied
with the aforementioned 75% limitation. To the extent that the Net Cash
Proceeds, or portions thereof, of any Asset Sale are not required to be applied
to repay, and permanently reduce the commitments under Senior Indebtedness,
Guarantor Senior Indebtedness or Indebtedness of a Foreign Restricted Subsidiary
which is not a Guarantor, the Company or such Restricted Subsidiary, as the case
may be, may apply the Net Cash Proceeds, or portions thereof, from such Asset
Sale, within 360 days of such Asset Sale, to an investment in properties and
assets that replace the properties and assets that were the subject of such
Asset Sale or in properties and assets that (as determined in good faith by the
Board of Directors of the Company or the Restricted Subsidiary, as the case may
be) are used or useful in the business of the Company and its Restricted
Subsidiaries conducted at such time or in businesses reasonably related thereto
or in Capital Stock of a Person, the principal portion of whose assets consist
of such property or assets ("Replacement Assets"). Any Net Cash Proceeds or
portion thereof from any Asset Sale that are neither used to repay, and
permanently reduce the commitments under, Senior Indebtedness, Guarantor Senior
Indebtedness or Indebtedness of a Foreign Restricted Subsidiary which is not a
Guarantor, nor invested in Replacement Assets within such 360-day period
constitute "Excess Proceeds" subject to disposition as provided below.

          When the aggregate amount of Excess Proceeds equals or exceeds
$10,000,000, the Company shall make an offer to purchase (an "Asset Sale
Offer"), from all holders of the Securities, an aggregate principal amount of
Securities equal to such Excess Proceeds, at a price in cash equal to 100% of
the outstanding principal amount thereof plus accrued and unpaid interest, if
any, thereon to the Purchase Date (the "Asset Sale Offer Price").  To the extent
that the aggregate principal amount of Securities tendered pursuant to an Asset
Sale Offer is less than the Excess Proceeds, the Company may use such deficiency
for general corporate purposes.  The Securities shall be purchased by the
Company, at the option of the Holder thereof, in whole or in part in integral
multiples of $1,000, on a date that is not earlier than 30 days and not later
than 60 days from the date the notice is given to Holders, or such later date as
may be necessary for the Company to comply with the requirements under the
Exchange Act.  If Securities purchasable 

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<PAGE>
 
at an aggregate Purchase Price in excess of the Purchase Amount are tendered and
not withdrawn pursuant to the Asset Sale Offer to Purchase, the Company shall
purchase Securities on a pro rata basis, based on the Purchase Price therefor,
or such other method as the Trustee shall deem fair and appropriate (subject in
each case to applicable rules of the Depository and any securities exchange upon
which the Securities may then be listed), with such adjustments as may be deemed
appropriate so that only Securities in denominations of $1,000 principal face
amount or integral multiples thereof shall be purchased. Upon completion of such
Asset Sale Offer, the amount of Excess Proceeds shall be reset to zero.

          On the Asset Sale Offer Purchase Date, the Company shall (i) accept
for payment (subject to proration as described in the Offer to Purchase)
Securities or portions thereof tendered pursuant to the Asset Sale Offer, (ii)
deposit with the Paying Agent money, in immediately available funds, sufficient
to pay the purchase price of all Securities or portions thereof so tendered and
accepted and (iii) deliver to the Trustee the Securities so accepted together
with an Officer's Certificate setting forth the Securities or portions thereof
tendered to and accepted for payment by the Company.  The Paying Agent shall
promptly mail or deliver to the Holders of Securities so accepted payment in an
amount equal to the purchase price, and the Trustee shall promptly authenticate
and make available for delivery to such Holders a new Security of like tenor
equal in principal amount to any unpurchased portion of the Security
surrendered.  Any Securities not so accepted shall be promptly mailed or
delivered by the Company to the Holder thereof.  The Company shall publicly
announce the results of the Asset Sale Offer not later than the third Business
Day following the Asset Sale Offer Purchase Date.

          Whenever the aggregate amount of Excess Proceeds received by the
Company and its Restricted Subsidiaries exceeds $10,000,000, such Excess
Proceeds shall, prior to the purchase of Securities, be set aside by the Company
or such Restricted Subsidiary, as the case may be, in a separate account pending
(i) deposit with the Paying Agent of the amount required to purchase the
Securities tendered in an Asset Sale Offer or (ii) delivery by the Company of
the Asset Sale Offer Price to the Holders of the Securities validly tendered and
not withdrawn pursuant to an Asset Sale Offer.  Such Excess Proceeds may be
invested in Cash Equivalents, as directed by the Company, having a maturity date
which is not later than the earliest possible date for purchase of Securities
pursuant to the Asset Sale Offer.  The Company will be entitled to any interest
or dividends accrued, earned or paid on such Cash Equivalents.

                                       92
<PAGE>
 
          The Company shall comply with Rule 14e-1 under the Exchange Act and
any other securities laws and regulations thereunder, to the extent such laws
and regulations are applicable, in the event that an Asset Sale occurs and the
Company is required to purchase Securities as described above.

SECTION 10.15.  Limitation on Dividends and Other Payment Restrictions Affecting
                Restricted Subsidiaries.

          The Company shall not, and shall not permit any of its Restricted
Subsidiaries to, directly or indirectly, create or otherwise cause or suffer to
exist or become effective any consensual encumbrance or restriction on the
ability of any Restricted Subsidiary of the Company to (a) pay dividends, in
cash or otherwise, or make any other distributions on or in respect of its
Capital Stock or any other interest or participation in, or measured by, its
profits, (b) pay any Indebtedness owed to the Company or any other Restricted
Subsidiary of the Company, (c) make loans or advances to the Company or any
other Restricted Subsidiary of the Company, (d) transfer any of its properties
or assets to the Company or any other Restricted Subsidiary of the Company or
(e) guarantee any Indebtedness of the Company or any other Restricted Subsidiary
of the Company, except for such encumbrances or restrictions existing under or
by reason of (i) applicable law or any applicable rule, regulation or order,
(ii) customary non-assignment provisions of any contract or any lease governing
a leasehold interest of the Company or any Restricted Subsidiary of the Company,
(iii) customary restrictions on transfers of property subject to a Lien
permitted under this Indenture, (iv) the New Credit Agreement as in effect on
the Issue Date, (v) any agreement or other instrument of a Person acquired by
the Company or any Restricted Subsidiary of the Company in existence at the time
of such acquisition (but not created in contemplation thereof), which
encumbrance or restriction is not applicable to any Person, or the properties or
assets of any Person, other than the Person, or the property or assets of the
Person, so acquired, (vi) an agreement entered into for the sale or disposition
of Capital Stock or assets of a Restricted Subsidiary or an agreement entered
into for the sale of specified assets (in either case, so long as such
encumbrance or restriction, by its terms, terminates on the earlier of the
termination of such agreement or the consummation of such agreement and so long
as such restriction applies only to the Capital Stock or assets to be sold),
(vii) any agreement in effect on the Issue Date, (viii) this Indenture and the
Guarantees, and (ix) any agreement that amends, extends, refinances, renews or
replaces any agreement described in the foregoing clauses; provided that the
terms and conditions of any such agreement are not materially less favorable to
the Holders of the Securities with respect to such 

                                       93
<PAGE>
 
dividend and payment restrictions than those under or pursuant to the agreement
amended, extended, refinanced, renewed or replaced.

SECTION 10.16.  Limitation on Issuance of Subordinated Indebtedness.

          The Company shall not, and shall not permit any Guarantor to, directly
or indirectly, incur any Indebtedness (including Acquired Indebtedness) that is
subordinate in right of payment to any Indebtedness of the Company or such
Guarantor and senior in right of payment to the Securities or the Guarantee of
such Guarantor, as the case may be; provided, however, that the Company and the
Guarantors may incur such Acquired Indebtedness in an aggregate amount not to
exceed $25,000,000 at any one time outstanding.

SECTION 10.17.  Additional Subsidiary Guarantees.

          If the Company or any of its Restricted Subsidiaries acquires, creates
or designates another Restricted Subsidiary organized under the laws of the
United States, or any possession or territory thereof, any state of the United
States or the District of Columbia, then such newly acquired, created or
designated Restricted Subsidiary shall, within 30 days after the date of its
acquisition, creation or designation, whichever is later, (i) execute and
deliver to the Trustee a supplemental indenture in form reasonably satisfactory
to the Trustee pursuant to which such Subsidiary shall unconditionally guarantee
all of the Company's obligations under the Securities and this Indenture on the
terms set forth in this Indenture and (ii) deliver to the Trustee an opinion of
counsel that such supplemental indenture has been duly authorized, executed and
delivered by such Subsidiary and constitutes a legal, valid, binding and
enforceable obligation of such Subsidiary, subject to normal exceptions,
provided that if such Subsidiary (a) is not incorporated or organized in the
State of New York or the State of Delaware and (b) is not a Significant
Subsidiary of the Company, such opinion of counsel may assume due authorization,
execution and delivery of such supplemental indenture.  Thereafter, such
Subsidiary shall be a Guarantor for all purposes of this Indenture.  The Company
at its option may also cause any other Restricted Subsidiary of the Company to
so become a Guarantor.

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<PAGE>
 
SECTION 10.18.  Limitation on Designations of Unrestricted Subsidiaries.

          (a) The Company may designate after the Issue Date any Restricted
Subsidiary as an "Unrestricted Subsidiary" under this Indenture (a
"Designation") only if:

              (i)   no Default shall have occurred and be continuing at the time
     of or after giving effect to such Designation;

              (ii)  the Company would be permitted to make an Investment (other
     than a Permitted Investment, except a Permitted Investment covered by
     clause (x) of the definition thereof) at the time of Designation (assuming
     the effectiveness of such Designation) pursuant to the first paragraph of
     Section 10.9 in an amount (the "Designation Amount") equal to the Fair
     Market Value of the Company's interest in such Subsidiary on such date; and

              (iii) the Company would be permitted under this Indenture to incur
     $1.00 of additional Indebtedness (other than Permitted Indebtedness)
     pursuant to Section 10.8 at the time of such Designation (assuming the
     effectiveness of such Designation).

          In the event of any such Designation, the Company shall be deemed to
have made an Investment constituting a Restricted Payment pursuant to Section
10.9 for all purposes of this Indenture in the Designation Amount.

          The Company shall not, and shall not cause or permit any Restricted
Subsidiary to, at any time (x) provide credit support for or subject any of its
property or assets (other than the Capital Stock of any Unrestricted Subsidiary)
to the satisfaction of, any Indebtedness of any Unrestricted Subsidiary
(including any undertaking, agreement or instrument evidencing such
Indebtedness), (y) be directly or indirectly liable for any Indebtedness of any
Unrestricted Subsidiary or (z) be directly or indirectly liable for any
Indebtedness which provides that the holder thereof may (upon notice, lapse of
time or both) declare a default thereon or cause the payment thereof to be
accelerated or payable prior to its final scheduled maturity upon the occurrence
of a default with respect to any Indebtedness of any Unrestricted Subsidiary
(including any right to take enforcement action against such Unrestricted
Subsidiary), except any non-recourse guarantee given solely to support the
pledge by the Company or any Restricted Subsidiary of the Capital Stock of an
Unrestricted Subsidiary.  All Subsidiaries of Unrestricted Subsidiaries shall
automatically be deemed to be Unrestricted Subsidiaries.

                                       95
<PAGE>
 
          (b) The Company may revoke any Designation of a Subsidiary as an
Unrestricted Subsidiary (a "Revocation") if:

              (i)   no Default shall have occurred and be continuing at the time
     of and after giving effect to such Revocation, and

              (ii)  all Liens and Indebtedness of such Unrestricted Subsidiary
     outstanding immediately following such Revocation would, if incurred at
     such time, have been permitted to be incurred for all purposes of this
     Indenture.

          (c) All Designations and Revocations must be evidenced by Officer's
Certificates of the Company delivered to the Trustee certifying compliance with
the foregoing provisions.

SECTION 10.19.  Provision of Financial Information.

          For so long as the Securities are outstanding, whether or not the
Company is subject to Section 13(a) or 15(d) of the Exchange Act, or any
successor provision thereto, the Company shall file with the Commission (if
permitted by Commission practice and applicable law and regulations) the annual
reports, quarterly reports and other documents which the Company would have been
required to file with the Commission pursuant to such Section 13(a) or 15(d) or
any successor provision thereto if the Company were so subject, such documents
to be filed with the Commission on or prior to the respective dates (the
"Required Filing Dates") by which the Company would have been required so to
file such documents if the Company were so subject.  The Company shall also in
any event (a) within 15 days after each Required Filing Date (whether or not
permitted or required to be filed with the Commission) (i) transmit (or cause to
be transmitted) by mail to all Holders of Securities, as their names and
addresses appear in the Securities register, without cost to such Holders, and
(ii) file with the Trustee, copies of the annual reports, quarterly reports and
other documents which the Company would be required to file with the Commission
if the Securities were then registered under the Exchange Act.  In addition, for
so long as any Securities remain outstanding, the Company will furnish to the
Holders of Securities and to securities analysts and prospective investors, upon
their request, the information required to be delivered pursuant to Rule
144A(d)(4) under the Securities Act, and, to any beneficial holder of
Securities, if not obtainable from the Commission, information of the type that
would be filed with the Commission pursuant to the foregoing provisions upon the
request of any such Holder.

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<PAGE>
 
SECTION 10.20.  Statement by Officers as to Default; Compliance Certificates.

          (a) The Company shall deliver to the Trustee, prior to March 31 in
each year commencing March 31, 1999, an Officer's Certificate, stating whether
or not to the best knowledge of the signers thereof the Company is in default in
the performance and observance of any of the terms, provisions and conditions of
this Indenture (without regard to any period of grace or requirement of notice
provided hereunder), and if the Company shall be in default, specifying all such
defaults and the nature and status thereof of which he may have knowledge.

          (b) The Company shall deliver to the Trustee, as soon as possible and
in any event within five business days after the Company becomes aware of the
occurrence of a Default or an Event of Default, an Officer's Certificate setting
forth the details of such Default or Event of Default, and the action which the
Company proposes to take with respect thereto.


                                  ARTICLE XI

                           Redemption of Securities

SECTION 11.1.  Right of Redemption.

          The Securities may be redeemed at the election of the Company, in the
amounts, at the times, at the Redemption Prices (together with any applicable
accrued and unpaid interest to the Redemption Date), and subject to the
conditions specified in the form of Security and hereinafter set forth.

SECTION 11.2.  Applicability of Article.

          Redemption of Securities at the election of the Company, as permitted
by this Indenture and the provisions of the Securities, shall be made in
accordance with such provisions and this Article.

SECTION 11.3.  Election to Redeem; Notice to Trustee.

          The election of the Company to redeem any Securities pursuant to
Section 11.1 shall be evidenced by a Board Resolution.  In the event of any
redemption at the election of the Company pursuant to Section 11.1, the Company
shall notify the Trustee, in case of a redemption of less than all the
Securities, at least 60 days, and in the case of a redemption of all the
Securities, at least 40 days, prior to the Redemption Date 

                                       97
<PAGE>
 
fixed by the Company (in each case, unless a shorter notice shall be
satisfactory to the Trustee) of such Redemption Date and of the principal amount
of Securities to be redeemed.

SECTION 11.4.  Selection by Trustee of Securities To Be Redeemed.

          In the event that less than all of the Securities are to be redeemed
at any time, selection of such Securities for redemption will be made by the
Trustee in compliance with the requirements of the principal national securities
exchange, if any, on which the Securities are listed or, if the Securities are
not then listed on a national securities exchange, on a pro rata basis, by lot
or by such method as the Trustee shall deem fair and appropriate (subject to the
rules of the Depository); provided, however, that Securities shall only be
redeemable in amounts of $1,000 or an integral multiple of $1,000.

          The Trustee shall promptly notify the Company and each Security
Registrar in writing of the Securities selected for redemption and, in the case
of any Securities selected for partial redemption, the principal amount thereof
to be redeemed.

          For all purposes of this Indenture and of the Securities, unless the
context otherwise requires, all provisions relating to the redemption of
Securities shall relate, in the case of any Securities redeemed or to be
redeemed only in part, to the portion of the principal amount of such Securities
which has been or is to be redeemed.

SECTION 11.5.  Notice of Redemption.

          Notice of redemption shall be given by first class mail, postage
prepaid, mailed not less than 30 nor more than 60 days prior to the Redemption
Date, to each Holder of Securities to be redeemed, at his address appearing in
the Security Register.

          All notices of redemption shall identify the Securities to be redeemed
(including, if used, CUSIP or CINS numbers) and shall state:

              (i)   the Redemption Date,

              (ii)  the Redemption Price,

              (iii) if less than all the Outstanding Securities are to be
     redeemed, the identification (and, in the case of partial redemption, the
     principal amounts) of the particular Securities to be redeemed,

                                       98
<PAGE>
 
              (iv)  that on the Redemption Date the Redemption Price will become
     due and payable upon each such Security to be redeemed and that interest
     thereon will cease to accrue on and after such Redemption Date,

              (v)   the place or places where such Securities are to be
     surrendered for payment of the Redemption Price, and

              (vi)  if the redemption is being made pursuant to the provisions
     of the Securities regarding a Public Equity Offering, a brief description
     of the transaction or transactions giving rise to such redemption, the
     nature and amount of Qualified Equity Interests sold by the Company thereto
     in such transaction or transactions, the aggregate purchase price thereof
     and the net cash proceeds therefrom available for such redemption, the date
     or dates on which such transaction or transactions were completed and the
     percentage of the aggregate principal amount of Outstanding Securities
     being redeemed.

          Notice of redemption of Securities to be redeemed at the election of
the Company shall be given by the Company or, at the Company's request, by the
Trustee in the name and at the expense of the Company and shall be irrevocable.

SECTION 11.6.  Deposit of Redemption Price.

          Prior to any Redemption Date, the Company shall deposit with the
Trustee or with a Paying Agent (or, if the Company is acting as its own Paying
Agent, segregate and hold in trust as provided in Section 10.3) an amount of
money sufficient to pay the Redemption Price of, and (except if the Redemption
Date shall be an Interest Payment Date) any applicable accrued interest on, all
the Securities which are to be redeemed on that date.

SECTION 11.7.  Securities Payable on Redemption Date.

          Notice of redemption having been given as aforesaid, the Securities so
to be redeemed shall, on the Redemption Date, become due and payable at the
Redemption Price therein specified, and from and after such date (unless the
Company shall default in the payment of the Redemption Price and any applicable
accrued interest) such Securities shall not bear interest.  Upon surrender of
any such Security for redemption in accordance with said notice, such Security
shall be paid by the Company at the Redemption Price, together with any
applicable accrued and unpaid interest to the Redemption Date; provided,
however, that installments of interest whose Stated Maturity is on or prior to
the Redemption Date shall be payable to the 

                                       99
<PAGE>
 
Holders of such Securities, or one or more predecessor securities, registered as
such at the close of business on the relevant record dates according to their
terms and the provisions of Section 3.7.

          If any Security called for redemption in accordance with the election
of the Company made pursuant to Section 11.1 shall not be so paid upon surrender
thereof for redemption, the principal (and premium, if any) shall, until paid,
bear interest from the Redemption Date at the rate provided by the Security.

SECTION 11.8.  Securities Redeemed in Part.

          Any Security which is to be redeemed only in part shall be surrendered
at an office or agency of the Company designated for that purpose pursuant to
Section 10.2 (with, if the Company or the Trustee so requires, due endorsement
by, or a written instrument of transfer in form satisfactory to the Company and
the Trustee duly executed by, the Holder thereof or his attorney duly authorized
in writing), and the Company shall execute, and the Trustee shall authenticate
and deliver to the Holder of such Security without service charge, a new
Security or Securities, of any authorized denomination as requested by such
Holder, in aggregate principal amount at Stated Maturity equal to and in
exchange for the unredeemed portion of the principal amount at Stated Maturity
of the Security so surrendered.


                                  ARTICLE XII

                      Defeasance and Covenant Defeasance

SECTION 12.1.  Company's Option To Effect Defeasance or Covenant Defeasance.

          The Company may elect, at its option at any time, to have Section 12.2
or Section 12.3 applied to the Outstanding Securities (as a whole and not in
part) upon compliance with the conditions set forth below in this Article.  Any
such election shall be evidenced by a Board Resolution.

SECTION 12.2.  Defeasance and Discharge.

          Upon the Company's exercise of its option to have this Section applied
to the Outstanding Securities (as a whole and not in part), the Company shall be
deemed to have been discharged from its obligations with respect to such
Securities as provided in this Section on and after the date the conditions 

                                      100
<PAGE>
 
set forth in Section 12.4 are satisfied (hereinafter called "Defeasance"). For
this purpose, such Defeasance means that the Company shall be deemed to have
paid and discharged the entire Indebtedness represented by such Securities and
to have satisfied all its other obligations under such Securities and this
Indenture insofar as such Securities are concerned (and the Trustee, at the
expense of the Company, shall execute proper instruments acknowledging the
same), subject to the following which shall survive until otherwise terminated
or discharged hereunder: (1) the rights of Holders of Outstanding Securities to
receive, solely from the trust fund described in Section 12.4 and as more fully
set forth in such Section, payments in respect of the principal of, premium, if
any, and interest on such Securities when payments are due, (2) the Company's
obligations with respect to such Securities under Sections 3.4, 3.5, 3.6, 10.2
and 10.3, (3) the rights, powers, trusts, duties and immunities of the Trustee
hereunder and (4) this Article. Subject to compliance with this Article, the
Company may exercise its option to have this Section applied to the Outstanding
Securities (as a whole and not in part) notwithstanding the prior exercise of
its option to have Section 12.3 applied to such Securities.

SECTION 12.3.  Covenant Defeasance.

          Upon the Company's exercise of its option to have this Section applied
to the Outstanding Securities (as a whole and not in part), (i) the Company
shall be released from its obligations under Section 8.1(3), Sections 10.5
through 10.19, inclusive, and any covenant provided pursuant to Section 9.1(2)
and the Guarantors shall be released from their obligations under Article XIII
and the Guarantees, (ii) the occurrence of any event specified in Sections
5.1(3) and 5.1(4) (with respect to Section 8.1(3) and any of Sections 10.5
through 10.19, inclusive, and any such covenants provided pursuant to Section
9.1(2)), shall be deemed not to be or result in an Event of Default, in each
case with respect to such Securities as provided in this Section on and after
the date the conditions set forth in Section 12.4 are satisfied (hereinafter
called "Covenant Defeasance").  For this purpose, such Covenant Defeasance means
that, with respect to such Securities, the Company may omit to comply with and
shall have no liability in respect of any term, condition or limitation set
forth in any such specified Section (to the extent so specified in the case of
Section 5.1(3) or 5.1(4)), whether directly or indirectly, by reason of any
reference elsewhere herein to any such Section or by reason of any reference in
any such Section to any other provision herein or in any other document, but the
remainder of this Indenture and such Securities shall be unaffected thereby.

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<PAGE>
 
SECTION 12.4.  Conditions to Defeasance or Covenant Defeasance.

          The following shall be the conditions to the application of Section
12.2 or Section 12.3 to the Outstanding Securities:

          (1) The Company shall irrevocably have deposited or caused to be
     deposited with the Trustee (or another trustee which satisfies the
     requirements contemplated by Section 6.9 and agrees to comply with the
     provisions of this Article applicable to it) as trust funds in trust for
     the purpose of making the following payments, specifically pledged as
     security for, and dedicated solely to, the benefits of the Holders of such
     Securities, (A) money in an amount, or (B) U.S. Government Obligations
     which through the scheduled payment of principal and interest in respect
     thereof in accordance with their terms will provide, not later than one day
     before the due date of any payment, money in an amount, or (C) a
     combination thereof, in each case sufficient, in the opinion of a
     nationally recognized firm of independent public accountants expressed in a
     written certification thereof delivered to the Trustee, to pay and
     discharge, and which shall be applied by the Trustee (or any such other
     qualifying trustee) to pay and discharge, the principal of, premium, if
     any, and any installment of interest on such Securities on the respective
     Stated Maturities thereof, in accordance with the terms of this Indenture
     and such Securities.  As used herein, "U.S. Government obligation" means
     (x) any security which is (i) a direct Obligation of the United States of
     America for the payment of which the full faith and credit of the United
     States of America is pledged or (ii) an obligation of a Person controlled
     or supervised by and acting as an agency or instrumentality of the United
     States of America the payment of which is unconditionally guaranteed as a
     full faith and credit obligation by the United States of America, which, in
     either case (i) or (ii), is not callable or redeemable at the option of the
     issuer thereof, and (y) any depositary receipt issued by a bank (as defined
     in Section 3(a)(2) of the Securities Act) as custodian with respect to any
     U.S. Government Obligation which is specified in clause (x) above and held
     by such bank for the account of the holder of such depositary receipt, or
     with respect to any specific payment of principal of or interest on any
     U.S. Government Obligation which is so specified and held, provided U
     (except as required by law) such custodian is not authorized to make any
     deduction from the amount payable to the holder of such depositary receipt
     from any amount received by the custodian in respect of the U.S. Government
     Obligation or 

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<PAGE>
 
     the specific payment of principal or interest evidenced by such depositary
     receipt.

          (2) In the event of an election to have Section 12.2 apply to the
     Outstanding Securities, the Company shall have delivered to the Trustee an
     Opinion of Counsel stating that (A) the Company has received from, or there
     has been published by, the Internal Revenue Service a ruling or (B) since
     the date of this instrument, there has been a change in the applicable
     Federal income tax law, in either case to the effect that, and based
     thereon such opinion shall confirm that, the Holders of such Securities
     will not recognize gain or loss for Federal income tax purposes as a result
     of the deposit, Defeasance and discharge to be effected with respect to
     such Securities and will be subject to Federal income tax on the same
     amount, in the same manner and at the same times as would be the case if
     such deposit, Defeasance and discharge were not to occur.

          (3) In the event of an election to have Section 12.3 apply to the
     Outstanding Securities, the Company shall have delivered to the Trustee an
     Opinion of Counsel to the effect that the Holders of such Securities will
     not recognize gain or loss for Federal income tax purposes as a result of
     the deposit and Covenant Defeasance to be effected with respect to such
     Securities and will be subject to Federal income tax on the same amount, in
     the same manner and at the same times as would be the case if such deposit
     and Covenant Defeasance were not to occur.

          (4) No Default or Event of Default with respect to the Outstanding
     Securities shall have occurred and be continuing at the time of such
     deposit (excluding a Default or Event of Default due to a breach of Section
     10.8 which arises solely due to the borrowing of funds entirely and
     immediately applied to such deposit).

          (5) Such Defeasance or Covenant Defeasance shall not cause the
     Trustee to have a conflicting interest with respect to any securities of
     the Company or any Guarantor.

          (6) Such Defeasance or Covenant Defeasance shall not result in a
     breach or violation of, or constitute a default under, any other agreement
     or instrument to which the Company or any Subsidiary is a party or by which
     it is bound.

          (7) The Company shall have delivered to the Trustee an Opinion of
     Counsel (which opinion may be subject to customary assumptions and
     exceptions) to the effect that after the 91st day following the deposit,
     the trust funds 

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     will not be subject to the effect of any applicable bankruptcy, insolvency,
     reorganization or similar laws affecting creditors' rights generally.

          (8)  The Company shall have delivered to the Trustee an Officer's
     Certificate stating that the deposit was not made by the Company with the
     intent of preferring the Holders of the Securities over the other creditors
     of the Company or any Guarantor with the intent of defeating, hindering,
     delaying or defrauding creditors of the Company or any Guarantor or others.

          (9)  No event or condition shall exist that would prevent the
     Company from making payments of the principal of, premium, if any, and
     interest on the Securities on the date of such deposit or at any time
     ending on the 91st day after the date of such deposit.

          (10) The Company shall have delivered to the Trustee an Officer's
     Certificate and an Opinion of Counsel, each stating that all conditions
     precedent under this Indenture to either Defeasance or Covenant Defeasance,
     as the case may be, have been complied with.

SECTION 12.5.  Deposited Money and U.S. Government Obligations To Be Held in
               Trust; Miscellaneous Provisions.

          Subject to the provisions of the last paragraph of Section 10.3, all
money and U.S. Government Obligations (including the proceeds thereof) deposited
with the Trustee or other qualifying trustee (solely for purposes of this
Section and Section 12.6, the Trustee and any such other trustee are referred to
collectively as the "Trustee") pursuant to Section 12.4 in respect of the
Outstanding Securities shall be held in trust and applied by the Trustee, in
accordance with the provisions of such Securities and this Indenture, to the
payment, either directly or through any such Paying Agent (including the Company
acting as its own Paying Agent) as the Trustee may determine, to the Holders of
such Securities, of all sums due and to become due thereon in respect of
principal and any premium and interest, but money so held in trust need not be
segregated from other funds except to the extent required by law.

           The Company shall pay and indemnify the Trustee against any tax, fee
or other charge imposed on or assessed against the U.S. Government Obligations
deposited pursuant to Section 12.4 or the principal and interest received in
respect thereof other than any such tax, fee or other charge which by 

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<PAGE>
 
law is for the account of the Holders of Outstanding Securities.

          Anything in this Article to the contrary notwithstanding, the Trustee
shall deliver or pay to the Company from time to time upon Company Request any
money or U.S. Government Obligations held by it as provided in Section 12.4
which, in the opinion of a nationally recognized firm of independent public
accountants expressed in a written certification thereof delivered to the
Trustee, are in excess of the amount thereof which would then be required to be
deposited to effect the Defeasance or Covenant Defeasance, as the case may be,
with respect to the Outstanding Securities.

SECTION 12.6.  Reinstatement.

          If the Trustee or the Paying Agent is unable to apply any money in
accordance with this Article with respect to any Securities by reason of any
order or judgment of any court or governmental authority enjoining, restraining,
or otherwise prohibiting such application, then the obligations under this
Indenture, such Securities and the Guarantees from which the Company and the
Guarantors have been discharged or released pursuant to Section 12.2 or 12.3
shall be revived and reinstated as though no deposit had occurred pursuant to
this Article with respect to such Securities, until such time as the Trustee or
Paying Agent is permitted to apply all money held in trust pursuant to Section
12.5 with respect to such Securities in accordance with this Article; provided,
however, that if the Company makes any payment of principal of or any premium or
interest on any such Security following such reinstatement of its obligations,
the Company shall be subrogated to the rights (if any) of the Holders of such
Securities to receive such payment from the money so held in trust.


                                 ARTICLE XIII

                                   Guaranty

SECTION 13.1.  Guaranty.

          Each Guarantor hereby unconditionally and irrevocably guarantees on a
senior subordinated basis, jointly and severally, to each Holder and to the
Trustee and its successors and assigns (a) the full and prompt payment (within
applicable grace periods) of principal of and interest on the Securities when
due, whether at maturity, by acceleration, by redemption or otherwise, and all
other monetary obligations of the Company under this Indenture and the
Securities and (b) the full and 

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<PAGE>
 
prompt performance within applicable grace periods of all other obligations of
the Company under this Indenture and the Securities (all the foregoing being
hereinafter collectively called the "Guaranty Obligations"). Each Guarantor
further agrees that the Guaranty Obligations may be extended or renewed, in
whole or in part, without notice or further assent from such Guarantor, and that
such Guarantor will remain bound under this Article XIII notwithstanding any
extension or renewal of any Guaranty Obligation.

          To the extent that any Guarantor shall be required to pay any amounts
on account of the Securities pursuant to a Guaranty in excess of an amount
calculated as the product of (i) the aggregate amount payable by the Guarantors
on account of the Securities pursuant to the Guarantees times (ii) the
proportion (expressed as a fraction) that such Guarantor's net assets
(determined in accordance with GAAP) at the date enforcement of the Guarantees
is sought bears to the aggregate net assets (determined in accordance with GAAP)
of all Guarantors at such date, then such Guarantor shall be reimbursed by the
other Guarantors for the amount of such excess, pro rata, based upon the
respective net assets (determined in accordance with GAAP) of such other
Guarantors at the date enforcement of the Guarantees is sought.  This paragraph
is intended only to define the relative rights of Guarantors as among
themselves, and nothing set forth in this paragraph is intended to or shall
impair the joint and several obligations of the Guarantors under their
respective Guarantees.

          The Guarantors shall have the right to seek contribution from any non-
paying Guarantor so long as the exercise of such right does not impair the
rights of the Holders under any Guaranty.

          Each Guarantor waives presentation to, demand of payment from and
protest to the Company of any of the Guaranty Obligations and also waives notice
of protest for nonpayment.  Each Guarantor waives notice of any default under
the Securities or the Guaranty Obligations.  The obligations of each Guarantor
hereunder shall not be affected by (a) the failure of any Holder or the Trustee
to assert any claim or demand or to enforce any right or remedy against the
Company or any other Person under this Indenture, the Securities or any other
agreement or otherwise; (b) any extension or renewal of any thereof; (c) any
rescission, waiver, amendment or modification of any of the terms or provisions
of this Indenture, the Securities or any other agreement; (d) the release of any
security held by any Holder or the Trustee for the Guaranty Obligations or any
of them; (e) the failure of any Holder or Trustee to exercise any right or
remedy against any other guarantor of the Guaranty 

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<PAGE>
 
Obligations; or (f) any change in the ownership of any Guarantor (subject to
Section 13.5(b)).

          Each Guarantor further agrees that its Guaranty herein constitutes a
guaranty of payment, performance and compliance when due (and not a guaranty of
collection) and waives any right to require that any resort be had by any Holder
or the Trustee to any security held for payment of the Guaranty Obligations.

          To the fullest extent permitted by law, the obligations of each
Guarantor hereunder shall not be subject to any reduction, limitation,
impairment or termination for any reason, including any claim of waiver,
release, surrender, alteration or compromise, and shall not be subject to any
defense of setoff, counterclaim, recoupment or termination whatsoever or by
reason of the invalidity, illegality or unenforceability of the Guaranty
Obligations or otherwise.  Without limiting the generality of the foregoing, to
the fullest extent permitted by law, the obligations of each Guarantor herein
shall not be discharged or impaired or otherwise affected by the failure of any
Holder or the Trustee to assert any claim or demand or to enforce any remedy
under this Indenture, the Securities or any other agreement, by any waiver or
modification of any thereof, by any default, failure or delay, willful or
otherwise, in the performance of the Guaranty Obligations, or by any other act
or thing or omission or delay to do any other act or thing which may or might in
any manner or to any extent vary the risk of such Guarantor or would otherwise
operate as a discharge of each Guarantor as a matter of law or equity.

          Each Guarantor further agrees that its Guaranty herein shall continue
to be effective or be reinstated, as the case may be, if at any time payment, or
any part thereof, of principal of or interest on any Guaranty Obligation is
rescinded or must otherwise be restored by any Holder or the Trustee upon the
bankruptcy or reorganization of the Company or otherwise.

          In furtherance of the foregoing and not in limitation of any other
right which any Holder or the Trustee has at law or in equity against each
Guarantor by virtue hereof, upon the failure of the Company to pay the principal
of or interest on any Guaranty Obligation when and as the same shall become due,
whether at maturity, by acceleration, by redemption or otherwise (within
applicable grace periods), or to perform or comply with any other Guaranty
Obligation (within applicable grace periods), each Guarantor hereby promises to
and shall, upon receipt of written demand by the Trustee, forthwith pay, or
cause to be paid, in cash, to the Holders or the Trustee an amount equal to the
sum of (i) the unpaid principal amount of such 

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<PAGE>
 
Guaranty Obligations (ii) accrued and unpaid interest on such Guaranty
Obligations (but only to the extent not prohibited by law) and (iii) all other
monetary Guaranty Obligations of the Company to the Holders and the Trustee.

          Each Guarantor agrees that it shall not be entitled to any right of
subrogation in relation to the Holders in respect of any Guaranty Obligations
guarantied hereby until payment in full of all Guaranty Obligations.  Each
Guarantor further agrees that, as between the Guarantors, on the one hand, and
the Holders and the Trustee, on the other hand, (x) the maturity of the Guaranty
Obligations guarantied hereby may be accelerated as provided in Article V for
the purposes of its Guaranty herein, notwithstanding any stay, injunction or
other prohibition preventing such acceleration in respect of the Guaranty
Obligations guaranteed hereby, and (y) in the event of any declaration of
acceleration of such Guaranty Obligations as provided in Article V, such
Guaranty Obligations (whether or not due and payable) shall forthwith become due
and payable by each Guarantor for the purposes of this Section.

          Each Guarantor also agrees to pay any and all costs and expenses
(including reasonable attorneys' fees and expenses) incurred by the Trustee or
any Holder in enforcing any rights under this Section.

SECTION 13.2.  Limitation on Liability.

          Any term or provision of this Indenture to the contrary
notwithstanding, the maximum aggregate amount of the obligations guaranteed
hereunder by each Guarantor shall not exceed the maximum amount that can be
hereby guaranteed without rendering this Indenture, as it relates to such
Guarantor, voidable under applicable federal or state law relating to fraudulent
conveyance or fraudulent transfer.

SECTION 13.3.  Execution and Delivery of Guarantees.

          The Guarantees to be endorsed on the Securities shall be in the form
set forth in Exhibit D.  Each of the Guarantors hereby agrees to execute its
Guaranty in such form, to be endorsed on each Security authenticated and
delivered by the Trustee.

          Each Guaranty shall be executed on behalf of each respective Guarantor
by any one of such Guarantor's Chairman of the Board, Vice Chairman of the
Board, President, Chief Financial Officer, or Vice Presidents.  The signature of
any or all of these officers on the Guaranty may be manual or facsimile.

                                      108
<PAGE>
 
          A Guaranty bearing the manual or facsimile signatures of individuals
who were at any time the proper officers of a Guarantor shall bind such
Guarantor, notwithstanding that such individuals or any of them have ceased to
hold such offices prior to the authentication and delivery of the Security on
which such Guaranty is endorsed or did not hold such offices at the date of such
Guaranty.

          Each Guaranty shall be registered, transferred, exchanged and
cancelled, and shall be held in definitive or global form, in the same manner
and together with, the Security to which it relates, in accordance with Article
III.

          The delivery of any Security by the Trustee, after the authentication
thereof hereunder, shall constitute due delivery of the Guaranty endorsed
thereon on behalf of the Guarantors.  Each of the Guarantors hereby jointly and
severally agrees that its Guaranty set forth in Section 13.1 shall remain in
full force and effect notwithstanding any failure to endorse a Guaranty on any
Security.

SECTION 13.4.  Guarantors May Consolidate, Etc., on Certain Terms.

          Except as may be provided in Section 13.5 and in Articles VIII and X,
nothing contained in this Indenture or in any of the Securities shall prevent
any consolidation or merger of a Guarantor with or into the Company or a
Guarantor or shall prevent any sale or conveyance of the assets of a Guarantor
as an entirety or substantially as an entirety or the Capital Stock of a
Guarantor to the Company or a Guarantor.

SECTION 13.5.  Release of Guarantors.

          (a) Concurrently with any consolidation or merger of a Guarantor or
any sale or conveyance of the assets of a Guarantor as an entirety or
substantially as an entirety, in each case as permitted by Section 13.4 hereof
in accordance with the other provisions of this Indenture (including, without
limitation, Sections 10.9, 10.11 and 10.14) and as a result of which such
Guarantor ceases to be a Subsidiary of the Company, upon delivery by the Company
to the Trustee of an Officer's Certificate to the effect that such
consolidation, merger, sale or conveyance was made in accordance with Section
13.4 and the other provisions hereof and an Opinion of Counsel to the effect
that such transaction is permitted by this Indenture (which opinion may be
subject to customary assumptions and limitations), the Trustee shall execute any
documents reasonably required in order to evidence the release of such Guarantor
from its obligations under its Guaranty endorsed on the Securities and under
this Article XIII.  Any Guarantor not released from 

                                      109
<PAGE>
 
its obligations under its Guaranty endorsed on the Securities and under this
Article XIII shall remain liable for the full amount of principal of and
premium, if any, and interest on the Securities and for the other obligations of
a Guarantor under its Guaranty endorsed on the Securities and under this 
Article XIII.

          (b) Except as provided by clause (a) hereof, upon the consummation of
any transaction (whether involving a sale or other disposition of securities, a
merger, or otherwise, including any Asset Sale) whereby any Guarantor ceases to
be a Subsidiary and which transaction is otherwise in compliance with the
provisions of this Indenture, such Guarantor shall automatically be released
from all obligations under its Guaranty endorsed on the Securities and under
this Article XIII without need for any further act or the execution or delivery
of any document.

SECTION 13.6.  Successors and Assigns.

          This Article XIII shall be binding upon each Guarantor and its
successors and assigns and shall inure to the benefit of the successors and
assigns of the Trustee and the Holders and, in the event of any transfer or
assignment of rights by any Holder or the Trustee, the rights and privileges
conferred upon that party in this Indenture and in the Securities shall
automatically extend to and be vested in such transferee or assignee, all
subject to the terms and conditions of this Indenture.

SECTION 13.7.  No Waiver, etc.

          Neither a failure nor a delay on the part of either the Trustee or the
Holders in exercising any right, power or privilege under this Article XIII
shall operate as a waiver thereof, nor shall a single or partial exercise
thereof preclude any other or further exercise of any right, power or privilege.
The rights, remedies and benefits of the Trustee and the Holders herein
expressly specified are cumulative and not exclusive of any other rights,
remedies or benefits which either may have under this Article XIII at law, in
equity, by statute or otherwise.

SECTION 13.8.  Modification, etc.

          No modification, amendment or waiver of any provision of this Article,
nor the consent to any departure by a Guarantor therefrom, shall in any event be
effective unless the same shall be in writing and signed by the Trustee, and
then such waiver or consent shall be effective only in the specific instance and
for the purpose for which given.  No notice to or 

                                      110
<PAGE>
 
demand on a Guarantor in any case shall entitle such Guarantor or any other
guarantor to any other or further notice or demand in the same, similar or other
circumstances.

SECTION 13.9.  Subordination of Guarantees.

          The obligations of each Guarantor pursuant to its Guaranty and this
Article XIII shall be (a) junior and subordinated in right of payment to the
prior payment in full in cash of all Guarantor Senior Indebtedness of such
Guarantor and (b) senior in right of payment to all existing and future
Guarantor Subordinated Indebtedness of such Guarantor, in each case on the same
basis as the Securities and the obligations of the Company hereunder are junior
and subordinated to all Senior Indebtedness and senior in right of payment to
all Subordinated Indebtedness.  For the purposes of this Section 13.9, Article
XIV shall apply to the obligations of each Guarantor under its Guaranty, this
Article XIII and the other provisions of this Indenture as if references therein
to the Company, the Securities, Senior Indebtedness, Subordinated Indebtedness
and Designated Senior Indebtedness were references to such Guarantor, such
Guarantor's Guaranty, Guarantor Senior Indebtedness, Guarantor Subordinated
Indebtedness and Designated Guarantor Senior Indebtedness, respectively.


                                  ARTICLE XIV

                                 Subordination

SECTION 14.1.  Securities Subordinate to Senior Indebtedness and Senior to
               Subordinated Indebtedness.

          The Company covenants and agrees, and each Holder of a Security, by
his acceptance thereof, likewise covenants and agrees that, to the extent and in
the manner hereinafter set forth in this Article XIV, the Indebtedness evidenced
by the Securities is hereby expressly made subordinate in right of payment to
the prior payment in full in cash of all Senior Indebtedness and senior in right
of payment to all existing and future Subordinated Indebtedness of the Company.

SECTION 14.2.  Payment Over of Proceeds Upon Dissolution, Etc.

          In the event of any insolvency or bankruptcy case or proceeding, or
any receivership, liquidation, reorganization or other similar case or
proceeding in connection therewith, relating to the Company or its assets, or
any liquidation, dissolution 

                                      111
<PAGE>
 
or other winding-up of the Company, whether voluntary or involuntary, or any
assignment for the benefit of creditors or other marshalling of assets or
liabilities of the Company, all Senior Indebtedness (including, in the case of
Designated Senior Indebtedness, any interest accruing subsequent to the filing
of a petition for bankruptcy (regardless of whether such interest is an allowed
claim in the bankruptcy proceeding)) must be paid in full in cash before any
payment (other than payments in the form of Qualified Equity Interests or other
securities the payment of which is subordinated, at least to the same extent as
the Securities, to the payment of all Senior Indebtedness which may at the time
be outstanding and other than payments from a trust created pursuant to Article
XII) is made on account of the principal of, premium, if any, or interest on the
Securities.

SECTION 14.3.  No Payment When Designated Senior Indebtedness in Default.

          During the continuance of any default in the payment of principal, or
premium, if any, or interest on any Designated Senior Indebtedness, when the
same becomes due, and after receipt by the Trustee and the Company from
representatives of holders of such Designated Senior Indebtedness of written
notice of such default, no direct or indirect payment (other than payments from
trusts previously created pursuant to Article XII) by or on behalf of the
Company of any kind or character (other than Qualified Equity Interests or other
securities the payment of which is subordinated, at least to the same extent as
the Notes, to the payment of all Senior Indebtedness which may at the time be
outstanding) may be made on account of the principal of, premium, if any, or
interest on, or the purchase, redemption or other acquisition of, the Securities
unless and until such default has been cured or waived or has ceased to exist or
such Designated Senior Indebtedness shall have been discharged or paid in full
in cash, after which the Company shall resume making any and all required
payments in respect of the Securities, including any missed payments.

          In addition, during the continuance of any other default with respect
to any Designated Senior Indebtedness that permits, or would permit with the
passage of time or the giving of notice or both, the maturity thereof to be
accelerated (a "Non-payment Default") and upon the earlier to occur of (a)
receipt by the Trustee and the Company from the representatives of holders of
such Designated Senior Indebtedness of a written notice of such Non-payment
Default or (b) if such Non-payment Default results from the acceleration of the
maturity of the Securities, the date of such acceleration, no payment (other
than payments from trusts previously created pursuant to Article XII) of any
kind or character (excluding Qualified Equity 

                                      112
<PAGE>
 
Interests or subordinated securities) may be made by the Company on account of
the principal of, premium, if any, or interest on, or the purchase, redemption,
or other acquisition of, the Securities for the period specified below (the
"Payment Blockage Period").

          The Payment Blockage Period shall commence upon the receipt of notice
of a Non-payment Default by the Trustee and the Company from the representatives
of holders of Designated Senior Indebtedness or the date of the acceleration
referred to in clause (b) of the preceding paragraph, as the case may be, and
shall end on the earliest to occur of the following events: (i) 179 days have
elapsed since the receipt of such notice or the date of the acceleration
referred to in clause (b) of the preceding paragraph (provided the maturity of
such Designated Senior Indebtedness shall not theretofore have been
accelerated), (ii) such default is cured or waived or ceases to exist or such
Designated Senior Indebtedness is discharged or paid in full in cash, or (iii)
such Payment Blockage Period shall have been terminated by written notice to the
Company or the Trustee from the representatives of holders of Designated Senior
Indebtedness initiating such Payment Blockage Period, after which the Company
shall promptly resume making any and all required payments in respect of the
Securities, including any missed payments.  Only one Payment Blockage Period
with respect to the Securities may be commenced within any 360 consecutive day
period.  No Non-payment Default with respect to Designated Senior Indebtedness
that existed or was continuing on the date of the commencement of any Payment
Blockage Period shall be, or can be, made the basis for the commencement of a
second Payment Blockage Period, whether or not within a period of 360
consecutive days, unless such default has been cured or waived for a period of
not less than 90 consecutive days.  In no event shall a Payment Blockage Period
extend beyond 180 days from the date of the receipt by the Trustee of the notice
or the date of the acceleration initiating such Payment Blockage Period and
there must be a 180 consecutive day period in any 360 day period during which no
Payment Blockage Period is in effect.

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<PAGE>
 
SECTION 14.4.  Subrogation to Rights of Holders of Senior Indebtedness.

          Subject to the payment in full in cash of all Senior Indebtedness, the
Holders of the Securities shall be subrogated to the extent of the payments or
distributions made to the holders of such Senior Indebtedness pursuant to the
provisions of this Article XIV to the rights of the holders of such Designated
Senior Indebtedness to receive payments and distributions of cash, property and
securities applicable to the Senior Indebtedness until the principal of,
premium, if any, and interest on the Securities shall be paid in full.  For
purposes of such subrogation, no payments or distributions to the holders of the
Senior Indebtedness of any cash, property or securities to which the Holders of
the Securities or the Trustee would be entitled except for the provisions of
this Article XIV, and no payments over pursuant to the provisions of this
Article XIV to the holders of Senior Indebtedness by Holders of the Securities
or the Trustee, shall, as among the Company, its creditors other than holders of
Senior Indebtedness and the Holders of the Securities, be deemed to be a payment
or distribution by the Company to or on account of the Senior Indebtedness.

SECTION 14.5.  Provisions Solely to Define Relative Rights.

          The provisions of this Article XIV are and are intended solely for the
purpose of defining the relative rights of the Holders of the Securities on the
one hand and the holders of Senior Indebtedness on the other hand.  Nothing
contained in this Article XIV or elsewhere in this Indenture or in the
Securities is intended to or shall (a) impair, as among the Company, its
creditors other than holders of Senior Indebtedness and the Holders of the
Securities, the obligation of the Company, which is absolute and unconditional,
to pay to the Holders of the Securities the principal of, premium, if any and
interest on the Securities as and when the same shall become due and payable in
accordance with their terms; (b) affect the relative rights against the Company
of the Holders of the Securities and creditors of the Company other than the
holders of Senior Indebtedness; or (c) prevent the Trustee or the Holder of any
Securities from exercising all remedies otherwise permitted by applicable law
upon default under this Indenture, subject to the rights, if any, under this
Article XIV of the holders of Senior Indebtedness to receive cash, property and
securities otherwise payable or deliverable to the Trustee or such Holder.

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<PAGE>
 
SECTION 14.6.  Trustee to Effectuate Subordination.

          Each Holder of a Security by its acceptance thereof authorizes and
directs the Trustee on its behalf to take such action as may be necessary or
appropriate to effectuate the subordination provided in this Article XIV and
appoints the Trustee its attorney-in-fact for any and all such purposes.

SECTION 14.7.  No Waiver of Subordination Provisions.

          No right of any present or future holder of any Senior Indebtedness to
enforce subordination as herein provided shall at any time in any way be
prejudiced or impaired by any act or failure to act on the part of the Company
or by any act or failure to act, in good faith, by any such holder, or by any
non-compliance by the Company with the terms, provisions and covenants of this
Indenture, regardless of any knowledge thereof any such holder may have or be
otherwise charged with.

          Without in any way limiting the generality of the foregoing paragraph,
the holders of Senior Indebtedness may, at any time and from time to time,
without the consent of or notice to the Trustee or the Holders of the
Securities, without incurring responsibility to the Holders of the Securities
and without impairing or releasing the subordination provided in this Article
XIV or the obligations hereunder of the Holders of the Securities to the holders
of Senior Indebtedness, do any one or more of the following:  (i) change the
manner, place or terms of payment or extend the time of payment of, or renew or
alter, Senior Indebtedness, or otherwise amend or supplement in any manner
Senior Indebtedness or any instrument evidencing the same or any agreement under
which Senior Indebtedness is outstanding; (ii) sell, exchange, release or
otherwise deal with any property pledged, mortgaged or otherwise securing Senior
Indebtedness; (iii) release any Person liable in any manner for the collection
of Senior Indebtedness; and (iv) exercise or refrain from exercising any rights
against the Company and any other Person.

SECTION 14.8.  Notice to Trustee.

          The Company shall give prompt written notice to the Trustee of any
fact known to the Company which would prohibit the making of any payment to or
by the Trustee in respect of the Securities.  Notwithstanding the provisions of
this Article XIV or any other provision of this Indenture, the Trustee shall not
be charged with knowledge of the existence of any facts which would prohibit the
making of any payment to or by the Trustee in respect of the Securities, unless
and until the Trustee shall have received written notice thereof from the

                                      115
<PAGE>
 
Company or a holder of Designated Senior Indebtedness or from any trustee
therefor; and, prior to the receipt of any such written notice, the Trustee,
subject to the provisions of Section 6.1, shall be entitled in all respects to
assume that no such facts exist; provided, however, that if the Trustee shall
not have received at its Corporate Trust Office the notice provided for in this
Section at least three Business Days prior to the date upon which by the terms
hereof any money may become payable for any purpose (including, without
limitation, the payment in cash of the principal of, premium, if any or interest
on any Security), then, anything herein contained to the contrary
notwithstanding, the Trustee shall have full power and authority to receive such
money and to apply the same to the purpose for which such money was received and
shall not be affected by any notice to the contrary which may be received by it
within three Business Days prior to such date.

SECTION 14.9.  Reliance on Judicial Order or Certificate of Liquidating Agent.

          Upon any payment or distribution of assets of the Company referred to
in this Article XIV, the Trustee, subject to the provisions of Section 6.1, and
the Holders of the Securities shall be entitled to rely upon any order or decree
entered by any court of competent jurisdiction in which such insolvency,
bankruptcy, receivership, liquidation, reorganization, dissolution, winding up
or similar case or proceeding is pending, or a certificate of the trustee in
bankruptcy, receiver, liquidating trustee, custodian, assignee for the benefit
of creditors, agent or other Person making such payment or distribution,
delivered to the Trustee or to the Holders of Securities, for the purpose of
ascertaining the Persons entitled to participate in such payment or
distribution, the holders of Senior Indebtedness and other Indebtedness of the
Company, the amount thereof or payable thereon, the amount or amounts paid or
distributed thereon and all other facts pertinent thereto or to this Article
XIV.

SECTION 14.10.  Trustee Not Fiduciary for Holders of Senior Indebtedness.

          The Trustee shall not be deemed to owe any fiduciary duty to the
holders of Senior Indebtedness and shall not be liable to any such holders if it
shall in good faith mistakenly pay over or distribute to Holders of Securities
or to the Company or to any other Person cash, property or securities to which
any holders of Senior Indebtedness shall be entitled by virtue of this Article
XIV or otherwise, except in the case of gross negligence or wilful misconduct on
the part of the Trustee.

                                      116
<PAGE>
 
SECTION 14.11.  Rights of Trustee as Holder of Senior Indebtedness; Preservation
                of Trustee's Rights.

          The Trustee in its individual capacity shall be entitled to all the
rights set forth in this Article XIV with respect to any Senior Indebtedness
which may at any time be held by it, to the same extent as any other holder of
Senior Indebtedness, and nothing in this Indenture shall deprive the Trustee of
any of its rights as such holder.

          Nothing in this Article XIV shall apply to claims of, or payments to,
the Trustee or its agent or counsel under or pursuant to Section 6.7.

SECTION 14.12.  Article Applicable to Paying Agents.

          In case at any time any Paying Agent other than the Trustee shall have
been appointed by the Company and be then acting hereunder, the term "Trustee"
as used in this Article XIV shall in such case (unless the context otherwise
requires) be construed as extending to and including such Paying Agent within
its meaning as fully for all intents and purposes as if such Paying Agent were
named in this Article XIV in addition to or in place of the Trustee; provided,
however, that Section 14.11 shall not apply to the Company or any Affiliate of
the Company if it or such Affiliate acts as Paying Agent.

                               ----------------

          This instrument may be executed in any number of counterparts, each of
which so executed shall be deemed to be an original, but all such counterparts
shall together constitute but one and the same instrument.

                                      117
<PAGE>
 
          IN WITNESS WHEREOF, the parties hereto have caused this Indenture to
be duly executed as of the day and year first above written.

                              GROUP MAINTENANCE AMERICA CORP.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              STATE STREET BANK AND TRUST COMPANY

                              By:
                                 _____________________________
                                 Name:
                                 Title:


                              Guarantors:

                              A-1 APPLIANCE & AIR CONDITIONING, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              A-1 MECHANICAL OF LANSING, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              AA ADVANCE AIR, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                                      118
<PAGE>
 
                              A-ABC APPLIANCE, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              A-ABC SERVICES, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              AA JARL, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              AIR CONDITIONING ENGINEERS, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              AIR CONDITIONING, PLUMBING & 
                                HEATING SERVICE CO., INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              AIRCON ENERGY INCORPORATED

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                                      119
<PAGE>
 
                              AIRTRON, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              AIRTRON OF CENTRAL FLORIDA, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              ALL SERVICE ELECTRIC, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              ARKANSAS MECHANICAL SERVICES, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              ATLANTIC INDUSTRIAL CONSTRUCTORS, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              BARR ELECTRIC CORP.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                                      120
<PAGE>
 
                              CALLAHAN ROACH PRODUCTS & PUBLICATIONS, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              CENTRAL AIR CONDITIONING CONTRACTORS, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              CENTRAL CAROLINA AIR CONDITIONING COMPANY

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              CHARLIE CRAWFORD, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              CLARK CONVERSE ELECTRIC SERVICE, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              COLONIAL AIR CONDITIONING COMPANY

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                                      121
<PAGE>
 
                              COMMERCIAL AIR HOLDING COMPANY

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              COMMERCIAL AIR, POWER & CABLE, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              CONTINENTAL ELECTRICAL CONSTRUCTION CO.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              COSTNER BROTHERS, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              DIVCO, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              DYNAMIC SOFTWARE CORPORATION

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                                      122
<PAGE>
 
                              EVANS SERVICES, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              THE FARFIELD COMPANY

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              FERGUSON ELECTRIC CORPORATION

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              GENTZLER ELECTRICAL CONTRACTORS, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              GILBERT MECHANICAL CONTRACTORS, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              GREGORY ELECTRIC, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                                      123
<PAGE>
 
                              GROUPMAC HOLDING CORP.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              GROUPMAC MANAGEMENT CO.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              HPS PLUMBING SERVICES, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              HALLMARK AIR CONDITIONING, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              HUNGERFORD MECHANICAL CORPORATION

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              J.D. STEWARD AIR CONDITIONING, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                                      124
<PAGE>
 
                              K & N PLUMBING, HEATING AND AIR 
                                CONDITIONING, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              LANEY'S, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              LINFORD SERVICE CO.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              MACDONALD-MILLER CO., INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              MACDONALD-MILLER INDUSTRIES, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              MACDONALD-MILLER OF OREGON, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                                      125
<PAGE>
 
                              MACDONALD-MILLER SERVICE, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              MASTERS, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              MECHANICAL INTERIORS, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              MERRITT ISLAND AIR & HEAT, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              NEW CONSTRUCTION AIR CONDITIONING, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              NORON, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                                      126
<PAGE>
 
                              PAUL E. SMITH CO., INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              PHOENIX ELECTRIC COMPANY

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              RAY AND CLAUDE GOODWIN, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              RELIABLE MECHANICAL, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              ROMANOFF ELECTRIC CORP.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              SIBLEY SERVICES, INCORPORATED

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                                      127
<PAGE>
 
                              SOUTHEAST MECHANICAL SERVICE, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              STEPHEN C. POMEROY, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              STERLING AIR CONDITIONING, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              SUN PLUMBING, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              TEAM MECHANICAL, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              TRINITY CONTRACTORS, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                                      128
<PAGE>
 
                              UNITED ACQUISITION CORP.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              VALLEY WIDE PLUMBING AND HEATING, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              VAN'S COMFORTEMP AIR CONDITIONING, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              VANTAGE MECHANICAL CONTRACTORS, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              WADE'S HEATING AND COOLING, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              WIEGOLD & SONS, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                                      129
<PAGE>
 
                              WILLIS REFRIGERATION, AIR 
                                CONDITIONING & HEATING, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              YALE INCORPORATED

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                              PACIFIC RIM MECHANICAL CONTRACTORS, INC.

                              By:
                                 _____________________________
                                 Name:
                                 Title:

                                      130
<PAGE>
 
                                                                      Schedule A
                                                                      ----------

                        GROUP MAINTENANCE AMERICA CORP.

          Except as otherwise indicated, 100% of the voting stock of each of the
Subsidiaries listed below is owned by its parent.
                                                               
                                                               State of 
Name of Subsidiary                                             Incorporation
- ------------------                                             -------------

A-1 Appliance & Air Conditioning, Inc.                         Delaware    
A-1 Mechanical of Lansing, Inc.                                Michigan  
AA Advance Air, Inc.                                           Florida   
A-ABC Appliance, Inc.                                          Texas     
A-ABC Services, Inc.                                           Delaware  
AA JARL, Inc.                                                  Delaware  
Air Conditioning Engineers, Inc.                               Michigan  
Air Conditioning, Plumbing & Heating Service Co., Inc.         Colorado  
Aircon Energy Incorporated                                     California
Airtron, Inc.                                                  Delaware  
Airtron of Central Florida, Inc.                               Florida   
All Service Electric, Inc.                                     Florida   
Arkansas Mechanical Services, Inc.                             Arkansas  
Atlantic Industrial Constructors, Inc.                         Virginia  
Barr Electric Corp.                                            Illinois  
Callahan Roach Products & Publications, Inc.                   Colorado  
Central Air Conditioning Contractors, Inc.                     Delaware   
Central Carolina Air Conditioning Company                      North Carolina
Charlie Crawford, Inc.                                         Delaware  
Clark Converse Electric Service, Inc.                          Ohio      
Colonial Air Conditioning Company                              Delaware  
Commercial Air Holding Company                                 Maryland  
Commercial Air, Power & Cable, Inc.                            Maryland  
Continental Electrical Construction Co.                        Delaware  
Costner Brothers, Inc.                                         South Carolina
Divco, Inc.                                                    Washington
Dynamic Software Corporation                                   Maryland  
Evans Services, Inc.                                           Alabama   
The Farfield Company                                           Delaware  
Ferguson Electric Corporation                                  Delaware  
Gentzler Electrical Contractors, Inc.                          Delaware  
Gilbert Mechanical Contractors, Inc.                           Minnesota 
Gregory Electric, Inc.                                         Illinois  
GroupMAC Holding Corp.                                         Delaware  
GroupMAC Management Co.                                        Delaware  
HPS Plumbing Services, Inc.                                    California
<PAGE>
 
                                                               State of 
Name of Subsidiary                                             Incorporation
- ------------------                                             -------------

Hallmark Air Conditioning, Inc.                                Delaware  
Hungerford Mechanical Corporation                              Virginia  
J.D. Steward Air Conditioning, Inc.                            Colorado  
K & N Plumbing, Heating and Air Conditioning, Inc.             Delaware   
Laney's, Inc.                                                  Delaware  
Linford Service Co.                                            California
MacDonald-Miller Co., Inc.                                     Washington
MacDonald-Miller Industries, Inc.                              Washington
MacDonald-Miller of Oregon, Inc.                               Delaware  
MacDonald-Miller Service, Inc.                                 Washington
Masters, Inc.                                                  Maryland  
Mechanical Interiors, Inc.                                     Delaware  
Merritt Island Air & Heat, Inc.                                Delaware  
New Construction Air Conditioning, Inc.                        Michigan  
Noron, Inc.                                                    Ohio      
Pacific Rim Mechanical Contractors, Inc.                       California
Paul E. Smith Co., Inc.                                        Indiana   
Phoenix Electric Company                                       Delaware  
Ray and Claude Goodwin, Inc.                                   Florida   
Reliable Mechanical, Inc.                                      Delaware  
Romanoff Electric Corp.                                        Ohio      
Sibley Services, Incorporated                                  Tennessee 
Southeast Mechanical Service, Inc.                             Florida   
Stephen C. Pomeroy, Inc.                                       Delaware  
Sterling Air Conditioning, Inc.                                Delaware  
Sun Plumbing, Inc.                                             Florida   
Team Mechanical, Inc.                                          Utah      
Trinity Contractors, Inc.                                      Delaware  
United Acquisition Corp.                                       Iowa      
Valley Wide Plumbing and Heating, Inc.                         Colorado  
Van's Comfortemp Air Conditioning, Inc.                        Florida   
Vantage Mechanical Contractors, Inc.                           Maryland  
Wade's Heating and Cooling, Inc.                               Florida   
Wiegold & Sons, Inc.                                           Florida   
Willis Refrigeration, Air Conditioning & Heating, Inc.         Ohio      
Yale Incorporated                                              Minnesota  

                                      -2-
<PAGE>
 
                                                                     EXHIBIT A-1
                                                                     -----------

                              [FORM OF SECURITY]

          THE SECURITY EVIDENCED HEREBY HAS NOT BEEN REGISTERED UNDER THE
SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE OR OTHER
SECURITIES LAWS.  NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN
MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE
DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR UNLESS THE TRANSACTION IS
EXEMPT FROM, OR NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES
ACT.  THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF (1) REPRESENTS THAT
(A) IT IS A "QUALIFIED INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A UNDER THE
SECURITIES ACT) OR (B) IT IS NOT A "U.S. PERSON" AND IS ACQUIRING THIS SECURITY
IN AN "OFFSHORE TRANSACTION" PURSUANT TO RULE 903 or 904 OF REGULATION S, (2)
AGREES THAT IT WILL NOT PRIOR TO (X) THE DATE WHICH IS TWO YEARS (OR SUCH
SHORTER PERIOD OF TIME AS PERMITTED BY RULE 144(k) UNDER THE SECURITIES ACT OR
ANY SUCCESSOR PROVISION THEREUNDER) AFTER THE LATER OF THE ORIGINAL ISSUE DATE
HEREOF (OR OF ANY PREDECESSOR OF THIS SECURITY) OR THE LAST DAY ON WHICH THE
COMPANY OR ANY AFFILIATE OF THE COMPANY WAS THE OWNER OF THIS SECURITY OR ANY
PREDECESSOR OF THIS SECURITY AND (Y) SUCH LATER DATE, IF ANY, AS MAY BE REQUIRED
BY APPLICABLE LAWS (THE "RESALE RESTRICTION TERMINATION DATE"), OFFER, SELL OR
OTHERWISE TRANSFER THIS SECURITY EXCEPT (A) TO THE COMPANY, (B) PURSUANT TO A
REGISTRATION STATEMENT WHICH HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES
ACT, (C) FOR SO LONG AS THE SECURITY IS ELIGIBLE FOR RESALE PURSUANT TO RULE
144A, TO A PERSON IT REASONABLY BELIEVES IS A "QUALIFIED INSTITUTIONAL BUYER"
(AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT) THAT PURCHASES THIS SECURITY
FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER TO
WHOM NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A,
(D) PURSUANT TO OFFERS AND SALES TO NON-U.S. PERSONS THAT OCCUR OUTSIDE THE
UNITED STATES WITHIN THE MEANING OF REGULATION S UNDER THE SECURITIES ACT, OR
(E) PURSUANT TO ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS
OF THE SECURITIES ACT AND (3) AGREES THAT IT WILL GIVE TO EACH PERSON TO WHOM
THIS SECURITY IS TRANSFERRED A NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS
LEGEND; PROVIDED THAT THE COMPANY, THE TRUSTEE, AND THE SECURITY REGISTRAR SHALL
HAVE THE RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER (I) PURSUANT TO CLAUSE
(D) OR (E) TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATION
AND/OR OTHER INFORMATION SATISFACTORY TO EACH OF THEM, AND (II) IN EACH OF THE
FOREGOING CASES, TO REQUIRE THAT A CERTIFICATION OF TRANSFER IN THE FORM
APPEARING ON THE OTHER SIDE OF THIS SECURITY IS COMPLETED AND DELIVERED BY THE
TRANSFEROR TO THE TRUSTEE.  THIS LEGEND WILL BE REMOVED UPON THE REQUEST OF THE


                                     A-1-1
<PAGE>
 
HOLDER AFTER THE RESALE RESTRICTION TERMINATION DATE.  AS USED HEREIN, THE TERMS
"OFFSHORE TRANSACTION," "UNITED STATES" AND "U.S. PERSON" HAVE THE RESPECTIVE
MEANINGS GIVEN TO THEM BY REGULATION S UNDER THE SECURITIES ACT.

                        Group Maintenance America Corp.

              9 3/4% Senior Subordinated Note due 2009, Series A

No. ___________                                                       $_________

                                                             CUSIP NO.__________

          Group Maintenance America Corp., a corporation duly organized and
existing under the laws of the State of Delaware (herein called the "Company,"
which term includes any successor Person under the Indenture hereinafter
referred to), for value received, hereby promises to pay to ___________ or
registered assigns, the principal sum of __________ Dollars on January 15, 2009
and to pay interest thereon from January 22, 1999 or from the most recent
Interest Payment Date to which interest has been paid or duly provided for,
semiannually in arrears on January 15 and July 15 in each year, commencing July
15, 1999 at the rate of 9 3/4% per annum, until the principal hereof is paid or
duly provided for, provided that any principal and premium, and any such
installment of interest, which is overdue shall bear interest at the rate of
9 3/4% per annum (to the extent that the payment of such interest shall be
legally enforceable), from the dates such amounts are due until they are paid or
duly provided for. The interest so payable and punctually paid or duly provided
for, on any Interest Payment Date will, as provided in such Indenture, be paid
to the Person in whose name this Security (or one or more predecessor
Securities) is registered at the close of business on the Regular Record Date
for such interest, which shall be the January 1 and July 1 (whether or not a
Business Day), as the case may be, next preceding such Interest Payment Date.
Any such interest not so punctually paid or duly provided for will forthwith
cease to be payable to the Holder on such Regular Record Date and may either be
paid to the Person in whose name this Security (or one or more predecessor
Securities) is registered at the close of business on a Special Record Date for
the payment of such Defaulted Interest to be fixed by the Trustee, notice
whereof shall be given to Holders of securities not less than 10 days prior to
such Special Record Date, or be paid at any time in any other lawful manner not
inconsistent with the requirements of any securities exchange on which the
Securities may be listed, and upon such notice as may be required by such
exchange, all as more fully provided in said Indenture.


                                     A-1-2
<PAGE>
 
          Payment of the principal of (and premium, if any) and interest on this
Security will be made at the office or agency of the Company maintained for that
purpose in the Borough of Manhattan, The City of New York, in such coin or
currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts; provided, however, that, at the
option of the Company, payment of interest may be made by check mailed to the
address of the Person entitled thereto as such address shall appear in the
Security Register.

          Reference is hereby made to the further provisions of this Security
set forth on the reverse hereof, which further provisions shall for all purposes
have the same effect as if set forth at this place.

          Unless the certificate of authentication hereon has been executed by
the Trustee referred to on the reverse hereof by manual signature, this Security
shall not be entitled to any benefit under the Indenture or be valid or
obligatory for any purpose.




                                     A-1-3
<PAGE>
 
          IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed and attested.

Attest:                            Group Maintenance America Corp.

                                   By:
_______________________________       _________________________________
Title:                                Title:



                                     A-1-4
<PAGE>
 
                    Trustee's Certificate of Authentication

          This is one of the Securities referred to in the within-mentioned
Indenture.

                                    STATE STREET BANK AND TRUST 
                                      COMPANY, as Trustee


Dated: January 22, 1999             By:
                                       ____________________________
                                       Authorized Signatory


                                     A-1-5
<PAGE>
 
                          Form of Reverse of Security

          This Security is one of a duly authorized issue of Securities of the
Company designated as 9 3/4% Senior Subordinated Notes due 2009, Series A
(herein called the "Initial Securities"), limited in aggregate principal amount
at Stated Maturity to $130,000,000 issued and to be issued under an Indenture,
dated as of January 22, 1999 (herein called the "Indenture," which term shall
have the meaning assigned to it in such instrument), among the Company, the
guarantors named therein and State Street Bank and Trust Company, as Trustee
(herein called the "Trustee," which term includes any successor trustee under
the Indenture), and reference is hereby made to the Indenture for a statement of
the respective rights, limitations of rights, duties and immunities thereunder
of the Company, the Trustee and the Holders of the Securities and of the terms
upon which the Securities are, and are to be, authenticated and delivered.  The
Securities include the Initial Securities and the Exchange Securities referred
to below, issued in exchange for the Initial Securities pursuant to the
Registration Rights Agreement.  The Initial Securities and the Exchange
Securities are treated as a single class of securities under the Indenture.

          The terms of the Securities include those stated in the Indenture and
those made part of the Indenture by reference to the Trust Indenture Act of 1939
(15 U.S.C. (S)(S) 7aaa - 77bbbb (the "TIA"), as in effect on the date of the
Indenture.  Notwithstanding anything to the contrary herein, the Securities are
subject to all such terms, and Holders of Securities are referred to the
Indenture and the TIA for a statement of such terms.  The Securities are
unsecured senior subordinated obligations of the Company limited to
$200,000,000.

          This Security is redeemable at the option of the Company, in whole or
in part, at any time on or after January 15, 2004, at the Redemption Prices
(expressed as percentages of principal amount) set forth below, plus accrued and
unpaid interest, if any, thereon to the Redemption Date, if redeemed during the
12-month period beginning January 15 of the years indicated below:

                                     Redemption
          Year                         Price
          ----                       ----------

          2004..................      104.875
          2005..................      103.250
          2006..................      101.625
          2007 and thereafter...      100.000%


                                     A-1-6
<PAGE>
 
          In addition, at any time, or from time to time, on or prior to January
15, 2002, the Company may, at its option, use the net cash proceeds of one or
more Equity Offerings to redeem up to an aggregate of 35% of the principal
amount of the Securities originally issued, at a redemption price equal to
109.750% of the principal amount thereof plus accrued and unpaid interest, if
any, thereon to the Redemption Date; provided that at least 65% of the
originally issued principal amount of Securities remains outstanding immediately
after the occurrence of such redemption.  In order to effect the foregoing
redemption with the proceeds of any Equity Offering, the Company shall send a
redemption notice not later than 90 days after the consummation of any such
Equity Offering.

          The Securities are not subject to any sinking fund.

          The Indenture provides that the Company is obligated (a) upon the
occurrence of a Change in Control to make an offer to purchase all outstanding
Securities at a purchase price equal to 101% of the principal amount thereof,
plus accrued and unpaid interest, if any, thereon to the date of purchase and
(b) to make an offer to purchase Securities with a portion of the net cash
proceeds of certain sales or other dispositions of assets (not applied as
specified in the Indenture within the periods set forth therein) at a purchase
price equal to 100% of the principal amount thereof plus accrued and unpaid
interest, if any, to the date of purchase.

          In the event of redemption or purchase of this Security in part only
pursuant to a Change of Control Offer or an Asset Sale Offer, a new Security or
Securities for the unredeemed or unpurchased portion hereof will be issued in
the name of the Holder hereof upon the cancellation hereof.

          The Indenture contains provisions for defeasance at any time of the
entire indebtedness of this Security or of certain restrictive covenants and
Events of Default with respect to this Security, in each case upon compliance
with certain conditions set forth in the Indenture.

          If an Event of Default shall occur and be continuing, there may be
declared due and payable the principal of, premium, if any, and accrued and
unpaid interest, if any, on all of the outstanding Securities, in the manner and
with the effect provided in the Indenture.

          The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the
Company and the rights of the Holders of the Securities under the Indenture at
any time by the Company and the Trustee with the consent of the Holders of 


                                     A-1-7
<PAGE>
 
a majority in aggregate principal amount of the Securities at the time
Outstanding. The Indenture also contains provisions permitting the Holders of
specified percentages in aggregate principal amount of the Securities at the
time Outstanding, on behalf of the Holders of all the Securities, to waive
compliance by the Company with certain provisions of the Indenture and certain
past defaults under the Indenture and their consequences. Any such consent or
waiver by the Holder of this Security shall be conclusive and binding upon such
Holder and upon all future Holders of this Security and of any Security issued
upon the registration of transfer hereof or in exchange herefor or in lieu
hereof, whether or not notation of such consent or waiver is made upon this
Security.

          As provided in and subject to the provisions of the Indenture, the
Holder of this Security shall not have the right to institute any proceeding
with respect to the Indenture or for the appointment of a receiver or trustee or
for any other remedy thereunder, unless such Holder shall have previously given
the Trustee written notice of a continuing Event of Default with respect to the
Securities, the Holders of not less than 25% in principal amount of the
Securities at the time Outstanding shall have made written request to the
Trustee to institute proceedings in respect of such Event of Default as Trustee
and offered the Trustee reasonable indemnity and the Trustee shall not have
received from the Holders of a majority in principal amount of Securities at the
time Outstanding a direction inconsistent with such request, and shall have
failed to institute any such proceeding for 60 days after receipt of such
notice, request and offer of indemnity.  The foregoing shall not apply to
certain suits described in the Indenture, including any suit instituted by the
Holder of this Security for the enforcement of any payment of principal hereof
or any premium or interest hereon on or after the respective due dates expressed
herein (or, in the case of redemption, on or after the Redemption Date or, in
the case of any purchase of this Security required to be made pursuant to a
Change of Control Offer or an Asset Sale Offer, on or after the relevant
Purchase Date).

          No reference herein to the Indenture and no provision of this Security
or of the Indenture shall alter or impair the obligation of the Company, which
is absolute and unconditional, to pay the principal of (and premium, if any) and
interest on this Security at the times, place and rate, and in the coin or
currency, herein prescribed.

          As provided in the Indenture and subject to certain limitations
therein set forth, the transfer of this Security is registrable in the Security
Register, upon surrender of this Security for registration of transfer at the
office or agency 


                                     A-1-8
<PAGE>
 
of the Company in the Borough of Manhattan, The City of New York, duly endorsed
by, or accompanied by a written instrument of transfer in form satisfactory to
the Company and the Security Registrar duly executed by, the Holder hereof or
his attorney duly authorized in writing, and thereupon one or more new
Securities, of authorized denominations and for the same aggregate principal
amount, will be issued to the designated transferee or transferees.

          This Security is issuable only in registered form without coupons in
denominations of $1,000 and any integral multiple thereof.  As provided in the
Indenture and subject to certain limitations therein set forth, Securities are
exchangeable for a like aggregate principal amount of Securities of like tenor
of a different authorized denomination, as requested by the Holder surrendering
the same.

          No service charge shall be made for any such registration of transfer
or exchange, but the Company may require payment of a sum sufficient to cover
any tax or other governmental charge payable in connection therewith.

          Prior to due presentment of this Security for registration of
transfer, the Company, the Trustee and any agent of the Company or the Trustee
may treat the Person in whose name this Security is registered as the owner
hereof for all purposes, whether or not this Security be overdue, and neither
the Company, the Trustee nor any such agent shall be affected by notice to the
contrary.

          Pursuant to the Registration Rights Agreement by and among the Company
and the Initial Purchasers, the Company will be obligated to consummate an
exchange offer pursuant to which the Holder of this Security shall have the
right to exchange this Security for 9 3/4% Senior Subordinated Notes due 2009,
Series B, of the Company (herein called the "Exchange Securities"), which have
been registered under the Securities Act, in like principal amount and having
identical terms as the Initial Securities (other than as set forth in this
paragraph).  The Holders of Initial Securities shall be entitled to receive
certain additional interest payments in the event such exchange offer is not
consummated and upon certain other conditions, all pursuant to and in accordance
with the terms of the Registration Rights Agreement.  Such additional interest
will constitute liquidated damages and will be the exclusive monetary remedy
available to the Holder of this Security in respect of a Registration Default
(as defined in the Registration Rights Agreement), but without prejudice to any
non-monetary remedies otherwise available to such Holder, whether pursuant to
the Registration Rights Agreement or otherwise.


                                     A-1-9
<PAGE>
 
          Interest on this Security shall be computed on the basis of a 360-day
year of twelve 30-day months.

          The obligations of the Company under the Indenture and this Security
are expressly subordinated to all Senior Indebtedness and senior in right of
payment to all Subordinated Indebtedness, in each case to the extent set forth
in Article XIV of the Indenture, and reference is hereby made to such Indenture
for the precise terms of such subordination.

          As provided in the Indenture and subject to certain limitations
therein set forth, the obligations of the Company under the Indenture and this
Security are Guaranteed pursuant to Guarantees endorsed hereon as provided in
the Indenture.  Each Holder, by holding this Security, agrees to all of the
terms and provisions of said Guarantees.  The Indenture provides that each
Guarantor shall be released from its Guaranty upon compliance with certain
conditions.

          All terms used in this Security which are defined in the Indenture
shall have the meanings assigned to them in the Indenture.

          The Indenture and this Security shall be governed by and construed in
accordance with the laws of the State of New York, without regard to the
conflicts of laws principles thereof.


                                    A-1-10
<PAGE>
 
                                ASSIGNMENT FORM

If you, the Holder, want to assign this Security, fill in the form below and
have your signature guaranteed:

I (or we) assign and transfer this Security to

________________________________________________________________________________

(Insert assignee's social security or tax ID number)

________________________________________________________________________________
 
________________________________________________________________________________
 
________________________________________________________________________________
(Print or type assignee's name, address and zip code) and irrevocably appoint

________________________________________________________________________________
agent to transfer this Security on the books of the Company.  The agent may
substitute another to act for such agent.

          In connection with any transfer of this Security occurring prior to
the date which is the earlier of (i) the date of the declaration by the
Commission of the effectiveness of a registration settlement under the
Securities Act of 1933, as amended (the "Securities Act"), covering resales of
this Security (which effectiveness shall not have been suspended or terminated
at the date of the transfer) and (ii) the date two years (or such shorter period
of time as permitted by Rule 144(k) under the Securities Act or any successor
provision thereunder) after the later of the original issuance date appearing on
the face of this Security (or any predecessor thereto) or the last date on which
the Company or any affiliate of the Company was the owner of this Security (or
any predecessor thereto), the undersigned confirms that it has not utilized any
general solicitation or general advertising in connection with the transfer and
that:

                                  [Check One]

[_]       (a)  this Security is being transferred in compliance with the
               exemption from registration under the Securities Act provided by
               Rule 144A thereunder.


                                    A-1-11
<PAGE>
 
[_]       (b)  this Security is being transferred other than in accordance with
               (a) above and documents, and a transferor certificate
               substantially in the form of Exhibit C to the Indenture in the
               case of a transfer pursuant to Regulation S, are being furnished
               which comply with the conditions of transfer set forth in this
               Security and the Indenture.

If none of the foregoing boxes is checked and, in the case of (b) above, if the
appropriate document is not attached or otherwise furnished to the Trustee, the
Trustee or Security Registrar shall not be obliged to register this Security in
the name of any Person other than the Holder hereof unless and until the
conditions to any such transfer of registration set forth herein and in Section
3.14 of the Indenture shall have been satisfied.

________________________________________________________________________________

Date: ___________  Your Signature:________________________________
                                  (Sign exactly as your name 
                                  appears on the other side of 
                                  this Security)

                               By:_________________________________
                                  NOTICE: To be executed by 
                                  an executive officer

Signature Guarantee:_______________________________

             TO BE COMPLETED BY PURCHASER IF (a) ABOVE IS CHECKED

          The undersigned represents and warrants that it is purchasing this
Security for its own account or an account with respect to which it exercises
sole investment discretion and that it and any such account is a "qualified
institutional buyer" within the meaning of Rule 144A under the Securities Act
and is aware that the sale to it is being made in reliance on Rule 144A and
acknowledges that it has received such information regarding the Company as the
undersigned has requested pursuant to Rule 144A (including the information
specified in Rule 144A(d)(4)) or has determined not to request such information
and that it is aware that the transferor is relying upon the undersigned's
foregoing representations in order to claim the exemption from registration
provided by Rule 144A.

Dated:______________              ________________________________
                                  NOTICE: To be executed by an
                                  executive officer


                                    A-1-12
<PAGE>
 
                      OPTION OF HOLDER TO ELECT PURCHASE

          If you want to elect to have this Security purchased in its entirety
by the Company pursuant to Section 10.13 or 10.14 of the Indenture, check the
applicable box:

     Section 10.13 [_]

     Section 10.14 [_]

          If you want to elect to have only a part of the principal amount of
this Security purchased by the Company pursuant to Section 10.13 or 10.14 of the
Indenture, state the portion of such amount:  $___________

Dated:                                   Your Signature:_______________________
                                         (Sign exactly as name appears on the
                                         other side of this Security)

Signature Guarantee:____________________________________________
                    (Signature must be guaranteed by a financial 
                    institution that is a member of the 
                    Securities Transfer Agent Medallion Program 
                    ("STAMP"), the Stock Exchange Medallion 
                    Program ("SEMP"), the New York Stock 
                    Exchange, Inc.  Medallion Signature Program 
                    ("MSP") or such other signature guarantee 
                    program as may be determined by the Security 
                    Registrar in addition to, or in substitution 
                    for, STAMP, SEMP or MSP, all in accordance with 
                    the Securities Exchange Act of 1934, as amended.)



                                    A-1-13
<PAGE>
 
                                                                     EXHIBIT A-2
                                                                     -----------

                        Group Maintenance America Corp.

              9 3/4% Senior Subordinated Note due 2009, Series B

No. ___________                                                     $__________
                                                            CUSIP NO.__________

          Group Maintenance America Corp., a corporation duly organized and
existing under the laws of the State of Delaware (herein called the "Company,"
which term includes any successor Person under the Indenture hereinafter
referred to), for value received, hereby promises to pay to ________________ or
registered assigns, the principal sum of ________________ Dollars on January 15,
2009 and to pay interest thereon from January 22, 1999 or from the most recent
Interest Payment Date to which interest has been paid or duly provided for,
semiannually in arrears on January 15 and July 15 in each year, commencing
January 22, 1999 at the rate of 9 3/4% per annum, until the principal hereof is
paid or duly provided for, provided that any principal and premium, and any such
installment of interest, which is overdue shall bear interest at the rate of 9
3/4% per annum (to the extent that the payment of such interest shall be legally
enforceable), from the dates such amounts are due until they are paid or duly
provided for.  The interest so payable and punctually paid or duly provided for,
on any Interest Payment Date will, as provided in such Indenture, be paid to the
Person in whose name this Security (or one or more predecessor Securities) is
registered at the close of business on the Regular Record Date for such
interest, which shall be the January 1 and July 1 (whether or not a Business
Day), as the case may be, next preceding such Interest Payment Date.  Any such
interest not so punctually paid or duly provided for will forthwith cease to be
payable to the Holder on such Regular Record Date and may either be paid to the
Person in whose name this Security (or one or more predecessor Securities) is
registered at the close of business on a Special Record Date for the payment of
such Defaulted Interest to be fixed by the Trustee, notice whereof shall be
given to Holders of securities not less than 10 days prior to such Special
Record Date, or be paid at any time in any other lawful manner not inconsistent
with the requirements of any securities exchange on which the Securities may be
listed, and upon such notice as may be required by such exchange, all as more
fully provided in said Indenture.

          Payment of the principal of (and premium, if any) and interest on this
Security will be made at the office or agency of the Company maintained for that
purpose in the Borough of 


                                     A-2-1
<PAGE>
 
Manhattan, The City of New York, in such coin or currency of the United States
of America as at the time of payment is legal tender for payment of public and
private debts; provided, however, that, at the option of the Company, payment of
interest may be made by check mailed to the address of the Person entitled
thereto as such address shall appear in the Security Register.

          Reference is hereby made to the further provisions of this Security
set forth on the reverse hereof, which further provisions shall for all purposes
have the same effect as if set forth at this place.

          Unless the certificate of authentication hereon has been executed by
the Trustee referred to on the reverse hereof by manual signature, this Security
shall not be entitled to any benefit under the Indenture or be valid or
obligatory for any purpose.



                                     A-2-2
<PAGE>
 
          IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed and attested.

Attest:                            Group Maintenance America Corp.

                                   By:
_______________________________       ________________________________
Title:                                Title:


                                     A-2-3
<PAGE>
 
                    Trustee's Certificate of Authentication

          This is one of the Securities referred to in the within-mentioned
Indenture.

                                   STATE STREET BANK AND TRUST 
                                     COMPANY, as Trustee

Dated: January 22, 1999            By:
                                      _______________________________
                                      Authorized Signatory


                                     A-2-4
<PAGE>
 
                          Form of Reverse of Security

          This Security is one of a duly authorized issue of Securities of the
Company designated as 9 3/4% Senior Subordinated Notes due 2009, Series B
(herein called the "Exchange Securities"), limited in aggregate principal amount
at Stated Maturity to $130,000,000 issued and to be issued under an Indenture,
dated as of January 22, 1999 (herein called the "Indenture," which term shall
have the meaning assigned to it in such instrument), among the Company, the
guarantors named therein and State Street Bank and Trust Company, as Trustee
(herein called the "Trustee," which term includes any successor trustee under
the Indenture), and reference is hereby made to the Indenture for a statement of
the respective rights, limitations of rights, duties and immunities thereunder
of the Company, the Trustee and the Holders of the Securities and of the terms
upon which the Securities are, and are to be, authenticated and delivered.  The
Securities include the Initial Securities and the Exchange Securities, issued in
exchange for the Initial Securities pursuant to the Registration Rights
Agreement.  The Initial Securities and the Exchange Securities are treated as a
single class of securities under the Indenture.

          The terms of the Securities include those stated in the Indenture and
those made part of the Indenture by reference to the Trust Indenture Act of 1939
(15 U.S.C. (S)(S) 7aaa - 77bbbb (the "TIA")), as in effect on the date of the
Indenture.  Notwithstanding anything to the contrary herein, the Securities are
subject to all such terms, and Holders of Securities are referred to the
Indenture and the TIA for a statement of such terms. The Securities are
unsecured senior subordinated obligations of the Company limited to
$200,000,000.

          This Security is redeemable at the option of the Company, in whole or
in part, at any time on or after January 15, 2004, at the Redemption Prices
(expressed as percentages of principal amount) set forth below, plus accrued and
unpaid interest, if any, thereon to the Redemption Date, if redeemed during the
12-month period beginning January 15 of the years indicated below:



                                     A-2-5
<PAGE>
 
                                     Redemption
           Year                        Price
           ----                      ----------

           2004..................      104.875
           2005..................      103.250
           2006..................      101.625
           2007 and thereafter...      100.000%

          In addition, at any time, or from time to time, on or prior to January
15, 2002, the Company may, at its option, use the net cash proceeds of one or
more Equity Offerings to redeem up to an aggregate of 35% of the principal
amount of the Securities originally issued, at a redemption price equal to
109.750% of the principal amount thereof plus accrued and unpaid interest, if
any, thereon to the Redemption Date; provided that at least 65% of the
originally issued principal amount of Securities remains outstanding immediately
after the occurrence of such redemption.  In order to effect the foregoing
redemption with the proceeds of any Equity Offering, the Company shall send the
redemption notice not later than 90 days after the consummation of any such
Equity Offering.

          The Securities are not subject to any sinking fund.

          The Indenture provides that the Company is obligated (a) upon the
occurrence of a Change in Control to make an offer to purchase all outstanding
Securities at a purchase price equal to 101% of the principal amount thereof,
plus accrued and unpaid interest, if any, thereon to the date of purchase and
(b) to make an offer to purchase Securities with a portion of the net cash
proceeds of certain sales or other dispositions of assets (not applied as
specified in the Indenture within the periods set forth therein) at a purchase
price equal to 100% of the principal amount thereof plus accrued and unpaid
interest, if any, to the date of purchase.

          In the event of redemption or purchase of this Security in part only
pursuant to a Change of Control Offer or an Asset Sale Offer, a new Security or
Securities for the unredeemed or unpurchased portion hereof will be issued in
the name of the Holder hereof upon the cancellation hereof.

          The Indenture contains provisions for defeasance at any time of the
entire indebtedness of this Security or of certain restrictive covenants and
Events of Default with respect to this Security, in each case upon compliance
with certain conditions set forth in the Indenture.

          If an Event of Default shall occur and be continuing, there may be
declared due and payable the principal of, premium, if any, and accrued and
unpaid interest, if any, on all 


                                     A-2-6
<PAGE>
 
of the outstanding Securities, in the manner and with the effect provided in the
Indenture.

          The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the
Company and the rights of the Holders of the Securities under the Indenture at
any time by the Company and the Trustee with the consent of the Holders of a
majority in aggregate principal amount of the Securities at the time
Outstanding.  The Indenture also contains provisions permitting the Holders of
specified percentages in aggregate principal amount of the Securities at the
time Outstanding, on behalf of the Holders of all the Securities, to waive
compliance by the Company with certain provisions of the Indenture and certain
past defaults under the Indenture and their consequences.  Any such consent or
waiver by the Holder of this Security shall be conclusive and binding upon such
Holder and upon all future Holders of this Security and of any Security issued
upon the registration of transfer hereof or in exchange herefor or in lieu
hereof, whether or not notation of such consent or waiver is made upon this
Security.

          As provided in and subject to the provisions of the Indenture, the
Holder of this Security shall not have the right to institute any proceeding
with respect to the Indenture or for the appointment of a receiver or trustee or
for any other remedy thereunder, unless such Holder shall have previously given
the Trustee written notice of a continuing Event of Default with respect to the
Securities, the Holders of not less than 25% in principal amount of the
Securities at the time Outstanding shall have made written request to the
Trustee to institute proceedings in respect of such Event of Default as Trustee
and offered the Trustee reasonable indemnity and the Trustee shall not have
received from the Holders of a majority in principal amount of Securities at the
time Outstanding a direction inconsistent with such request, and shall have
failed to institute any such proceeding for 60 days after receipt of such
notice, request and offer of indemnity.  The foregoing shall not apply to
certain suits described in the Indenture, including any suit instituted by the
Holder of this Security for the enforcement of any payment of principal hereof
or any premium or interest hereon on or after the respective due dates expressed
herein (or, in the case of redemption, on or after the Redemption Date or, in
the case of any purchase of this Security required to be made pursuant to a
Change of Control Offer or an Asset Sale Offer, on or after the relevant
Purchase Date).

          No reference herein to the Indenture and no provision of this Security
or of the Indenture shall alter or impair the obligation of the Company, which
is absolute and unconditional, 


                                     A-2-7
<PAGE>
 
to pay the principal of (and premium, if any) and interest on this Security at
the times, place and rate, and in the coin or currency, herein prescribed.

          As provided in the Indenture and subject to certain limitations
therein set forth, the transfer of this Security is registrable in the Security
Register, upon surrender of this Security for registration of transfer at the
office or agency of the Company in the Borough of Manhattan, The City of New
York, duly endorsed by, or accompanied by a written instrument of transfer in
form satisfactory to the Company and the Security Registrar duly executed by,
the Holder hereof or his attorney duly authorized in writing, and thereupon one
or more new Securities, of authorized denominations and for the same aggregate
principal amount, will be issued to the designated transferee or transferees.

          This Security is issuable only in registered form without coupons in
denominations of $1,000 and any integral multiple thereof.  As provided in the
Indenture and subject to certain limitations therein set forth, Securities are
exchangeable for a like aggregate principal amount of Securities of like tenor
of a different authorized denomination, as requested by the Holder surrendering
the same.

          No service charge shall be made for any such registration of transfer
or exchange, but the Company may require payment of a sum sufficient to cover
any tax or other governmental charge payable in connection therewith.

          Prior to due presentment of this Security for registration of
transfer, the Company, the Trustee and any agent of the Company or the Trustee
may treat the Person in whose name this Security is registered as the owner
hereof for all purposes, whether or not this Security be overdue, and neither
the Company, the Trustee nor any such agent shall be affected by notice to the
contrary.

          Interest on this Security shall be computed on the basis of a 360-day
year of twelve 30-day months.

          The obligations of the Company under the Indenture and this Security
are expressly subordinated to all Senior Indebtedness, in each case to the
extent set forth in Article XIV of the Indenture, and reference is hereby made
to such Indenture for the precise terms of such subordination.

          As provided in the Indenture and subject to certain limitations
therein set forth, the obligations of the Company under the Indenture and this
Security are Guaranteed pursuant to Guarantees endorsed hereon as provided in
the Indenture.  


                                     A-2-8
<PAGE>
 
Each Holder, by holding this Security, agrees to all of the terms and provisions
of said Guarantees. The Indenture provides that each Guarantor shall be released
from its Guaranty upon compliance with certain conditions.

          All terms used in this Security which are defined in the Indenture
shall have the meanings assigned to them in the Indenture.

          The Indenture and this Security shall be governed by and construed in
accordance with the laws of the State of New York, without regard to the
conflicts of laws principles thereof.



                                     A-2-9
<PAGE>
 
                                ASSIGNMENT FORM

If you, the Holder, want to assign this Security, fill in the form below and
have your signature guaranteed:

I (or we) assign and transfer this Security to

________________________________________________________________________________
(Insert assignee's social security or tax ID number)

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
(Print or type assignee's name, address and zip code) and irrevocably appoint

________________________________________________________________________________
agent to transfer this Security on the books of the Company.  The agent may
substitute another to act for such agent.

Date:____________________          Your Signature:____________________________
                                                  (Sign exactly as your name 
                                                  appears on the other side of
                                                  this Security)

                                               By:_____________________________
                                                  NOTICE: To be executed 
                                                  by an executive officer


Signature Guarantee:___________________________________


                                    A-2-10
<PAGE>
 
                      OPTION OF HOLDER TO ELECT PURCHASE

          If you want to elect to have this Security purchased in its entirety
by the Company pursuant to Section 10.13 or 10.14 of the Indenture, check the
applicable box:

     Section 10.13 [_]

     Section 10.14 [_]

          If you want to elect to have only a part of the principal amount of
this Security purchased by the Company pursuant to Section 10.13 or 10.14 of the
Indenture, state the portion of such amount:  $_______________

Dated:                     Your Signature:_____________________________
                                          (Sign exactly as name appears on the
                                          other side of this Security)

Signature Guarantee:____________________________________________
                    (Signature must be guaranteed by a financial 
                    institution that is a member of the Securities 
                    Transfer Agent Medallion Program ("STAMP"), 
                    the Stock Exchange Medallion Program ("SEMP"), 
                    the New York Stock Exchange, Inc.  Medallion 
                    Signature Program ("MSP") or such other 
                    signature guarantee program as may be determined 
                    by the Security Registrar in addition to, or in
                    substitution for, STAMP, SEMP or MSP, all in 
                    accordance with the Securities Exchange Act of 
                    1934, as amended.)


                                    A-2-11
<PAGE>
 
                                                                       EXHIBIT B
                                                                       ---------

                   FORM OF LEGEND FOR BOOK-ENTRY SECURITIES

          Any Global Security authenticated and delivered hereunder shall bear a
legend (which would be in addition to any other legends required in the case of
a Restricted Security) in substantially the following form:

          THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE
HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITORY OR A
NOMINEE OF A DEPOSITORY OR A SUCCESSOR DEPOSITORY.  THIS SECURITY IS NOT
EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE
DEPOSITORY OR ITS NOMINEE EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE
INDENTURE, AND NO TRANSFER OF THIS SECURITY (OTHER THAN A TRANSFER OF THIS
SECURITY AS A WHOLE BY THE DEPOSITORY TO A NOMINEE OF THE DEPOSITORY OR BY A
NOMINEE OF THE DEPOSITORY TO THE DEPOSITORY OR ANOTHER NOMINEE OF THE
DEPOSITORY) MAY BE REGISTERED EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN
THE INDENTURE.

          UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE
OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE COMPANY
OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY
CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO.  OR IN SUCH OTHER
NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS
MADE TO CEDE & CO.  OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.



                                      B-1
<PAGE>
 
                                                                       EXHIBIT C
                                                                       ---------

                      Form of Certificate To Be Delivered
                         in Connection with Transfers
                           Pursuant to Regulation S

State Street Bank and Trust Company
225 Franklin Street
Boston, Massachusetts  02110

          Re: Group Maintenance America Corp.
              (the "Company") 9 3/4% Senior
              Subordinated Notes due 2009
              (the "Securities")

Ladies and Gentlemen:

          In connection with our proposed sale of $___________ aggregate
principal amount of the Securities, we confirm that such sale has been effected
pursuant to and in accordance with Regulation S under the U.S. Securities Act of
1933, as amended (the "Securities Act"), and, accordingly, we represent that:

             (1) the offer of the Securities was not made to a Person in the
     United States;

             (2) either (a) at the time the buy offer was originated, the
     transferee was outside the United States or we and any Person acting on our
     behalf reasonably believed that the transferee was outside the United
     States, or (b) the transaction was executed in, on or through the
     facilities of a designated offshore securities market described in Rule
     902(a) of Regulation S and neither we nor any Person acting on our behalf
     knows that the transaction has been pre-arranged with a buyer in the United
     States;

             (3) no directed selling efforts have been made in the United States
     in contravention of the requirements of Rule 903(b) or Rule 904(b) of
     Regulation S, as applicable;

             (4) the transaction is not part of a plan or scheme to evade the
     registration requirements of the Securities Act;

             (5) we have advised the transferee of the transfer restrictions
     applicable to the Securities;

             (6) if the circumstances set forth in rule 904(c) under the
     Securities Act are applicable, we have complied 


                                      C-1
<PAGE>
 
     with the additional conditions therein, including (if applicable) sending a
     confirmation or other notice stating that the Securities may be offered and
     sold during the distribution compliance period specified in Rule 903(c)(2)
     or (3), as applicable, only in accordance with the provisions of Regulation
     S; pursuant to registration of the Securities under the Securities Act; or
     pursuant to another available exemption from the registration requirements
     under the Securities Act; and

             (7) if the sale is made during a distribution compliance period and
     the provisions of Rule 903(c)(3) are applicable thereto, we confirm that
     such sale has been made in accordance with such provisions.

          You and the Company are entitled to rely upon this letter and are
irrevocably authorized to produce this letter or a copy hereof to any interested
party in any administrative or legal proceedings or official inquiry with
respect to the matters covered hereby.  Terms used in this certificate have the
meanings set forth in Regulation S.

                              Very truly yours,

                              [Name of Transferor]

                              By:
                                 _____________________________
                                 Authorized Signature


                                      C-2

<PAGE>
 

                                                                       EXHIBIT D
                                                                       ---------

              [FORM OF NOTATION ON SECURITY RELATING TO GUARANTY]

                                    GUARANTY

          ________________, a _________________ corporation (the "Guarantor,"
which term includes any successor under the Indenture (the "Indenture") referred
to in the Security upon which this notation is endorsed), hereby unconditionally
and irrevocably guarantees on a senior subordinated basis, jointly and severally
with each other Guarantor of the Securities, to each Holder and to the Trustee
and its successors and assigns (a) the full and prompt payment (within
applicable grace periods) of principal of and interest on the Securities when
due, whether at maturity, by acceleration, by redemption or otherwise, and all
other monetary obligations of the Company under this Indenture and the
Securities and (b) the full and prompt performance within applicable grace
periods of all other obligations of the Company under the Indenture and the
Securities, subject to certain limitations set forth in the Indenture (all the
foregoing being hereinafter collectively called the "Guaranty Obligations").
The Guarantor further agrees that the Guaranty Obligations may be extended or
renewed, in whole or in part, without notice or further assent from such
Guarantor, and that such Guarantor will remain bound under Article XIII of the
Indenture notwithstanding any extension or renewal of any Guaranty Obligation.
Capitalized terms used herein have the meanings assigned to them in the
Indenture unless otherwise indicated.

          Subject to the terms of the Indenture, this Guaranty shall be binding
upon the Guarantor and its successors and assigns and shall inure to the benefit
of the successors and assigns of the Trustee and the Holders and, in the event
of any transfer or assignment of rights by any Holder or the Trustee, the rights
and privileges herein conferred upon that party shall automatically extend to
and be vested in such transferee or assignee, all subject to the terms and
conditions hereof.

          This Guaranty shall not be valid or obligatory for any purpose until
the certificate of authentication on the Security upon which this Guaranty is
noted shall have been executed by the Trustee under the Indenture by the
signature of one of its authorized officers.

          The obligations of the Guarantor to the Holders of Securities and to
the Trustee pursuant to this Guaranty and the 


                                      D-1

<PAGE>
 
Indenture are expressly subordinated to all Guarantor Senior Indebtedness and
senior in right of payment to all Guarantor Subordinated Indebtedness, in each
case to the extent set forth in Section 13.9 and Article XIV of the Indenture,
and reference is hereby made to such Indenture for the precise terms of such
subordination.

          Notwithstanding any other provision of the Indenture or this Guaranty,
under the Indenture and this Guaranty the maximum aggregate amount of the
obligations guaranteed by the Guarantor shall not exceed the maximum amount that
can be guaranteed without rendering the Indenture or this Guaranty, as it
relates to such Guarantor, voidable under applicable federal or state law
relating to fraudulent conveyance or fraudulent transfer.  This Guaranty shall
be governed by the internal laws of the State of New York, without regard to
conflict of laws provisions thereof.

                              [Name of Guarantor]

                              By:
                                 _______________________________
                                 Name:
                                 Title:



                                      D-2

<PAGE>
 
                                                                     EXHIBIT 4.2

                                                                  EXECUTION COPY






                        Group Maintenance America Corp.,
                           the Companies Named Herein

                                      and

                      State Street Bank and Trust Company,
                                    Trustee

                                 ______________



                          First Supplemental Indenture

                           Dated as of March 10, 1999


                                 ______________



                               Up to $200,000,000

                        9 3/4% Senior Subordinated Notes

                              Due January 15, 2009
<PAGE>
 
       FIRST SUPPLEMENTAL INDENTURE, dated as of March 10, 1999, among GROUP
MAINTENANCE AMERICA CORP., a corporation duly organized and existing under the
laws of the State of Texas (herein called the "Company"), having its principal
office at 8 Greenway Plaza, Suite 1500, Houston, Texas 77046, STATE STREET BANK
AND TRUST COMPANY, a bank duly organized and existing under the laws of the
United States (herein called the "Trustee"), and the various subsidiaries of the
Company named herein, as Guarantors.

                            RECITALS OF THE COMPANY

     WHEREAS, the Company has heretofore executed and delivered to the Trustee
its Indenture, dated as of January 22, 1999 (herein called the "Original
Indenture"), to provide for the issuance of an aggregate principal amount of up
to $200,000,000 of the Company's 9 3/4% Senior Subordinated Notes Due January
15, 2009 (the "Notes"), $130,000,000 aggregate principal amount of which are
currently outstanding; and

     WHEREAS, Section 9.1 of the Original Indenture provides that, subject to
certain limitations, without the consent of any holders of the Notes, the
Company, when authorized by a resolution of its Board of Directors, and the
Trustee may at any time and from time to time enter into an indenture or
indentures supplemental to the Original Indenture; and

     WHEREAS, pursuant to Section 10.17 of the Original Indenture, Statewide
Heating & Air Conditioning, Inc., a Delaware corporation ("Statewide"), is to
become a Guarantor under the Original Indenture; and

     WHEREAS, the Company's Board of Directors has duly authorized the substance
of the modifications of the Indenture hereinafter set forth (the "First
Supplemental Indenture") and the execution and delivery of this First
Supplemental Indenture; and

     WHEREAS, the Board of Directors of Statewide has authorized the execution
and delivery of this First Supplemental Indenture; and

     WHEREAS, the Company, the Initial Guarantors (as defined in the Original
Indenture), Statewide and the Trustee desire to execute this First Supplemental
Indenture; and

     WHEREAS, all things necessary to make this First Supplemental Indenture a
valid agreement of Statewide, in accordance with its terms, have been done.

     NOW, THEREFORE, THIS FIRST SUPPLEMENTAL INDENTURE WITNESSETH:
<PAGE>
 
     For and in consideration of the premises, it is mutually covenanted and
agreed, for the equal and proportionate benefit of all Holders of the Notes, as
follows:

     1.   Statewide hereby unconditionally guarantees all of the Company's
obligations under the Securities (as defined in the Original Indenture) and
under the Original Indenture on the terms set forth in the Original Indenture.
Notwithstanding the foregoing, this guarantee shall be automatically and
unconditionally released and discharged (with respect to Statewide) upon the
terms and conditions specified in Section 13.5 of the Original Indenture.

     2.   Capitalized terms used herein but not defined herein shall have the
meanings given to them in the Original Indenture.

     3.   Except as specifically supplemented and amended by this First
Supplemental Indenture, the terms and provisions of the Original Indenture shall
remain in full force and effect.

     4.   The Recitals of the Company preceding Section 1 of this First
Supplemental Indenture are statements of the Company, and the Trustee has no
responsibility for the accuracy or completeness thereof.

     5.   This First Supplemental Indenture shall be governed by, and construed
in accordance with, the law of the State of New York without regard to the
conflicts of laws principles thereof.

     6.   This First Supplemental Indenture may be executed in one or more
counterparts, all of which, taken together, shall constitute one and the same
First Supplemental Indenture.

                                       2
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have caused this First Supplemental
Indenture to be duly executed, all as of the day and year first above written.

                              GROUP MAINTENANCE AMERICA CORP.


                              By:
                                 -------------------------------------------
                                 Name:
                                 Title:


                              STATE STREET BANK AND TRUST COMPANY


                              By:
                                 -------------------------------------------
                                 Name:
                                 Title:

                              Guarantors:

                              A-1 APPLIANCE & AIR CONDITIONING, INC.
                              A-1 MECHANICAL OF LANSING, INC.
                              AA ADVANCE AIR, INC.
                              A-ABC APPLIANCE, INC.
                              A-ABC SERVICES, INC.
                              AA JARL, INC.
                              AIR CONDITIONING ENGINEERS, INC.
                              AIR CONDITIONING, PLUMBING & HEATING SERVICE 
                                CO., INC.
                              AIRCON ENERGY INCORPORATED
                              AIRTRON, INC.
                              AIRTRON OF CENTRAL FLORIDA, INC.
                              ALL SERVICE ELECTRIC, INC.
                              ARKANSAS MECHANICAL SERVICES, INC.
                              ATLANTIC INDUSTRIAL CONSTRUCTORS, INC.
                              BARR ELECTRIC CORP.
                              CALLAHAN ROACH PRODUCTS & PUBLICATIONS, INC.
                              CENTRAL AIR CONDITIONING

                                       3
<PAGE>
 
                              CONTRACTORS, INC.
                              CENTRAL CAROLINA AIR CONDITIONING COMPANY
                              CHARLIE CRAWFORD, INC.
                              CLARK CONVERSE ELECTRIC SERVICE, INC.
                              COLONIAL AIR CONDITIONING COMPANY
                              COMMERCIAL AIR HOLDING COMPANY
                              COMMERCIAL AIR, POWER & CABLE, INC.
                              CONTINENTAL ELECTRICAL CONSTRUCTION CO.
                              COSTNER BROTHERS, INC.
                              DIVCO, INC.
                              DYNAMIC SOFTWARE CORPORATION
                              EVANS SERVICES, INC.
                              THE FARFIELD COMPANY
                              FERGUSON ELECTRIC CORPORATION
                              GENTZLER ELECTRICAL CONTRACTORS, INC.
                              GILBERT MECHANICAL CONTRACTORS, INC.
                              GREGORY ELECTRIC, INC.
                              GROUPMAC HOLDING CORP.
                              GROUPMAC MANAGEMENT CO.
                              HPS PLUMBING SERVICES, INC.
                              HALLMARK AIR CONDITIONING, INC.
                              HUNGERFORD MECHANICAL CORPORATION
                              J.D. STEWARD AIR CONDITIONING, INC.
                              K & N PLUMBING, HEATING AND AIR CONDITIONING, INC.
                              LANEY'S, INC.
                              LINFORD SERVICE CO.
                              MACDONALD-MILLER CO., INC.
                              MACDONALD-MILLER INDUSTRIES, INC.
                              MACDONALD-MILLER OF OREGON, INC.
                              MACDONALD-MILLER SERVICE, INC.
                              MASTERS, INC.
                              MECHANICAL INTERIORS, INC.
                              MERRITT ISLAND AIR & HEAT, INC.
                              NEW CONSTRUCTION AIR CONDITIONING, INC.
                              NORON, INC.

                                       4
<PAGE>
 
                              PACIFIC RIM MECHANICAL CONTRACTORS, INC.
                              PAUL E. SMITH CO., INC.
                              PHOENIX ELECTRIC COMPANY
                              RAY AND CLAUDE GOODWIN, INC.
                              RELIABLE MECHANICAL, INC.
                              ROMANOFF ELECTRIC CORP.
                              SIBLEY SERVICES, INCORPORATED
                              SOUTHEAST MECHANICAL SERVICE, INC.
                              STEPHEN C. POMEROY, INC.
                              STERLING AIR CONDITIONING, INC.
                              SUN PLUMBING, INC.
                              TEAM MECHANICAL, INC.
                              TRINITY CONTRACTORS, INC.
                              UNITED ACQUISITION CORP.
                              VALLEY WIDE PLUMBING AND HEATING, INC.
                              VAN'S COMFORTEMP AIR CONDITIONING, INC.
                              VANTAGE MECHANICAL CONTRACTORS, INC.
                              WADE'S HEATING AND COOLING, INC.
                              WIEGOLD & SONS, INC.
                              WILLIS REFRIGERATION, AIR CONDITIONING &
                                 HEATING, INC.
                              YALE INCORPORATED


                              By:
                                 -------------------------------------------
                              Name:  Darren B. Miller
                              Title: Vice President of each of the foregoing
                                     Guarantors

                              STATEWIDE HEATING & AIR CONDITIONING, INC.

                              By:
                                 -------------------------------------------
                                 Name:
                                 Title:




                                       5

<PAGE>
 
                                                                       EXHIBIT 5



                                 April __, 1999



Group Maintenance America Corp.
8 Greenway Plaza, Suite 1500
Houston, Texas 77046

Ladies and Gentlemen:

We have acted as counsel to Group Maintenance America Corp. (the "Company"), a
Texas corporation, in connection with the offer by the Company to exchange
$1,000 principal amount at final maturity of its 9 3/4% Exchange Senior
Subordinated Notes due 2009 (the "Exchange Notes") for each $1,000 principal
amount at final maturity of its 9 3/4% Senior Subordinated Notes due 2009 (the
"Original Notes"), of which an aggregate of $130,000,000 principal amount is
outstanding (the "Exchange Offer").  The Company is filing with the Securities
and Exchange Commission (the "Commission") a registration statement on Form S-4
with respect to the Exchange Offer (the "Registration Statement"), under the
Securities Act of 1933, as amended (the "Securities Act").

We have examined originals or copies certified by officers of the Company of (a)
the Indenture, dated as of January 22, 1999, as supplemented and amended (the
"Indenture"), by and among the Company, the Guarantors named therein and State
Street Bank and Trust Company, as Trustee (the "Trustee"), pursuant to which the
Original Notes were issued and the Exchange Notes will be issued, (b) the
Articles of Incorporation, as amended, of the Company, (c) the Bylaws of the
Company, (d) certified copies of certain resolutions adopted by the Board of
Directors of the Company, and (e) such other documents and records as we have
deemed necessary and relevant for the purposes hereof.  In addition, we have
relied on certificates of officers of the Company and of public officials and
others as to certain matters of fact relating to this opinion and have made such
investigations of law as we have deemed necessary and relevant as a basis
hereof.  We have assumed the genuineness of all signatures, the authenticity of
all documents and records submitted to us as copies, the conformity to authentic
original documents and records of all documents and records submitted to us as
copies, and the truthfulness of all statements of fact contained therein.  We
have also assumed the due authorization, execution and delivery of the Indenture
by a duly authorized officer of the Trustee.
<PAGE>
 
Group Maintenance America Corp.
April   , 1999
Page 2

Based on the foregoing and subject to the limitations, assumptions and
qualifications set forth herein, and having due regard for such legal
considerations as we deem relevant, we are of the opinion that:

     1. the Company is a corporation duly incorporated, validly existing and in
        good standing under the laws of the State of Texas; and

     2. the Original Notes and the Exchange Notes have been validly authorized
        and issued, and (subject to the Registration Statement becoming
        effective, the Indenture being qualified under the Trust Indenture Act
        of 1939 and any state securities or Blue Sky laws being complied with)
        when (i) the Exchange Notes have been duly executed by duly authorized
        officers of the Company, (ii) the Exchange Notes have been duly
        authenticated by the Trustee under the Indenture, and (iii) the Original
        Notes have been validly tendered and not withdrawn and have been
        received and accepted by the Company, all in accordance with the terms
        of the Exchange Offer as set forth in the Registration Statement, the
        Exchange Notes issued in exchange for the Original Notes in accordance
        with the terms of the Exchange Offer will be validly issued and legally
        binding obligations of the Company entitled to the benefits of the
        Indenture.

We hereby consent to the filing of this opinion with the Commission as Exhibit 5
to the Registration Statement and to the references to our firm under the
heading "Legal Matters" in the Prospectus included in the Registration
Statement.  By giving such consent, we do not admit that we are experts with
respect to any part of the Registration Statement, including this Exhibit,
within the meaning of the term "expert" as used in the Securities Act or the
rules and regulations thereunder.

                              Very truly yours,



                              Bracewell & Patterson, L.L.P.

<PAGE>
 
                                                                       EXHIBIT 8



                                April    , 1999



Group Maintenance America Corp.
8 Greenway Plaza, Suite 1500
Houston, Texas 77046


Ladies and Gentlemen:

We have acted as counsel to Group Maintenance America Corp., a Texas corporation
(the "Company"), in connection with the registration by the Company of its 
9-3/4% Exchange Senior Subordinated Notes due 2009 (the "Exchange Notes").  The
Company has filed with the Securities and Exchange Commission (the "Commission")
a registration statement on Form S-4 (the "Registration Statement") under the
Securities Act of 1933, as amended (the "Securities Act").

We have examined originals or copies of the Registration Statement and such
other documents and records as we have deemed necessary and relevant for the
purposes hereof.  In addition, we have relied on certificates of officers of the
Company and of public officials and others as to certain matters of fact
relating to this opinion and have made such investigations of law as we have
deemed necessary and relevant as a basis hereof.  In such examination and
investigation, we have assumed the genuineness of all signatures, the
authenticity of all documents and records submitted to us as originals, the
conformity to authentic original documents and records of all documents and
records submitted to us as copies and the truthfulness of all statements of fact
contained therein.  We have also assumed the due authorization, execution and
delivery of the Indenture by a duly authorized officer of the Trustee.

Based upon and subject to the foregoing, and having regard for legal
considerations which we deem relevant, we hereby confirm, and adopt as our
opinion, the statements of legal matters contained in the Prospectus included in
the Registration Statement under the caption "Certain Federal Income Tax
Considerations."
<PAGE>
 
Group Maintenance America Corp.
April   , 1999
Page 2

We hereby consent to the filing of this opinion with the Commission as Exhibit 8
to the Registration Statement and to the references to our firm under the
caption "Certain Federal Income Tax Considerations" in the Prospectus included
in the Registration Statement.  By giving such consent, we do not admit that we
are experts with respect to any part of the Registration Statement, including
this Exhibit, within the meaning of the term "expert" as used in the Securities
Act or the rules and regulations issued thereunder.

                              Very truly yours,



                              Bracewell & Patterson, L.L.P.






                                       2

<PAGE>
 
                                                                    EXHIBIT 23.2
 
The Board of Directors
Group Maintenance America Corp.:
 
  We consent to the use of our reports incorporated by reference herein and to
the reference to our firm under the heading "Experts" in this prospectus.
 
KPMG LLP
 
Houston, Texas
April 21, 1999

<PAGE>
 
                               POWER OF ATTORNEY


     KNOW ALL MEN BY THESE PRESENTS, that in connection with the proposed
registration by Group Maintenance America Corp., a Texas corporation (the
"Company"), of (i) $130,000,000 aggregate principal amount of the Company's 
9-3/4% Senior Subordinated Notes due 2009 (the "Notes") and guarantees of the
Notes by the Company's subsidiaries, the undersigned officer or director of the
Company hereby constitutes and appoints Randolph W. Bryant and Darren B. Miller,
and each of them (with full power to each of them to act alone), the
undersigned's true and lawful attorney-in-fact and agent, for the undersigned
and on the undersigned's behalf and in the undersigned's name, place and stead,
in any and all capacities, to sign, execute and file a registration statement
relating to such securities to be filed with the Securities and Exchange
Commission on such Form as, in the opinion of counsel for the Company, is
appropriate, together with all amendments thereto, with all exhibits and any and
all documents required to be filed with respect thereto with any regulatory
authority, granting unto said attorneys, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises in order to effectuate the same as fully to
all intents and purposes as the undersigned might or could do if personally
present, hereby ratifying and confirming all the said attorneys-in-fact and
agents, or either of them, may lawfully do or cause to be done by virtue
thereof.

     IN WITNESS WHEREOF, the undersigned has hereto signed this power of
attorney this ____ day of April, 1999.



                                          /s/ David L. Henninger
                                          -----------------------------
                                          David L. Henninger
<PAGE>
 
                               POWER OF ATTORNEY


     KNOW ALL MEN BY THESE PRESENTS, that in connection with the proposed
registration by Group Maintenance America Corp., a Texas corporation (the
"Company"), of (i) $130,000,000 aggregate principal amount of the Company's 
9-3/4% Senior Subordinated Notes due 2009 (the "Notes") and guarantees of the
Notes by the Company's subsidiaries, the undersigned officer or director of the
Company hereby constitutes and appoints Randolph W. Bryant and Darren B. Miller,
and each of them (with full power to each of them to act alone), the
undersigned's true and lawful attorney-in-fact and agent, for the undersigned
and on the undersigned's behalf and in the undersigned's name, place and stead,
in any and all capacities, to sign, execute and file a registration statement
relating to such securities to be filed with the Securities and Exchange
Commission on such Form as, in the opinion of counsel for the Company, is
appropriate, together with all amendments thereto, with all exhibits and any and
all documents required to be filed with respect thereto with any regulatory
authority, granting unto said attorneys, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises in order to effectuate the same as fully to
all intents and purposes as the undersigned might or could do if personally
present, hereby ratifying and confirming all the said attorneys-in-fact and
agents, or either of them, may lawfully do or cause to be done by virtue
thereof.

     IN WITNESS WHEREOF, the undersigned has hereto signed this power of
attorney this ____ day of April, 1999.



                                   /s/ Chester J. Jachimiec
                                   --------------------------------
                                   Chester J. Jachimiec
<PAGE>
 
                               POWER OF ATTORNEY


     KNOW ALL MEN BY THESE PRESENTS, that in connection with the proposed
registration by Group Maintenance America Corp., a Texas corporation (the
"Company"), of (i) $130,000,000 aggregate principal amount of the Company's 
9-3/4% Senior Subordinated Notes due 2009 (the "Notes") and guarantees of the
Notes by the Company's subsidiaries, the undersigned officer or director of the
Company hereby constitutes and appoints Randolph W. Bryant and Darren B. Miller,
and each of them (with full power to each of them to act alone), the
undersigned's true and lawful attorney-in-fact and agent, for the undersigned
and on the undersigned's behalf and in the undersigned's name, place and stead,
in any and all capacities, to sign, execute and file a registration statement
relating to such securities to be filed with the Securities and Exchange
Commission on such Form as, in the opinion of counsel for the Company, is
appropriate, together with all amendments thereto, with all exhibits and any and
all documents required to be filed with respect thereto with any regulatory
authority, granting unto said attorneys, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises in order to effectuate the same as fully to
all intents and purposes as the undersigned might or could do if personally
present, hereby ratifying and confirming all the said attorneys-in-fact and
agents, or either of them, may lawfully do or cause to be done by virtue
thereof.

     IN WITNESS WHEREOF, the undersigned has hereto signed this power of
attorney this ____ day of April, 1999.



                                   /s/ Timothy Johnston
                                   --------------------------------
                                   Timothy Johnston
<PAGE>
 
                               POWER OF ATTORNEY


     KNOW ALL MEN BY THESE PRESENTS, that in connection with the proposed
registration by Group Maintenance America Corp., a Texas corporation (the
"Company"), of (i) $130,000,000 aggregate principal amount of the Company's 
9-3/4% Senior Subordinated Notes due 2009 (the "Notes") and guarantees of the
Notes by the Company's subsidiaries, the undersigned officer or director of the
Company hereby constitutes and appoints Randolph W. Bryant and Darren B. Miller,
and each of them (with full power to each of them to act alone), the
undersigned's true and lawful attorney-in-fact and agent, for the undersigned
and on the undersigned's behalf and in the undersigned's name, place and stead,
in any and all capacities, to sign, execute and file a registration statement
relating to such securities to be filed with the Securities and Exchange
Commission on such Form as, in the opinion of counsel for the Company, is
appropriate, together with all amendments thereto, with all exhibits and any and
all documents required to be filed with respect thereto with any regulatory
authority, granting unto said attorneys, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises in order to effectuate the same as fully to
all intents and purposes as the undersigned might or could do if personally
present, hereby ratifying and confirming all the said attorneys-in-fact and
agents, or either of them, may lawfully do or cause to be done by virtue
thereof.

     IN WITNESS WHEREOF, the undersigned has hereto signed this power of
attorney this ____ day of April, 1999.



                                   /s/ Andrew Jeffrey Kelly
                                   --------------------------------
                                   Andrew Jeffrey Kelly
<PAGE>
 
                               POWER OF ATTORNEY


     KNOW ALL MEN BY THESE PRESENTS, that in connection with the proposed
registration by Group Maintenance America Corp., a Texas corporation (the
"Company"), of (i) $130,000,000 aggregate principal amount of the Company's 
9-3/4% Senior Subordinated Notes due 2009 (the "Notes") and guarantees of the
Notes by the Company's subsidiaries, the undersigned officer or director of the
Company hereby constitutes and appoints Randolph W. Bryant and Darren B. Miller,
and each of them (with full power to each of them to act alone), the
undersigned's true and lawful attorney-in-fact and agent, for the undersigned
and on the undersigned's behalf and in the undersigned's name, place and stead,
in any and all capacities, to sign, execute and file a registration statement
relating to such securities to be filed with the Securities and Exchange
Commission on such Form as, in the opinion of counsel for the Company, is
appropriate, together with all amendments thereto, with all exhibits and any and
all documents required to be filed with respect thereto with any regulatory
authority, granting unto said attorneys, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises in order to effectuate the same as fully to
all intents and purposes as the undersigned might or could do if personally
present, hereby ratifying and confirming all the said attorneys-in-fact and
agents, or either of them, may lawfully do or cause to be done by virtue
thereof.

     IN WITNESS WHEREOF, the undersigned has hereto signed this power of
attorney this ____ day of April, 1999.



                                   /s/ Donald L. Luke
                                   --------------------------------
                                   Donald L. Luke
<PAGE>
 
                               POWER OF ATTORNEY


     KNOW ALL MEN BY THESE PRESENTS, that in connection with the proposed
registration by Group Maintenance America Corp., a Texas corporation (the
"Company"), of (i) $130,000,000 aggregate principal amount of the Company's 
9-3/4% Senior Subordinated Notes due 2009 (the "Notes") and guarantees of the
Notes by the Company's subsidiaries, the undersigned officer or director of the
Company hereby constitutes and appoints Randolph W. Bryant and Darren B. Miller,
and each of them (with full power to each of them to act alone), the
undersigned's true and lawful attorney-in-fact and agent, for the undersigned
and on the undersigned's behalf and in the undersigned's name, place and stead,
in any and all capacities, to sign, execute and file a registration statement
relating to such securities to be filed with the Securities and Exchange
Commission on such Form as, in the opinion of counsel for the Company, is
appropriate, together with all amendments thereto, with all exhibits and any and
all documents required to be filed with respect thereto with any regulatory
authority, granting unto said attorneys, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises in order to effectuate the same as fully to
all intents and purposes as the undersigned might or could do if personally
present, hereby ratifying and confirming all the said attorneys-in-fact and
agents, or either of them, may lawfully do or cause to be done by virtue
thereof.

     IN WITNESS WHEREOF, the undersigned has hereto signed this power of
attorney this ____ day of April, 1999.



                                   /s/ Thomas B. McDade
                                   --------------------------------
                                   Thomas B. McDade
<PAGE>
 
                               POWER OF ATTORNEY


     KNOW ALL MEN BY THESE PRESENTS, that in connection with the proposed
registration by Group Maintenance America Corp., a Texas corporation (the
"Company"), of (i) $130,000,000 aggregate principal amount of the Company's 
9-3/4% Senior Subordinated Notes due 2009 (the "Notes") and guarantees of the
Notes by the Company's subsidiaries, the undersigned officer or director of the
Company hereby constitutes and appoints Randolph W. Bryant and Darren B. Miller,
and each of them (with full power to each of them to act alone), the
undersigned's true and lawful attorney-in-fact and agent, for the undersigned
and on the undersigned's behalf and in the undersigned's name, place and stead,
in any and all capacities, to sign, execute and file a registration statement
relating to such securities to be filed with the Securities and Exchange
Commission on such Form as, in the opinion of counsel for the Company, is
appropriate, together with all amendments thereto, with all exhibits and any and
all documents required to be filed with respect thereto with any regulatory
authority, granting unto said attorneys, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises in order to effectuate the same as fully to
all intents and purposes as the undersigned might or could do if personally
present, hereby ratifying and confirming all the said attorneys-in-fact and
agents, or either of them, may lawfully do or cause to be done by virtue
thereof.

     IN WITNESS WHEREOF, the undersigned has hereto signed this power of
attorney this ____ day of April, 1999.



                                   /s/ Lucian L. Morrison
                                   --------------------------------
                                   Lucian L. Morrison
<PAGE>
 
                               POWER OF ATTORNEY


     KNOW ALL MEN BY THESE PRESENTS, that in connection with the proposed
registration by Group Maintenance America Corp., a Texas corporation (the
"Company"), of (i) $130,000,000 aggregate principal amount of the Company's 
9-3/4% Senior Subordinated Notes due 2009 (the "Notes") and guarantees of the
Notes by the Company's subsidiaries, the undersigned officer or director of the
Company hereby constitutes and appoints Randolph W. Bryant and Darren B. Miller,
and each of them (with full power to each of them to act alone), the
undersigned's true and lawful attorney-in-fact and agent, for the undersigned
and on the undersigned's behalf and in the undersigned's name, place and stead,
in any and all capacities, to sign, execute and file a registration statement
relating to such securities to be filed with the Securities and Exchange
Commission on such Form as, in the opinion of counsel for the Company, is
appropriate, together with all amendments thereto, with all exhibits and any and
all documents required to be filed with respect thereto with any regulatory
authority, granting unto said attorneys, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises in order to effectuate the same as fully to
all intents and purposes as the undersigned might or could do if personally
present, hereby ratifying and confirming all the said attorneys-in-fact and
agents, or either of them, may lawfully do or cause to be done by virtue
thereof.

     IN WITNESS WHEREOF, the undersigned has hereto signed this power of
attorney this ____ day of April, 1999.



                                   /s/ Robert Munson, III
                                   --------------------------------
                                   Robert Munson, III
<PAGE>
 
                               POWER OF ATTORNEY


     KNOW ALL MEN BY THESE PRESENTS, that in connection with the proposed
registration by Group Maintenance America Corp., a Texas corporation (the
"Company"), of (i) $130,000,000 aggregate principal amount of the Company's 
9-3/4% Senior Subordinated Notes due 2009 (the "Notes") and guarantees of the
Notes by the Company's subsidiaries, the undersigned officer or director of the
Company hereby constitutes and appoints Randolph W. Bryant and Darren B. Miller,
and each of them (with full power to each of them to act alone), the
undersigned's true and lawful attorney-in-fact and agent, for the undersigned
and on the undersigned's behalf and in the undersigned's name, place and stead,
in any and all capacities, to sign, execute and file a registration statement
relating to such securities to be filed with the Securities and Exchange
Commission on such Form as, in the opinion of counsel for the Company, is
appropriate, together with all amendments thereto, with all exhibits and any and
all documents required to be filed with respect thereto with any regulatory
authority, granting unto said attorneys, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises in order to effectuate the same as fully to
all intents and purposes as the undersigned might or could do if personally
present, hereby ratifying and confirming all the said attorneys-in-fact and
agents, or either of them, may lawfully do or cause to be done by virtue
thereof.

     IN WITNESS WHEREOF, the undersigned has hereto signed this power of
attorney this ____ day of April, 1999.



                                   /s/ James P. Norris
                                   --------------------------------
                                   James P. Norris
<PAGE>
 
                               POWER OF ATTORNEY


     KNOW ALL MEN BY THESE PRESENTS, that in connection with the proposed
registration by Group Maintenance America Corp., a Texas corporation (the
"Company"), of (i) $130,000,000 aggregate principal amount of the Company's 
9-3/4% Senior Subordinated Notes due 2009 (the "Notes") and guarantees of the
Notes by the Company's subsidiaries, the undersigned officer or director of the
Company hereby constitutes and appoints Randolph W. Bryant and Darren B. Miller,
and each of them (with full power to each of them to act alone), the
undersigned's true and lawful attorney-in-fact and agent, for the undersigned
and on the undersigned's behalf and in the undersigned's name, place and stead,
in any and all capacities, to sign, execute and file a registration statement
relating to such securities to be filed with the Securities and Exchange
Commission on such Form as, in the opinion of counsel for the Company, is
appropriate, together with all amendments thereto, with all exhibits and any and
all documents required to be filed with respect thereto with any regulatory
authority, granting unto said attorneys, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises in order to effectuate the same as fully to
all intents and purposes as the undersigned might or could do if personally
present, hereby ratifying and confirming all the said attorneys-in-fact and
agents, or either of them, may lawfully do or cause to be done by virtue
thereof.

     IN WITNESS WHEREOF, the undersigned has hereto signed this power of
attorney this ____ day of April, 1999.



                                   /s/ Fredric J. Sigmund
                                   --------------------------------
                                   Fredric J. Sigmund
<PAGE>
 
                               POWER OF ATTORNEY


     KNOW ALL MEN BY THESE PRESENTS, that in connection with the proposed
registration by Group Maintenance America Corp., a Texas corporation (the
"Company"), of (i) $130,000,000 aggregate principal amount of the Company's 
9-3/4% Senior Subordinated Notes due 2009 (the "Notes") and guarantees of the
Notes by the Company's subsidiaries, the undersigned officer or director of the
Company hereby constitutes and appoints Randolph W. Bryant and Darren B. Miller,
and each of them (with full power to each of them to act alone), the
undersigned's true and lawful attorney-in-fact and agent, for the undersigned
and on the undersigned's behalf and in the undersigned's name, place and stead,
in any and all capacities, to sign, execute and file a registration statement
relating to such securities to be filed with the Securities and Exchange
Commission on such Form as, in the opinion of counsel for the Company, is
appropriate, together with all amendments thereto, with all exhibits and any and
all documents required to be filed with respect thereto with any regulatory
authority, granting unto said attorneys, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises in order to effectuate the same as fully to
all intents and purposes as the undersigned might or could do if personally
present, hereby ratifying and confirming all the said attorneys-in-fact and
agents, or either of them, may lawfully do or cause to be done by virtue
thereof.

     IN WITNESS WHEREOF, the undersigned has hereto signed this power of
attorney this ____ day of April, 1999.



                                   /s/ John M. Sullivan
                                   --------------------------------
                                   John M. Sullivan
<PAGE>
 
                               POWER OF ATTORNEY


     KNOW ALL MEN BY THESE PRESENTS, that in connection with the proposed
registration by Group Maintenance America Corp., a Texas corporation (the
"Company"), of (i) $130,000,000 aggregate principal amount of the Company's 
9-3/4% Senior Subordinated Notes due 2009 (the "Notes") and guarantees of the
Notes by the Company's subsidiaries, the undersigned officer or director of the
Company hereby constitutes and appoints Randolph W. Bryant and Darren B. Miller,
and each of them (with full power to each of them to act alone), the
undersigned's true and lawful attorney-in-fact and agent, for the undersigned
and on the undersigned's behalf and in the undersigned's name, place and stead,
in any and all capacities, to sign, execute and file a registration statement
relating to such securities to be filed with the Securities and Exchange
Commission on such Form as, in the opinion of counsel for the Company, is
appropriate, together with all amendments thereto, with all exhibits and any and
all documents required to be filed with respect thereto with any regulatory
authority, granting unto said attorneys, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises in order to effectuate the same as fully to
all intents and purposes as the undersigned might or could do if personally
present, hereby ratifying and confirming all the said attorneys-in-fact and
agents, or either of them, may lawfully do or cause to be done by virtue
thereof.

     IN WITNESS WHEREOF, the undersigned has hereto signed this power of
attorney this ____ day of April, 1999.



                                   /s/ James D. Weaver
                                   --------------------------------
                                   James D. Weaver
<PAGE>
 
                               POWER OF ATTORNEY


     KNOW ALL MEN BY THESE PRESENTS, that in connection with the proposed
registration by Group Maintenance America Corp., a Texas corporation (the
"Company"), of (i) $130,000,000 aggregate principal amount of the Company's 
9-3/4% Senior Subordinated Notes due 2009 (the "Notes") and guarantees of the
Notes by the Company's subsidiaries, the undersigned officer or director of the
Company hereby constitutes and appoints Randolph W. Bryant and Darren B. Miller,
and each of them (with full power to each of them to act alone), the
undersigned's true and lawful attorney-in-fact and agent, for the undersigned
and on the undersigned's behalf and in the undersigned's name, place and stead,
in any and all capacities, to sign, execute and file a registration statement
relating to such securities to be filed with the Securities and Exchange
Commission on such Form as, in the opinion of counsel for the Company, is
appropriate, together with all amendments thereto, with all exhibits and any and
all documents required to be filed with respect thereto with any regulatory
authority, granting unto said attorneys, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises in order to effectuate the same as fully to
all intents and purposes as the undersigned might or could do if personally
present, hereby ratifying and confirming all the said attorneys-in-fact and
agents, or either of them, may lawfully do or cause to be done by virtue
thereof.

     IN WITNESS WHEREOF, the undersigned has hereto signed this power of
attorney this ____ day of April, 1999.



                                   /s/ William M. Witz
                                   --------------------------------
                                   William M. Witz

<PAGE>
 
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C.  20549


                                    FORM T-1
                                   _________

                       STATEMENT OF ELIGIBILITY UNDER THE
                        TRUST INDENTURE ACT OF 1939 OF A
                    CORPORATION DESIGNATED TO ACT AS TRUSTEE

                Check if an Application to Determine Eligibility
                   of a Trustee Pursuant to Section 305(b)(2)

                      STATE STREET BANK AND TRUST COMPANY
              (Exact name of trustee as specified in its charter)

            Massachusetts                                       04-1867445
  (Jurisdiction of incorporation or                          (I.R.S. Employer
organization if not a U.S. national bank)                   Identification No.)

         225 Franklin Street, Boston, Massachusetts          02110
          (Address of principal executive offices)         (Zip Code)

  Maureen Scannell Bateman, Esq. Executive Vice President and General Counsel
               225 Franklin Street, Boston, Massachusetts  02110
                                 (617) 654-3253
           (Name, address and telephone number of agent for service)

                        GROUP MAINTENANCE AMERICA CORP.
              (Exact name of obligor as specified in its charter)

            TEXAS                                         76-0535259
(State or other jurisdiction of                       (I.R.S. Employer
incorporation or organization)                       Identification No.)

                          8 GREENWAY PLAZA, SUITE 1500
                               HOUSTON, TX 77046
              (Address of principal executive offices)  (Zip Code)

                   9 3/4%  SENIOR SUBORDINATED NOTES DUE 2009
                        (Title of indenture securities)
<PAGE>
 
                                    GENERAL

ITEM 1.  GENERAL INFORMATION.

     FURNISH THE FOLLOWING INFORMATION AS TO THE TRUSTEE:

     (a)  NAME AND ADDRESS OF EACH EXAMINING OR SUPERVISORY AUTHORITY TO WHICH
IT IS SUBJECT.

          Department of Banking and Insurance of The Commonwealth of
          Massachusetts, 100 Cambridge Street, Boston, Massachusetts.

          Board of Governors of the Federal Reserve System, Washington, D.C.,
          Federal Deposit Insurance Corporation, Washington, D.C.
 
     (b)  WHETHER IT IS AUTHORIZED TO EXERCISE CORPORATE TRUST POWERS.

          Trustee is authorized to exercise corporate trust powers.

ITEM 2.  AFFILIATIONS WITH OBLIGOR.

     IF THE OBLIGOR IS AN AFFILIATE OF THE TRUSTEE, DESCRIBE EACH SUCH
AFFILIATION.

          The obligor is not an affiliate of the trustee or of its parent, State
          Street Corporation.

          (See note on page 2.)

ITEM 3. THROUGH ITEM 15.  NOT APPLICABLE.

ITEM 16.  LIST OF EXHIBITS.

     LIST BELOW ALL EXHIBITS FILED AS PART OF THIS STATEMENT OF ELIGIBILITY.

     1.   A COPY OF THE ARTICLES OF ASSOCIATION OF THE TRUSTEE AS NOW IN EFFECT.

          A copy of the Articles of Association of the trustee, as now in
          effect, is on file with the Securities and Exchange Commission as
          Exhibit 1 to Amendment No. 1 to the Statement of Eligibility and
          Qualification of Trustee (Form T-1) filed with the Registration
          Statement of Morse Shoe, Inc. (File No. 22-17940) and is incorporated
          herein by reference thereto.

     2.   A COPY OF THE CERTIFICATE OF AUTHORITY OF THE TRUSTEE TO COMMENCE
BUSINESS, IF NOT CONTAINED IN THE   ARTICLES OF ASSOCIATION.

          A copy of a Statement from the Commissioner of Banks of Massachusetts
          that no certificate of authority for the trustee to commence business
          was necessary or issued is on file with the Securities and Exchange
          Commission as Exhibit 2 to Amendment No. 1 to the Statement of
          Eligibility and Qualification of Trustee (Form T-1) filed with the
          Registration Statement of Morse Shoe, Inc. (File No. 22-17940) and is
          incorporated herein by reference thereto.
 
     3. A COPY OF THE AUTHORIZATION OF THE TRUSTEE TO EXERCISE CORPORATE TRUST
POWERS, IF SUCH AUTHORIZATION IS NOT CONTAINED IN THE DOCUMENTS SPECIFIED IN
PARAGRAPH (1) OR (2), ABOVE.

          A copy of the authorization of the trustee to exercise corporate trust
          powers is on file with the Securities and Exchange Commission as
          Exhibit 3 to Amendment No. 1 to the Statement of Eligibility and
          Qualification of Trustee (Form T-1) filed with the Registration
          Statement of Morse Shoe, Inc. (File No. 22-17940) and is incorporated
          herein by reference thereto.

     4.   A COPY OF THE EXISTING BY-LAWS OF THE TRUSTEE, OR INSTRUMENTS
CORRESPONDING THERETO.

          A copy of the by-laws of the trustee, as now in effect, is on file
          with the Securities and Exchange Commission as Exhibit 4 to the
          Statement of Eligibility and Qualification of Trustee (Form T-1) filed
          with the Registration Statement of Eastern Edison Company 
          (File No. 33-37823) and is incorporated herein by reference thereto.


                                       1
<PAGE>
 
     5.   A COPY OF EACH INDENTURE REFERRED TO IN ITEM 4. IF THE OBLIGOR IS IN
DEFAULT.

          Not applicable.

     6.   THE CONSENTS OF UNITED STATES INSTITUTIONAL TRUSTEES REQUIRED BY
SECTION 321(b) OF THE ACT.

          The consent of the trustee required by Section 321(b) of the Act is
          annexed hereto as Exhibit 6 and made a part hereof.

     7.   A COPY OF THE LATEST REPORT OF CONDITION OF THE TRUSTEE PUBLISHED
PURSUANT TO LAW OR THE REQUIREMENTS OF  ITS SUPERVISING OR EXAMINING AUTHORITY.

          A copy of the latest report of condition of the trustee published
          pursuant to law or the requirements of its supervising or examining
          authority is annexed hereto as Exhibit 7 and made a part hereof.


                                     NOTES

     In answering any item of this Statement of Eligibility  which relates to
matters peculiarly within the knowledge of the obligor or any underwriter for
the obligor, the trustee has relied upon information furnished to it by the
obligor and the underwriters, and the trustee disclaims responsibility for the
accuracy or completeness of such information.

     The answer furnished to Item 2. of this statement will be amended, if
necessary, to reflect any facts which differ from those stated and which would
have been required to be stated if known at the date hereof.



                                   SIGNATURE


   Pursuant to the requirements of the Trust Indenture Act of 1939, as amended,
the trustee, State Street Bank and Trust Company, a corporation organized and
existing under the laws of The Commonwealth of Massachusetts, has duly caused
this statement of eligibility to be signed on its behalf by the undersigned,
thereunto duly authorized, all in the City of Hartford and The State of
Connecticut, on the 20th of April 1999.


                                     STATE STREET BANK AND TRUST COMPANY


                                     By:  ______________________________________
                                             NAME: MICHAEL M. HOPKINS
                                             TITLE: VICE PRESIDENT

                                       2
<PAGE>
 
                                   EXHIBIT 6


                             CONSENT OF THE TRUSTEE

   Pursuant to the requirements of Section 321(b) of the Trust Indenture Act of
1939, as amended, in connection with the proposed issuance by Group Maintenance
America Corp. of its 9 3/4% Senior Subordinated Notes due 2009, we hereby
consent that reports of examination by Federal, State, Territorial or District
authorities may be furnished by such authorities to the Securities and Exchange
Commission upon request therefor.

                                     STATE STREET BANK AND TRUST COMPANY


                                     By:  ______________________________________
                                             NAME: MICHAEL M. HOPKINS
                                             TITLE: VICE PRESIDENT

Dated:  April 20, 1999

                                       3
<PAGE>
 
                                   EXHIBIT 7

Consolidated Report of Condition of State Street Bank and Trust Company,
Massachusetts and foreign and domestic subsidiaries, a state banking institution
organized and operating under the banking laws of this commonwealth and a member
of the Federal Reserve System, at the close of business December 31, 1998,
published in accordance with a call made by the Federal Reserve Bank of this
District pursuant to the provisions of the Federal Reserve Act and in accordance
with a call made by the Commissioner of Banks under General Laws, Chapter 172,
Section 22(a).

<TABLE>
<CAPTION>
 
                                                                                                                    Thousands of
ASSETS                                                                                                                Dollars    
<S>                                                                                                                  <C>
Cash and balances due from depository institutions:
     Noninterest-bearing balances and currency and coin...........................................................    1,209,293
     Interest-bearing balances....................................................................................   12,007,895
Securities........................................................................................................    9,705,731
Federal funds sold and securities purchased under agreements to resell in domestic offices of the bank and 
     its Edge subsidiary..........................................................................................    9,734,476
Loans and lease financing receivables:
     Loans and leases, net of unearned income ...........    6,973,125
     Allowance for loan and lease losses.................       84,308
     Allocated transfer risk reserve.....................            0
     Loans and leases, net of unearned income and allowances......................................................    6,888,817
Assets held in trading accounts...................................................................................   1, 574,999
Premises and fixed assets.........................................................................................      523,514
Other real estate owned...........................................................................................            0
Investments in unconsolidated subsidiaries........................................................................          612
Customers' liability to this bank on acceptances outstanding......................................................       47,334
Intangible assets.................................................................................................      212,743
Other assets......................................................................................................    1,279,224
                                                                                                                     ----------
Total assets......................................................................................................   43,184,638
                                                                                                                     ==========
LIABILITIES

Deposits:
     In domestic offices..........................................................................................   10,852,862
          Noninterest-bearing............................    8,331,830
          Interest-bearing...............................    2,521,032
     In foreign offices and Edge subsidiary.......................................................................   16,761,573
          Noninterest-bearing............................       83,010
          Interest-bearing...............................   16,678,563
Federal funds purchased and securities sold under agreements to repurchase in domestic offices of the bank and
     of its Edge subsidiary.......................................................................................   10,041,324
Demand notes issued to the U.S. Treasury..........................................................................      108,420
                 Trading liabilities..............................................................................    1,240,938
Other borrowed money..............................................................................................      322,331
Subordinated notes and debentures.................................................................................            0
Bank's liability on acceptances executed and outstanding..........................................................       47,334
Other liabilities.................................................................................................    1,126,058
Total liabilities.................................................................................................   40,500,840
                                                                                                                     ----------
EQUITY CAPITAL
Perpetual preferred stock and related surplus.....................................................................            0
Common stock......................................................................................................       29,931
Surplus...........................................................................................................      468,511
Undivided profits and capital reserves/Net unrealized holding gains (losses)......................................    2,164,055
                 Net unrealized holding gains (losses) on available-for-sale securities...........................       21,638
Cumulative foreign currency translation adjustments...............................................................         (337)
Total equity capital..............................................................................................    2,683,798
                                                                                                                     ----------
Total liabilities and equity capital..............................................................................   43,184,638
                                                                                                                     ----------
</TABLE>
                                       4
<PAGE>
 
I, Rex S. Schuette, Senior Vice President and Comptroller of the above named
bank do hereby declare that this Report of Condition has been prepared in
conformance with the instructions issued by the Board of Governors of the
Federal Reserve System and is true to the best of my knowledge and belief.

                                     Rex S. Schuette


We, the undersigned directors, attest to the correctness of this Report of
Condition and declare that it has been examined by us and to the best of our
knowledge and belief has been prepared in conformance with the instructions
issued by the Board of Governors of the Federal Reserve System and is true and
correct.

                                     David A. Spina
                                     Marshall N. Carter
                                     Truman S. Casner

                                       5


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