AMERICAN TOWER CORP /MA/
8-K, EX-1.1, 2000-06-23
COMMUNICATIONS SERVICES, NEC
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                                                                     EXHIBIT 1.1


                           AMERICAN TOWER CORPORATION

               Debt Securities, Preferred Stock, Depositary Shares
                        Class A Common Stock and Warrants

                             UNDERWRITING AGREEMENT


         1.  Introductory.  American Tower Corporation,  a Delaware  corporation
("Company"),  proposes  to  issue  and sell  from  time to time  certain  of its
unsecured debt securities,  preferred stock,  depositary shares,  Class A Common
Stock  ("Common  Stock") and  warrants and certain  stockholders  of the Company
("Selling Stockholders") may sell Common Stock registered under the registration
statements referred to in Section 2(a) (collectively,  "Registered Securities").
The Registered  Securities  constituting  senior debt  securities will be issued
under the Indenture  identified in the Terms Agreement  referred to in Section 3
("Senior  Indenture"),  in one or  more  series,  which  series  may  vary as to
interest  rates,  maturities,  redemption  provisions,  selling prices and other
terms. The Registered Securities constituting  subordinated debt securities will
be issued under the Indenture  identified in the Terms Agreement  referred to in
Section 3 (the "Subordinated Indenture", and together with the Senior Indenture,
the "Indentures" or, each, an "Indenture"),  in one or more series, which series
may vary as to interest rates, maturities, redemption provisions, selling prices
and other terms. The Registered Securities  constituting  preferred stock may be
issued  in one or more  series,  which  series  may vary as to  dividend  rates,
redemption provisions, selling prices and other terms. The Registered Securities
constituting  depositary  shares will be issued by the Depositary  identified in
the  Terms  Agreement  referred  to in  Section 3 (the  "Depositary")  under the
deposit  agreement  identified in the Terms  Agreement  referred to in Section 3
("Deposit  Agreement"),  in one or more series, each representing an interest in
shares of the Company's preferred stock. The Registered Securities  constituting
warrants  will be  issued  under a  warrant  agreement  identified  in the Terms
Agreement  referred to in Section 3 ("Warrant  Agreement"),  between the Company
and the Warrant Agent identified in the Terms Agreement referred to in Section 3
(the  "Warrant  Agent"),  in one or more  series,  which  series  may vary as to
securities or other property  purchasable,  expiration  dates,  exercise  dates,
selling prices,  exercise prices and other terms. Particular series or offerings
of Registered  Securities will be sold pursuant to a Terms Agreement referred to
in Section 3, for resale in accordance with terms of offering  determined at the
time of sale.

         The Registered Securities involved in any such offering are hereinafter
referred to as the "Offered  Securities";  provided,  however, that if the Terms
Agreement provides for an over-allotment option ("Over-Allotment  Option"), then
the Registered  Securities  involved in any such offering and to be purchased by
the  Underwriters are hereinafter  referred to as the "Firm Offered  Securities"
and any  Registered  Securities  involved  in any  such  offering  which  may be
purchased pursuant to the Over-Allotment  Option are hereinafter  referred to as
the "Optional Offered Securities";  provided,  further,  however,  that the Firm
Offered Securities and the Optional Offered  Securities are herein  collectively
referred  to as the  "Offered  Securities".  The  firm or firms  which  agree to
purchase   the  Offered   Securities   are   hereinafter   referred  to  as  the
"Underwriters" of such securities,  and the representative or representatives of
the Underwriters,  if any, specified in a Terms Agreement referred to in Section
3 are hereinafter referred to as the "Representatives";  provided, however, that
if the Terms Agreement does not specify any  representative of the Underwriters,
the term  "Representatives",  as used in this Agreement  (other than in Sections
2(b),  5(d)  and 6 and the  second  sentence  of  Section  3),  shall  mean  the
Underwriters.

                                       1
<PAGE>

         Subsidiaries of the Company have entered into a Credit Agreement, dated
as of January 6, 2000,  among ATC Teleports,  Inc.,  American  Towers,  Inc. and
American  Tower  L.P.,  respectively,  and  Toronto  Dominion  (Texas)  Inc.  as
Administrative  Agent, and the other lenders under such agreement (as heretofore
amended, the "Credit Agreement").

         2.  Representations  and  Warranties  of the  Company  and the  Selling
Stockholders,  if any. (a) The Company,  as of the date of each Terms  Agreement
referred to in Section 3,  represents  and warrants  to, and agrees  with,  each
Underwriter that:

                  (i) A registration statement (No. 333-37988),  relating to the
         Registered  Securities  to be  issued  and  sold  by the  Company  (the
         "Company  Registration  Statement"),  and, if so indicated in the Terms
         Agreement,  a  registration  statement,   relating  to  the  Registered
         Securities to be sold by the Selling Stockholders, if any (the "Selling
         Stockholder  Registration  Statement"),  including a prospectus,  which
         relates to the  Registered  Securities  under the Company  Registration
         Statement and the Registered  Securities under the Selling  Stockholder
         Registration Statement pursuant to Rule 429 under the Securities Act of
         1933  ("Act"),  have  been  filed  with  the  Securities  and  Exchange
         Commission  ("Commission")  and  have  become  effective.  The  Company
         Registration  Statement,  as amended at the time of any Terms Agreement
         referred  to in Section  3, and the  Selling  Stockholder  Registration
         Statement,  as may  be  amended  at the  time  of any  Terms  Agreement
         referred to in Section 3, are hereinafter  collectively  referred to as
         the  "Registration  Statement",  and the  prospectus  included  in such
         Registration Statement, as supplemented as contemplated by Section 3 to
         reflect  the  terms  of  the  Offered  Securities  (if  they  are  debt
         securities,  preferred  stock,  depositary  shares or warrants) and the
         terms of the  offering of the Offered  Securities,  as first filed with
         the  Commission  pursuant to and in accordance  with Rule 424(b) ("Rule
         424(b)")  under  the  Act,  including  all  material   incorporated  by
         reference therein, is hereinafter  referred to as the "Prospectus".  No
         document  has been or will be  prepared or  distributed  in reliance on
         Rule 434 under the Act.

                  (ii)  On the  effective  date of the  registration  statements
         relating to the Registered  Securities,  such  registration  statements
         conformed,  to the  extent  applicable  in  the  case  of  the  Selling
         Stockholder Registration Statement, in all respects to the requirements
         of the Act, the Trust Indenture Act of 1939 ("Trust Indenture Act") and
         the rules and regulations of the Commission  ("Rules and  Regulations")
         and did not include any untrue  statement of a material fact or omit to
         state any material fact  required to be stated  therein or necessary to
         make the  statements  therein not  misleading,  and on the date of each
         Terms Agreement  referred to in Section 3, the  Registration  Statement
         and  the  Prospectus  will  conform  in all  material  respects  to the
         requirements  of the Act,  the  Trust  Indenture  Act and the Rules and
         Regulations, and the Registration Statement will not include any untrue
         statement  of a  material  fact or  omit to  state  any  material  fact
         required  to be stated  therein  or  necessary  to make the  statements
         therein not misleading  and the Prospectus  will not include any untrue
         statement  of a  material  fact or  omit to  state  any  material  fact
         required  to be stated  therein  or  necessary  to make the  statements
         therein,  in the light of the circumstances under which they were made,
         not misleading,  except that the foregoing does not apply to statements
         in  or  omissions  from  any  of  such  documents  based  upon  written
         information  furnished  to the Company by any  Underwriter  through the
         Representatives, if any, specifically for use therein.

                  (iii)  The  Company  has  been  duly  incorporated  and  is an
         existing  corporation  in good standing  under the laws of the State of
         Delaware,  with power and  authority  (corporate  and other) to own its
         properties and conduct its business as described in the Prospectus; and
         the Company is duly  qualified to do business as a foreign  corporation
         in good standing in all other  jurisdictions  in which its ownership or
         lease  of  property  or the  conduct  of  its  business  requires  such
         qualification.

                                       2
<PAGE>

                  (iv) Each subsidiary of the Company has been duly incorporated
         (or  formed,  as the case may be) and is an  existing  corporation  (or
         limited  partnership or limited liability company,  as the case may be)
         in  good  standing   under  the  laws  of  the   jurisdiction   of  its
         incorporation  or formation,  with power and authority  (corporate  and
         other) to own its  properties  and conduct its business as described in
         the Prospectus; and each subsidiary of the Company is duly qualified to
         do  business  as a foreign  corporation  in good  standing in all other
         jurisdictions  in which  its  ownership  or lease  of  property  or the
         conduct of its  business  requires  such  qualification,  except  where
         failure so to qualify and be in good standing  would not,  individually
         or in the  aggregate,  have a material  adverse effect on the condition
         (financial or other), business,  properties or results of operations of
         the Company and its subsidiaries  taken as a whole  ("Material  Adverse
         Effect");   all  of  the  issued  and  outstanding  capital  stock  (or
         partnership  or  other  equity  interests)  of each  subsidiary  of the
         Company has been duly  authorized  and validly issued and is fully paid
         and, except for any general partnership interest,  nonassessable;  and,
         except for the pledge  pursuant  to the Credit  Agreement,  the capital
         stock (or  partnership  or other equity  interests) of each  subsidiary
         owned by the Company,  directly or through subsidiaries,  is owned free
         from liens, encumbrances and defects.

                  (v)  If  the  Offered  Securities  are  debt  securities:  the
         applicable  Indenture  has been duly  authorized by the Company and has
         been  duly  qualified  under  the  Trust  Indenture  Act;  the  Offered
         Securities have been duly authorized;  and when the Offered  Securities
         are  delivered  and paid for  pursuant  to the Terms  Agreement  on the
         Closing  Date (as  defined  below)  or  pursuant  to  Delayed  Delivery
         Contracts (as hereinafter defined),  such Indenture will have been duly
         executed and delivered by the Company and, assuming due  authorization,
         execution  and  delivery of the  Indenture  and  authentication  of the
         Offered  Securities by the applicable  trustee  identified in the Terms
         Agreement (the "Trustee"),  such Offered Securities will have been duly
         executed,  issued and  delivered by the Company and will conform to the
         description  thereof contained in the Prospectus and such Indenture and
         such  Offered  Securities  will  constitute  valid and legally  binding
         obligations of the Company, enforceable in accordance with their terms,
         subject to bankruptcy, insolvency, fraudulent transfer, reorganization,
         moratorium  and similar  laws of general  applicability  relating to or
         affecting creditors' rights and to general equity principles.

                  (vi)  If the  Offered  Securities  are  preferred  stock:  the
         Offered  Securities  have been duly  authorized  and,  when the Offered
         Securities  have been  delivered  and paid for in  accordance  with the
         Terms Agreement on the Closing Date, such Offered  Securities will have
         been validly issued,  fully paid and  nonassessable and will conform to
         the  description   thereof   contained  in  the  Prospectus;   and  the
         stockholders  of the Company have no preemptive  rights with respect to
         the Offered Securities.

                  (vii) If the Offered  Securities  are depositary  shares:  the
         Deposit Agreement has been duly authorized by the Company;  the Offered
         Securities and the shares of the Company's  preferred stock represented
         by the  Offered  Securities  have been duly  authorized  and,  when the
         Offered  Securities have been delivered and paid for in accordance with
         the Terms  Agreement on the Closing Date, the Offered  Securities  will
         have been validly issued and delivered and such shares of the Company's
         preferred  stock  will  have  been  validly  issued,   fully  paid  and
         nonassessable  and  each  will  conform  to  the  description   thereof
         contained in the Prospectus;  when the Offered Securities are delivered
         and paid for  pursuant to the Terms  Agreement  on the Closing Date (as
         defined below) or pursuant to Delayed Delivery  Contracts,  the Deposit
         Agreement  will have been duly  executed and  delivered by the Company;
         the  deposit by the  Company of the shares of the  Company's  preferred
         stock  represented  by the Offered  Securities in  accordance  with the
         Deposit Agreement has been duly authorized by the Company and, assuming
         due  authorization,  execution and delivery of the Deposit Agreement by
         the Depositary,  each Offered Security will represent a legal and valid
         fractional  interest  in shares  of the  Company's  preferred  stock as
         described in the Prospectus; assuming due execution and delivery of the
         depositary receipts evidencing the Offered Securities by the Depositary

                                       3
<PAGE>

         pursuant  to the  Deposit  Agreement,  such  depositary  receipts  will
         entitle the holders thereof to the benefits provided therein and in the
         Deposit  Agreement;  and  the  stockholders  of  the  Company  have  no
         preemptive rights with respect to the Offered  Securities or the shares
         of the Company's preferred stock represented thereby.

                  (viii) If the Offered  Securities  are  warrants:  the Warrant
         Agreement  has  been  duly  authorized  by  the  Company;  the  Offered
         Securities  and the  securities  for which the Offered  Securities  are
         exercisable   ("Warrant   Securities")   have  been   duly   authorized
         (including,  in the case of Warrant Securities  constituting depositary
         shares, the shares of the Company's preferred stock represented by such
         depositary shares);  when the Offered Securities are delivered and paid
         for pursuant to the Terms  Agreement on the Closing Date or pursuant to
         Delayed Delivery  Contracts,  the Warrant Agreement will have been duly
         executed and  delivered by the Company,  such Offered  Securities  will
         have been duly  executed,  authenticated,  issued and delivered (as the
         case may be) by the Company and will conform to the description thereof
         contained in the Prospectus and the Warrant  Agreement and such Offered
         Securities will constitute valid and legally binding obligations of the
         Company,  enforceable  in  accordance  with  their  terms,  subject  to
         bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium
         and similar  laws of general  applicability  relating  to or  affecting
         creditors' rights and to general equity  principles;  and upon exercise
         of the Offered  Securities in accordance  with the terms of the Warrant
         Agreement and assuming due authorization, execution and delivery of the
         Warrant  Agreement  by the  Warrant  Agent,  (i) in the case of Warrant
         Securities constituting debt securities,  the applicable Indenture will
         have been duly  authorized,  executed and delivered by the Company and,
         assuming due authorization, execution and delivery of the Indenture and
         authentication of the Offered  Securities by the Trustee,  such Warrant
         Securities  will  have  been  duly  authorized,  executed,  issued  and
         delivered  by the Company and will conform to the  description  thereof
         contained  in the  Prospectus  and  such  Indenture  and  such  Warrant
         Securities will constitute valid and legally binding obligations of the
         Company,  enforceable  in  accordance  with  their  terms,  subject  to
         bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium
         and similar  laws of general  applicability  relating  to or  affecting
         creditors' rights and to general equity principles; (ii) in the case of
         Warrant  Securities   constituting  of  preferred  stock,  the  Warrant
         Securities will have been validly issued,  fully paid and nonassessable
         and  will  conform  to  the  description   thereof   contained  in  the
         Prospectus, and the stockholders of the Company will have no preemptive
         rights  with  respect to the Warrant  Securities;  (iii) in the case of
         Warrant  Securities  constituting  depositary  shares,  (A) the Warrant
         Securities  will have been validly  issued and delivered and the shares
         of the Company's preferred stock represented by such Warrant Securities
         will have been validly issued,  fully paid and  nonassessable  and each
         will conform to the  description  thereof  contained in the Prospectus,
         (B) the Deposit Agreement will have been duly authorized,  executed and
         delivered  by the  Company and the deposit by the Company of the shares
         of the Company's  preferred stock represented by the Warrant Securities
         in accordance with the Deposit Agreement will have been duly authorized
         by the Company, (C) assuming due authorization,  execution and delivery
         of the Deposit Agreement by the Depositary,  each Warrant Security will
         represent  a legal  and  valid  fractional  interest  in  shares of the
         Company's  preferred  stock as  described  in the  Prospectus,  and (D)
         assuming  due  execution  and  delivery  of  the  depositary   receipts
         evidencing  the Warrant  Securities by the  Depositary  pursuant to the
         Deposit  Agreement,  such depositary  receipts will entitle the holders
         thereof to the benefits provided therein and in the Deposit  Agreement,
         and the stockholders of the Company will have no preemptive rights with
         respect  to the  Warrant  Securities  or the  shares  of the  Company's
         preferred stock  represented  thereby;  and (iv) in the case of Warrant
         Securities  constituting  Common Stock, the Warrant  Securities and all
         outstanding  shares of capital stock of the Company will have been duly
         authorized,  validly  issued,  fully  paid and  nonassessable  and will
         conform to the description thereof contained in the Prospectus, and the
         stockholders  of the Company have no preemptive  rights with respect to
         the Warrant Securities.

                                       4
<PAGE>

                  (ix) If the Offered  Securities are Common Stock:  the Offered
         Securities  and all other  outstanding  shares of capital  stock of the
         Company have been duly  authorized;  all outstanding  shares of capital
         stock of the Company (including the Offered  Securities,  if any, being
         sold by any Selling Stockholders) are, and, when the Offered Securities
         have been delivered and paid for in accordance with the Terms Agreement
         on the Closing Date, such Offered  Securities  will have been,  validly
         issued,   fully  paid  and   nonassessable  and  will  conform  to  the
         description  thereof contained in the Prospectus;  and the stockholders
         of the Company  have no  preemptive  rights with respect to the Offered
         Securities.

                  (x) If the  Offered  Securities  are  convertible  into Common
         Stock: when the Offered  Securities are delivered and paid for pursuant
         to the Terms  Agreement on the Closing  Date,  such Offered  Securities
         will be convertible into Common Stock of the Company in accordance with
         their  terms (if the Offered  Securities  are  preferred  stock) or the
         applicable  Indenture (if the Offered  Securities are debt securities);
         the shares of Common Stock  initially  issuable upon conversion of such
         Offered  Securities have been duly authorized and reserved for issuance
         upon such  conversion  and, when issued upon such  conversion,  will be
         validly issued, fully paid and nonassessable; the outstanding shares of
         Common Stock have been duly  authorized and validly  issued,  are fully
         paid and nonassessable and conform to the description thereof contained
         in the  Prospectus;  and  the  stockholders  of  the  Company  have  no
         preemptive rights with respect to the Common Stock.

                  (xi) If the Offered Securities are Common Stock or warrants to
         purchase Common Stock or are convertible  into Common Stock:  there are
         no contracts,  agreements or understandings between the Company and any
         person that would give rise to a valid claim against the Company or any
         Underwriter  for a  brokerage  commission,  finder's  fee or other like
         payment in connection with the offering of the Offered Securities.

                  (xii) If the Offered  Securities  are Common Stock or warrants
         to purchase Common Stock or are convertible  into Common Stock:  except
         as disclosed in the Prospectus,  there are no contracts,  agreements or
         understandings  between the Company and any person granting such person
         the right to require the Company to file a registration statement under
         the Act with respect to any outstanding securities of the Company owned
         or to be owned by such person or to require the Company to include such
         securities in the securities  registered  pursuant to the  Registration
         Statement or in any securities being  registered  pursuant to any other
         registration statement filed by the Company under the Act.

                  (xiii) If the Offered  Securities  constitute  Common Stock or
         are warrants to purchase  Common Stock or are  convertible  into Common
         Stock:  the  outstanding  shares of Common  Stock are listed on the New
         York Stock Exchange (the "Stock  Exchange") and the Offered  Securities
         (if the Offered  Securities  are Common  Stock) or the Common Stock for
         which the Offered Securities are exercisable (if the Offered Securities
         are warrants to purchase  Common  Stock) or the Common Stock into which
         the Offered  Securities are convertible (if they are convertible)  have
         been approved for listing on the Stock  Exchange,  subject to notice of
         issuance.  If the Offered  Securities  are debt  securities,  preferred
         stock,  depositary  shares or  warrants,  they have been  approved  for
         listing  on  the  stock  exchange,  if  any,  indicated  in  the  Terms
         Agreement, subject to notice of issuance.

                  (xiv) No  consent,  approval,  authorization,  or order of, or
         filing with, any  governmental  agency or body or any court is required
         for the  consummation  of the  transactions  contemplated  by the Terms
         Agreement (including the provisions of this Agreement),  the applicable
         Indenture (if the Offered Securities are debt securities),  the Deposit
         Agreement  (if the Offered  Securities  are  depositary  shares) or the
         Warrant   Agreement  (if  the  Offered   Securities  are  warrants)  in
         connection with the issuance and sale of the Offered  Securities by the
         Company,  except such as have been obtained and made

                                       5
<PAGE>

         under the Act and, if the Offered  Securities are debt securities,  the
         Trust Indenture Act and such as may be required under state  securities
         laws.

                  (xv) The execution, delivery and performance of the applicable
         Indenture (if the Offered Securities are debt securities),  the Deposit
         Agreement  (if the  Offered  Securities  are  depositary  shares),  the
         Warrant Agreement (if the Offered  Securities are warrants),  the Terms
         Agreement  (including the provisions of this Agreement) and any Delayed
         Delivery  Contracts and the issuance and sale of the Offered Securities
         and, if the Offered  Securities are debt  securities,  preferred stock,
         depositary shares or warrants, compliance with the terms and provisions
         thereof  will not result in a breach or  violation  of any of the terms
         and  provisions  of, or constitute a default  under,  any statute,  any
         rule,  regulation  or order of any  governmental  agency or body or any
         court, domestic or foreign, having jurisdiction over the Company or any
         subsidiary  of the  Company  or any of  their  properties,  the  Credit
         Agreement,  or any  agreement or instrument to which the Company or any
         such  subsidiary  is a  party  or by  which  the  Company  or any  such
         subsidiary is bound or to which any of the properties of the Company or
         any such  subsidiary  is  subject,  or the charter or by-laws (or other
         constituent  document) of the Company or any such  subsidiary,  and the
         Company has full power and authority to  authorize,  issue and sell the
         Offered  Securities as contemplated  by the Terms Agreement  (including
         the provisions of this Agreement).

                  (xvi) The Terms  Agreement  (including  the provisions of this
         Agreement)  and,  if  the  Offered   Securities  are  debt  securities,
         preferred stock,  depositary  shares or warrants,  any Delayed Delivery
         Contracts  have been duly  authorized,  executed  and  delivered by the
         Company.

                  (xvii)  Except as  disclosed in the  Prospectus  and except as
         would  not  have  a  Material  Adverse  Effect,  the  Company  and  its
         subsidiaries  have good and marketable title to all real properties and
         all other  properties  and assets owned by them, in each case free from
         liens,  encumbrances and defects that would materially affect the value
         thereof or materially interfere with the use made or to be made thereof
         by them; and except as disclosed in the Prospectus, the Company and its
         subsidiaries  hold any leased real or personal property under valid and
         enforceable  leases  with no  exceptions  that  would  have a  Material
         Adverse Effect.

                  (xviii) No labor  dispute with the employees of the Company or
         any subsidiary exists or, to the knowledge of the Company,  is imminent
         that might have a Material Adverse Effect.

                  (xix) The Company  and its  subsidiaries  own,  possess or can
         acquire on reasonable terms, adequate trademarks, trade names and other
         rights  to  inventions,  know-how,  patents,  copyrights,  confidential
         information   and   other    intellectual    property    (collectively,
         "intellectual  property rights")  necessary to conduct the business now
         operated by them, or presently  employed by them, and have not received
         any notice of  infringement  of or  conflict  with  asserted  rights of
         others  with  respect to any  intellectual  property  rights  that,  if
         determined  adversely to the Company or any of its subsidiaries,  would
         individually or in the aggregate have a Material Adverse Effect.

                  (xx)  Neither the Company  nor any of its  subsidiaries  is in
         violation of any statute,  any rule,  regulation,  decision or order of
         any  governmental  agency or body or any court,  domestic  or  foreign,
         relating  to the  use,  disposal  or  release  of  hazardous  or  toxic
         substances  or  relating  to  the  protection  or  restoration  of  the
         environment  or  human  exposure  to  hazardous  or  toxic   substances
         (collectively,   "environmental  laws"),  owns  or  operates  any  real
         property  contaminated  with  any  substance  that  is  subject  to any
         environmental   laws,   is  liable  for  any   off-site   disposal   or
         contamination  pursuant to any environmental laws, or is subject to any
         claim   relating   to  any   environmental   laws,   which   violation,
         contamination,   liability  or  claim  would  individually  or  in  the
         aggregate have a Material Adverse Effect;  and the Company is not aware
         of any pending investigation which might lead to such a claim.

                                       6
<PAGE>

                  (xxi)  There  are no  pending  actions,  suits or  proceedings
         against or affecting  the Company,  any of its  subsidiaries  or any of
         their  respective  properties  that,  if  determined  adversely  to the
         Company  or any  of  its  subsidiaries,  would  individually  or in the
         aggregate  have a Material  Adverse  Effect,  or would  materially  and
         adversely  affect the ability of the Company to perform its obligations
         under the  applicable  Indenture  (if the Offered  Securities  are debt
         securities),  the  Deposit  Agreement  (if the Offered  Securities  are
         depositary  shares),  the Warrant Agreement (if the Offered  Securities
         are warrants),  the Terms  Agreement  (including the provisions of this
         Agreement)  or any Delayed  Delivery  Contracts or which are  otherwise
         material in the context of the sale of the Offered  Securities;  and no
         such actions,  suits or proceedings are threatened or, to the Company's
         knowledge, contemplated.

                  (xxii) The financial  statements  included or  incorporated by
         reference in the Registration  Statement and Prospectus  present fairly
         the financial position of the Company and its consolidated subsidiaries
         as of the dates shown and their  results of  operations  and cash flows
         for the periods shown, and such financial statements have been prepared
         in conformity with the generally accepted accounting  principles in the
         United States applied on a consistent basis; any schedules  included in
         the Registration  Statement present fairly the information  required to
         be stated therein;  and if pro forma financial  statements are included
         in the Registration  Statement and Prospectus:  the assumptions used in
         preparing  the  pro  forma   financial   statements   included  in  the
         Registration  Statement and the Prospectus  provide a reasonable  basis
         for presenting the  significant  effects  directly  attributable to the
         transactions  or  events  described  therein,  the  related  pro  forma
         adjustments give appropriate effect to those  assumptions,  and the pro
         forma  columns  therein   reflect  the  proper   application  of  those
         adjustments  to  the  corresponding   historical   financial  statement
         amounts.

                  (xxiii) Except as disclosed in the Prospectus,  since the date
         of the latest audited financial  statements included or incorporated by
         reference in the Prospectus  there has been no material adverse change,
         nor any development or event involving a prospective  material  adverse
         change, in the condition (financial or other), business,  properties or
         results of  operations of the Company and its  subsidiaries  taken as a
         whole,  and  there has been no  dividend  or  distribution  of any kind
         declared,  paid or made by the  Company  on any  class  of its  capital
         stock.

                  (xxiv) The  Company  is not and,  after  giving  effect to the
         offering and sale of the Offered  Securities and the application of the
         proceeds  thereof  as  described  in  the  Prospectus,  will  not be an
         "investment company" as defined in the Investment Company Act of 1940.

         (b) Each  Selling  Stockholder,  if any,  as of the date of each  Terms
Agreement  referred to in Section 3,  severally  represents and warrants to, and
agrees with, the several Underwriters that:

                  (i) Such Selling  Stockholder has valid and unencumbered title
         to the Offered  Securities to be delivered by such Selling  Stockholder
         and full right, power and authority to enter into this Agreement and to
         sell,  assign,  transfer  and  deliver  the  Offered  Securities  to be
         delivered by such Selling Stockholder on the Closing Date; and upon the
         delivery  of and payment for the  Offered  Securities  on such  Closing
         Date,  the several  Underwriters  will acquire  valid and  unencumbered
         title  to the  Offered  Securities  to be  delivered  by  such  Selling
         Stockholder.

                  (ii) All information furnished, or to be furnished, in writing
         to the  Company  by such  Selling  Stockholder  regarding  the  Selling
         Stockholder specifically for use in the Registration Statement is as of
         the date of any Terms Agreement,  and will be on the Closing Date, true
         and correct in all  material  respects  and does not on the date of the
         Terms Agreement,  and will not on the Closing



                                       7
<PAGE>

         Date,  contain  any untrue  statement  of a  material  fact or omit any
         material  fact  required to be stated  therein or necessary to make the
         statements therein not misleading.

                  (iii) The execution  and delivery by such Selling  Stockholder
         of, and the performance by such Selling  Stockholder of its obligations
         under this Agreement, the Custody Agreement hereinafter referred to and
         the Power of Attorney  appointing  certain  individuals as such Selling
         Stockholder's  attorneys-in-fact  to the extent set forth  therein (the
         "Power of Attorney") will not result in a breach or violation of any of
         the  terms or  provisions  of,  or  constitute  a  default  under,  the
         certificate  of   incorporation  or  bylaws  or  agreement  of  limited
         partnership or other constituent  document of such Selling  Stockholder
         (if such Selling Stockholder is a corporation or limited partnership or
         other  entity)  or  any  statute,  rule,  regulation  or  order  of any
         governmental  agency or body or any court having jurisdiction over such
         Selling  Stockholder  or any of its  properties,  or any  agreement  or
         instrument to which such Selling  Stockholder is a party or by which it
         is  bound  or to  which  any  of  its  properties  is  subject,  or the
         constituent documents, if any, of such Selling Stockholder.

                  (iv) No consent, approval, authorization,  order or waiver of,
         or  filing  with,  any  governmental  agency  or body or any  court  is
         required  to be obtained or made by such  Selling  Stockholder  for the
         sale of the Offered  Securities to be sold by such Selling  Stockholder
         or the performance by such Selling Stockholder of its obligations under
         the Terms  Agreement  or the Power of Attorney or Custody  Agreement of
         such Selling  Stockholder,  except such as have been  obtained and made
         under the Act and such as may be required under state securities laws.

                  (v) The Terms  Agreement  (including  the  provisions  of this
         Agreement)  has been duly  authorized,  executed and delivered by or on
         behalf of such  Selling  Stockholder  and the Power of Attorney and the
         Custody Agreement have been duly authorized,  executed and delivered by
         such  Selling  Stockholder  and are its  valid and  binding  agreements
         (subject    to    bankruptcy,    insolvency,    fraudulent    transfer,
         reorganization,  moratorium  and similar laws of general  applicability
         relating  to or  affecting  creditors'  rights  and to  general  equity
         principles).

         3. Purchase and Offering of Offered  Securities.  The obligation of the
Underwriters  to  purchase  the  Offered  Securities  will  be  evidenced  by an
agreement or exchange of other written communications,  which may be in the form
of Annex I, II or III or in such other  form as the  parties  may agree  ("Terms
Agreement")  at the time  the  Company  and the  Selling  Stockholders,  if any,
determine to sell the Offered  Securities.  The Terms Agreement will incorporate
by reference the  provisions  of this  Agreement,  except as otherwise  provided
therein,  and will  specify  the firm or firms which will be  Underwriters,  the
names  of any  Representatives,  the  principal  amount  or  number  of  Offered
Securities to be purchased by each Underwriter, the purchase price to be paid by
the Underwriters,  the name of each Selling  Stockholder,  if any, the number of
shares  to be sold by each  Selling  Stockholder,  if any,  and (if the  Offered
Securities are debt securities,  preferred stock, depositary shares or warrants)
the terms of the Offered  Securities  not already  specified (in the  applicable
Indenture,  in the case of Offered  Securities that are debt securities,  in the
Deposit Agreement, in the case of Offered Securities that are depositary shares,
or in the  Warrant  Agreement,  in the  case  of  Offered  Securities  that  are
warrants),  including,  but not limited to, interest rate (if debt securities or
debt warrants),  dividend rate (if preferred stock,  preferred stock warrants or
depositary  shares),  maturity  (if  debt  securities  or  debt  warrants),  any
redemption  provisions and any sinking fund  requirements and whether any of the
Offered  Securities may be sold to institutional  investors  pursuant to Delayed
Delivery  Contracts.  The Terms  Agreement will specify any other details of the
terms of offering that should be reflected in the prospectus supplement relating
to the offering of the Offered Securities.

         On the basis of the  representations,  warranties  and  agreements  set
forth in the Terms Agreement  (including the provisions of this Agreement),  but
subject to the terms and conditions set forth in the Terms



                                       8
<PAGE>

Agreement  (including  the provisions of this  Agreement),  the Company and each
Selling Stockholder,  if any, will agree,  severally and not jointly, to sell to
each Underwriter, and each Underwriter will agree, severally and not jointly, to
purchase from the Company and each Selling Stockholder,  if any, at the purchase
price specified in the Terms  Agreement,  that number of Offered  Securities (or
Firm  Offered  Securities  if there is an  Over-Allotment  Option)  specified or
determined  in  accordance  with  the  provisions  of the  Terms  Agreement.  In
addition,  if the Terms Agreement  provides for an Over-Allotment  Option,  upon
written notice from the Lead Underwriter (as defined below) given to the Company
from time to time not more than thirty days  subsequent to the date of the Terms
Agreement, the Underwriters may, severally and not jointly, purchase all or less
than all of the  Optional  Offered  Securities,  and the Company and the Selling
Stockholders,  if any,  will agree,  severally  and not jointly,  to sell to the
Underwriters,  at the  purchase  price per share to be paid for the Firm Offered
Securities,  that number of Optional Offered Securities  specified or determined
in accordance  with the provisions of the Terms  Agreement;  provided,  however,
that the  Over-Allotment  Option may be  exercised  from time to time and to the
extent not previously  exercised may be  surrendered  and terminated at any time
upon notice by Lead Underwriter to the Company.

         The Company and the Selling Stockholders,  if any, or the Custodian (as
defined below), if there is a custody arrangement with the Selling Stockholders,
will deliver the Offered  Securities (or Firm Offered  Securities if there is an
Over-Allotment   Option)  to  the   Representatives  for  the  accounts  of  the
Underwriters,  against payment of the purchase price in Federal (same day) Funds
by wire transfer in U.S.  Dollars to an account at a bank acceptable to the Lead
Underwriter  drawn to the  order  of the  Company,  in the  case of the  Offered
Securities  (or Firm Offered  Securities if there is an  Over-Allotment  Option)
sold by the Company, and to the Selling Stockholders,  if any, or the Custodian,
if there is a custody arrangement with the Selling Stockholders,  in the case of
the Offered Securities (or Firm Offered Securities if there is an Over-Allotment
Option) sold by the Selling  Stockholders,  at the place of delivery and payment
specified  in the  Terms  Agreement  and at the time and  date of  delivery  and
payment specified in the Terms Agreement (such time and date, or such other time
not later than seven full business  days  thereafter  as the  Underwriter  first
named in the Terms Agreement (the "Lead  Underwriter")  and the Company agree as
the time for  payment  and  delivery,  being  herein and in the Terms  Agreement
referred to as the "Closing Date" or "First Closing Date" if the Terms Agreement
provides for an  Over-Allotment  Option).  For purposes of Rule 15c6-1 under the
Securities Exchange Act of 1934 (the "Exchange Act"), the Closing Date (or First
Closing Date if there is an Over-Allotment  Option) (if later than the otherwise
applicable  settlement date) shall be the date for payment of funds and delivery
of  securities  for all the Offered  Securities  (or Firm Offered  Securities if
there is an  Over-Allotment  Option) sold pursuant to the  offering,  other than
Contract  Securities  (as defined below) for which payment of funds and delivery
of  securities  shall be as  hereinafter  provided.  It is  understood  that the
Underwriters  propose to offer the Offered  Securities  for sale as set forth in
the Prospectus.

         If the Terms Agreement provides for an Over-Allotment Option, each time
for the  delivery of and  payment for the  Optional  Offered  Securities,  being
herein referred to as an "Optional Closing Date", which may be the First Closing
Date (the First  Closing Date and each  Optional  Closing  Date,  if any,  being
sometimes  referred to as a "Closing  Date"),  shall be  determined  by the Lead
Underwriter  but shall not be later than seven full  business days after written
notice of election to purchase Optional Offered Securities is given. The Company
and the  Selling  Stockholders,  if  any,  will  deliver  the  Optional  Offered
Securities being purchased on each Optional Closing Date to the  Representatives
for the accounts of the  Underwriters,  against  payment of the  purchase  price
therefor  in Federal  (same day) Funds by wire  transfer  in U.S.  Dollars to an
account at a bank acceptable to the Lead  Underwriter  drawn to the order of the
Company, in the case of the Optional Offered Securities sold by the Company, and
to the Selling  Stockholders,  if any, or the  Custodian,  if there is a custody
arrangement with the Selling  Stockholders,  in the case of the Optional Offered
Securities  sold by the  Selling  Stockholders,  at the  place of  delivery  and
payment specified in the Terms Agreement.



                                       9
<PAGE>

         If the  Terms  Agreement  provides  for  sales  of  Offered  Securities
pursuant to delayed delivery contracts,  the Company authorizes the Underwriters
to solicit offers to purchase  Offered  Securities  pursuant to delayed delivery
contracts  substantially  in the  form of  Annex IV  attached  hereto  ("Delayed
Delivery  Contracts")  with such changes therein as the Company may authorize or
approve.  Delayed  Delivery  Contracts are to be with  institutional  investors,
including  commercial and savings  banks,  insurance  companies,  pension funds,
investment companies and educational and charitable institutions. On the Closing
Date the  Company  will pay, as  compensation,  to the  Representatives  for the
accounts  of the  Underwriters,  the fee set forth in such  Terms  Agreement  in
respect of the  principal  amount (if debt  securities)  or number of shares (if
preferred stock, Common Stock or depositary shares) or warrants (if warrants) of
Offered Securities to be sold pursuant to Delayed Delivery Contracts  ("Contract
Securities").  The Underwriters  will not have any  responsibility in respect of
the validity or the performance of Delayed  Delivery  Contracts.  If the Company
executes and delivers Delayed Delivery  Contracts,  the Contract Securities will
be  deducted  from  the  Offered  Securities  to be  purchased  by  the  several
Underwriters  and the aggregate  principal amount (if debt securities) or number
of shares (if preferred  stock,  Common Stock or depositary  shares) or warrants
(if  warrants) to be purchased by each  Underwriter  will be reduced pro rata in
proportion to the principal  amount (if debt securities) or number of shares (if
preferred  stock,  Common Stock or depositary  shares) or warrants (if warrants)
set forth opposite each  Underwriter's  name in such Terms Agreement,  except to
the extent that the Lead  Underwriter  determines  that such reduction  shall be
otherwise than pro rata and so advises the Company.  The Company will advise the
Lead  Underwriter  not later than the  business day prior to the Closing Date of
the  principal  amount (if debt  securities)  or number of shares (if  preferred
stock, Common Stock or depositary shares) or warrants (if warrants) constituting
Contract Securities.

         If  the  Offered   Securities  are  Common  Stock,  there  are  Selling
Stockholders and there is a custody  arrangement with the Selling  Stockholders,
as of the date of each Terms Agreement,  certificates in negotiable form for any
Common  Stock of the Company to be sold by such  Selling  Stockholders  shall be
placed  in  custody,  for  delivery  under the Terms  Agreement,  under  custody
agreements  (the "Custody  Agreements")  made with  custodian  identified in the
Terms  Agreement (the  "Custodian").  Each Selling  Stockholder  agrees that the
shares  represented  by  the  certificates  held  in  custody  for  the  Selling
Stockholders  under the Custody  Agreements  are subject to the interests of the
Underwriters,  that the arrangements  made by the Selling  Stockholders for such
custody are to that  extent  irrevocable  except as provided  therein and in the
Power of Attorney of such Selling  Stockholder,  and that the obligations of the
Selling  Stockholders  under any Terms  Agreement  shall  not be  terminated  by
operation of law, whether by the death of any individual Selling  Stockholder or
the  occurrence of any other event,  or in the case of a trust,  by the death of
any trustee or trustees or the  termination  of such trust,  or in the case of a
corporation or partnership or other entity, by the dissolution or liquidation of
such corporation or partnership or other entity,  or the occurrence of any other
event.  If any  individual  Selling  Stockholder or any such trustee or trustees
should die, or if any such  corporation  or  partnership  should be dissolved or
liquidated  or if any other such event  should  occur,  or if any of such trusts
should terminate,  before the delivery of the Offered Securities under any Terms
Agreement,  certificates  for such Offered  Securities shall be delivered by the
Custodian in accordance with the terms and conditions of the Terms Agreement and
the Custody Agreements as if such death, dissolution, liquidation or other event
or  termination  had not  occurred,  regardless  of whether or not the Custodian
shall have  received  notice of such death,  dissolution,  liquidation  or other
event or termination.

         If the Offered  Securities are debt  securities and the Terms Agreement
specifies  "Book-Entry  Only" settlement or otherwise states that the provisions
of this paragraph  shall apply,  the Company will deliver against payment of the
purchase  price  the  Offered  Securities  in the form of one or more  permanent
global  securities in definitive form (the "Global  Securities")  deposited with
the Trustee as custodian for The Depository Trust Company ("DTC") and registered
in the name of Cede & Co., as nominee for DTC. Interests in any permanent global
securities  will be held only in  book-entry  form  through  DTC,  except in the
limited  circumstances  described  in the  Prospectus.  Payment  for the Offered
Securities  shall be made by the



                                       10
<PAGE>

Underwriters  in Federal  (same day) funds by  official  check or checks or wire
transfer to an account previously designated by the Company at a bank acceptable
to the Lead  Underwriter,  in each case drawn to the order of the Company at the
place of payment  specified in the Terms Agreement on the Closing Date,  against
delivery to the applicable Trustee as custodian for DTC of the Global Securities
representing all of the Offered Securities.

         4. Certain Agreements of the Company and the Selling  Stockholders,  if
any.  The  Company  agrees  with  the  several   Underwriters  and  the  Selling
Stockholders, if any, that it will furnish to counsel for the Underwriters,  one
signed copy of the Company  Registration  Statement and the Selling  Stockholder
Registration  Statement,  each relating to the Registered Securities,  including
all exhibits,  in the form it became effective and of all amendments thereto and
that, in connection with each offering of Offered Securities:

                  (a) The Company will file the  Prospectus  with the Commission
         pursuant to and in accordance  with Rule  424(b)(2)  (or, if applicable
         and if  consented  to by the Lead  Underwriter,  subparagraph  (5)) not
         later than the second business day following the execution and delivery
         of the Terms Agreement.

                  (b) The Company will advise the Lead  Underwriter  promptly of
         any proposal to amend or supplement the  Registration  Statement or the
         Prospectus and will not effect such amendment or supplement without the
         Lead  Underwriter's  consent.  The  Company  will also  advise the Lead
         Underwriter  promptly of the filing of any such amendment or supplement
         and of the institution by the Commission of any stop order  proceedings
         in respect of the  Registration  Statement  or of any part  thereof and
         will use its best  efforts to  prevent  the  issuance  of any such stop
         order and to obtain as soon as possible its lifting, if issued.

                  (c) If, at any time when a prospectus  relating to the Offered
         Securities is required to be delivered under the Act in connection with
         sales by any  Underwriter  or dealer,  any event  occurs as a result of
         which the Prospectus as then amended or  supplemented  would include an
         untrue  statement of a material fact or omit to state any material fact
         necessary  to  make  the  statements  therein,  in  the  light  of  the
         circumstances  under which they were made, not misleading,  or if it is
         necessary at any time to amend the  Prospectus  to comply with the Act,
         the Company promptly will notify the Lead Underwriter of such event and
         will promptly prepare and file with the Commission, at its own expense,
         an  amendment  or  supplement  which will  correct  such  statement  or
         omission or an amendment which will effect such compliance. Neither the
         Lead Underwriter's  consent to, nor the Underwriters'  delivery of, any
         such  amendment or supplement  shall  constitute a waiver of any of the
         conditions set forth in Section 5 hereof.

                  (d) As soon as  practicable,  but not  later  than 16  months,
         after the date of each Terms Agreement, the Company will make generally
         available  to its  securityholders  an  earnings  statement  covering a
         period  of at least 12  months  beginning  after  the  later of (i) the
         respective  effective date of the registration  statements  relating to
         the Registered  Securities,  (ii) the effective date of the most recent
         post-effective  amendment  to  the  Registration  Statement  to  become
         effective  prior to the date of such Terms Agreement and (iii) the date
         of the Company's  most recent Annual Report on Form 10-K filed with the
         Commission  prior  to the  date of such  Terms  Agreement,  which  will
         satisfy the provisions of Section 11(a) of the Act.

                  (e) The Company will furnish to the Representatives  copies of
         the  Registration  Statement,   including  all  exhibits,  any  related
         preliminary  prospectus,  any related preliminary prospectus supplement
         and,  so long as  delivery  of a  Prospectus  relating  to the  Offered
         Securities is required to be delivered under the Act in connection with
         sales by any  Underwriter or dealer,  the Prospectus and all amendments
         and  supplements to such  documents,  in each case as soon as available
         and in such



                                       11
<PAGE>

         quantities as the Lead  Underwriter  reasonably  requests.  The Company
         will pay the expenses of printing and  distributing to the Underwriters
         all such documents.

                  (f) The  Company  will  arrange for the  qualification  of the
         Offered  Securities  for sale and (if the Offered  Securities  are debt
         securities,   preferred  stock,  depositary  shares  or  warrants)  the
         determination  of their  eligibility  for investment  under the laws of
         such jurisdictions as the Lead Underwriter designates and will continue
         such qualifications in effect so long as required for the distribution;
         provided,  that the  Company  shall not be  required  to  qualify  as a
         foreign  corporation or to file a general consent to service of process
         or to subject itself to taxation generally in any jurisdiction.

                  (g)  During  the  period of five  years  after the date of any
         Terms Agreement,  the Company will furnish to the Representatives  and,
         upon  request,  to each of the other  Underwriters,  if any, as soon as
         practicable  after the end of each  fiscal  year,  a copy of its annual
         report to  stockholders  for such year; and the Company will furnish to
         the Representatives (i) as soon as available, a copy of each report and
         any definitive proxy statement of the Company filed with the Commission
         under the Exchange Act or mailed to stockholders, and (ii) from time to
         time,  such  other  information  concerning  the  Company  as the  Lead
         Underwriter may reasonably request.

                  (h) The Company and each Selling Stockholder, if any, will pay
         all expenses  incidental to the performance of their  obligations under
         the Terms Agreement  (including the provisions of this Agreement),  the
         Indentures, the Deposit Agreement and the Warrant Agreement,  including
         (i) the fees and expenses of the Trustees,  Depositary,  Warrant Agent,
         registrar and transfer agent of the Common Stock and their professional
         advisers;  (ii) payment or  reimbursement  of the  Underwriters (to the
         extent  incurred  by  them)  for  any  filing  fees or  other  expenses
         (including fees and  disbursements  of counsel)  incurred in connection
         with  qualification  of the  Registered  Securities  for  sale  (if the
         Offered  Securities are debt securities,  preferred  stock,  depositary
         shares or warrants (other than warrants to purchase Common Stock)), any
         determination  of their  eligibility  for investment  under the laws of
         such  jurisdictions  as the  Lead  Underwriter  may  designate  and the
         printing  of  memoranda   relating  thereto;   (iii)  all  expenses  in
         connection  with the execution,  issue,  authentication,  packaging and
         initial  delivery  of  the  Offered  Securities,  the  preparation  and
         printing  of  the  Terms  Agreement  (including  this  Agreement),  the
         Indentures,   the  Deposit  Agreement,   the  Warrant  Agreement,   the
         Registration  Statement and amendments and supplements thereto, and any
         other document  relating to the issuance,  offer,  sale and delivery of
         the  Offered  Securities;  (iv)  the  cost of  qualifying  the  Offered
         Securities, to the extent applicable, for trading on the New York Stock
         Exchange  or  other  national  securities  exchange  and  any  expenses
         incidental  thereto;  (v) the cost of any  advertising  approved by the
         Company in connection  with the issue of the Offered  Securities;  (vi)
         any fees charged by  investment  rating  agencies for the rating of the
         Offered  Securities  (if  they are debt  securities,  preferred  stock,
         depositary  shares or warrants  (other than warrants to purchase Common
         Stock));   (vii)  any  applicable  filing  fee  incident  to,  and  the
         reasonable fees and  disbursements  of counsel for the  Underwriters in
         connection  with, the review by the National  Association of Securities
         Dealers, Inc. of the Registered Securities;  (viii) any travel expenses
         of the Company's  officers and employees and any other  expenses of the
         Company  in  connection   with  attending  or  hosting   meetings  with
         prospective  purchasers  of  Registered  Securities;  and (ix) expenses
         incurred in distributing the Prospectus,  any preliminary prospectuses,
         any  preliminary  prospectus  supplements  or any other



                                       12
<PAGE>

         amendments  or  supplements  to the  Prospectus  to  the  Underwriters;
         provided,   however,  the  Selling  Stockholders,   if  any,  shall  be
         responsible  for the payment of any transfer  taxes on the sale by such
         Selling Stockholders of the Offered Securities to the Underwriters.

                  (i) If the Offered  Securities are debt securities,  preferred
         stock,  depositary  shares or warrants (other than warrants to purchase
         Common  Stock),  the Company  will not offer,  sell,  contract to sell,
         pledge or otherwise  dispose of,  directly or indirectly,  or file with
         the Commission a registration  statement  under the Act relating to any
         indebtedness  issued  or  guaranteed  by the  Company  (if the  Offered
         Securities are debt securities or warrants to purchase debt securities)
         or any series of  preferred  stock or  depositary  shares  representing
         preferred  stock  issued or  guaranteed  by the Company (if the Offered
         Securities  are  preferred  stock,  depositary  shares or  warrants  to
         purchase  preferred stock or depositary  shares),  or publicly disclose
         the  intention to make any such offer,  sale,  pledge,  disposition  or
         filing, without the prior written consent of the Lead Underwriter for a
         period  beginning at the time of execution of the Terms  Agreement  and
         ending  the  number of days  after the  Closing  Date  specified  under
         "Blackout" in the Terms Agreement (the "Blackout Period").

                  (j) If the Offered  Securities are Common Stock or warrants to
         purchase Common Stock or are convertible into Common Stock, the Company
         will not offer, sell, contract to sell, pledge or otherwise dispose of,
         directly or  indirectly,  or file with the  Commission  a  registration
         statement  under the Act relating to, any shares of its Common Stock or
         any  other  capital  stock  of  the  Company  or any  other  securities
         convertible  into or  exchangeable or exercisable for any shares of its
         Common  Stock,  or publicly  disclose  the  intention  to make any such
         offer, sale, pledge,  disposition or filing,  without the prior written
         consent of the Lead Underwriter for the Blackout Period, except for any
         such offer, sale,  contract to sell, pledge or other disposition of (i)
         securities issued or delivered upon conversion, exchange or exercise of
         any other  securities of the Company  outstanding on the date of, or to
         be issued pursuant to, the Terms  Agreement,  (ii) capital stock of the
         Company issued pursuant to benefit or other incentive plans  maintained
         for  its  officers,  directors,   consultants  or  employees  or  (iii)
         securities  issued in connection with mergers,  acquisitions or similar
         transaction.  The Company also will deliver to the Underwriters,  prior
         to the  date  of  the  Terms  Agreement,  "lock-up  agreements"  of the
         directors,  officers  and  certain  stockholders  of the  Company  also
         agreeing  not to  make  any  such  offer,  sale,  contract  to  sell or
         disposition,  for the Blackout  Period on such terms as the Company and
         the Lead Underwriter shall have agreed.

                  (k) If the Offered  Securities  are Common Stock and there are
         Selling  Stockholders,  each Selling  Stockholder agrees to execute and
         deliver to the  Underwriters an agreement  substantially  to the effect
         set forth in subsection 4(j) hereof in form and substance  satisfactory
         to the Underwriters.

                  (l) If the Offered  Securities  are Common Stock and there are
         Selling Stockholders, each Selling Stockholder agrees to deliver to the
         Lead  Underwriter on or prior to the Closing Date a properly  completed
         and  executed  United  States  Treasury  Department  Form W-9 (or other
         applicable   form  or  statement   specified  by  Treasury   Department
         regulations in lieu thereof).

         5. Conditions of the Obligations of the  Underwriters.  The obligations
of the several  Underwriters to purchase and pay for the Offered  Securities (or
Firm Offered  Securities  if there is an  Over-Allotment  Option) on the Closing
Date  (or  First  Closing  Date if there is an  Over-Allotment  Option)  and the
Optional Offered Securities,  if any, on any Optional Closing Date, if any, will
be subject to the accuracy of the  representations and warranties on the part of
the Company and the Selling Stockholders, if any, herein, to the accuracy of the
statements of Company  officers made pursuant to the provisions  hereof,  to the
performance  by the  Company  and the  Selling  Stockholders,  if any,  of their
obligations hereunder and to the following additional conditions precedent:



                                       13
<PAGE>

                  (a) On or  prior  to the  date  of the  Terms  Agreement,  the
         Representatives  shall  have  received  a  letter,  dated  the  date of
         delivery  thereof,  of Deloitte & Touche LLP  confirming  that they are
         independent  public  accountants  within the meaning of the Act and the
         applicable published Rules and Regulations  thereunder,  and stating in
         effect that:

                           (i) in their opinion the financial statements and any
                  schedules  examined by them and  included or  incorporated  by
                  reference in the Prospectus  comply as to form in all material
                  respects with the applicable  accounting  requirements  of the
                  Act and the related published Rules and Regulations;

                           (ii) they have performed the procedures  specified by
                  the American  Institute of Certified Public  Accountants for a
                  review  of  interim  financial  information  as  described  in
                  Statement  of Auditing  Standards  No. 71,  Interim  Financial
                  Information, on any unaudited financial statements included or
                  incorporated by reference in the Registration Statement;

                           (iii)  on the  basis  of the  review  referred  to in
                  clause (ii) above, a reading of the latest  available  interim
                  financial statements of the Company, inquiries of officials of
                  the  Company  who  have   responsibility   for  financial  and
                  accounting  matters and other  specified  procedures,  nothing
                  came to their attention that caused them to believe that:

                                    (A) the unaudited financial  statements,  if
                           any,  included or  incorporated  by  reference in the
                           Prospectus  do not comply as to form in all  material
                           respects with the applicable accounting  requirements
                           of the  Act  and  the  related  published  Rules  and
                           Regulations or any material  modifications  should be
                           made  to  such  unaudited  financial  statements  and
                           summary of earnings for them to be in conformity with
                           generally accepted accounting principles;

                                    (B) at the  date  of  the  latest  available
                           balance  sheet  read  by  such  accountants,  or at a
                           subsequent specified date not more than five business
                           days prior to the date of the such letter,  there was
                           any change in the  capital  stock or any  increase in
                           short-term  indebtedness  or  long-term  debt  of the
                           Company and its consolidated  subsidiaries or, at the
                           date of the latest  available  balance  sheet read by
                           such   accountants,   there  was  any   decrease   in
                           consolidated  net current  assets or net  assets,  as
                           compared  with  amounts  shown on the latest  balance
                           sheet  included or  incorporated  by reference in the
                           Prospectus; or

                                    (C) for the period from the closing  date of
                           the latest income statement  included or incorporated
                           by reference in the Prospectus to the closing date of
                           the latest  available  income  statement read by such
                           accountants  there were any  decreases,  as  compared
                           with the  corresponding  period of the previous  year
                           and with the period of corresponding length ended the
                           date  of the  latest  income  statement  included  or
                           incorporated  by  reference  in  the  Prospectus,  in
                           consolidated  net revenues,  operating  cash flow (as
                           that  term is  defined  in the  financial  statements
                           examined  by them) or in other  income  and  expense,
                           net,  or in the total or (if the  Offered  Securities
                           are  Common   Stock  or  are   convertible   into  or
                           exercisable  for Common  Stock) per share  amounts of
                           consolidated net income before extraordinary items or
                           net income or (if the Offered  Securities  are or are
                           exercisable  for  debt  securities)  in the  ratio of
                           earnings   to  fixed   charges  or  (if  the  Offered
                           Securities are or are exercisable for preferred stock
                           or  depositary  shares) in the ratio of  earnings  to
                           fixed charges and preferred stock dividends combined;
                           and



                                       14
<PAGE>

                                    (D) the pro forma  financial  data set forth
                           or  incorporated  by reference in the Prospectus does
                           not comply in form in all  material  respects  to the
                           applicable accounting requirements of the Act and the
                           related  Rules  and  Regulations  or  the  pro  forma
                           adjustments  have not been  properly  applied  to the
                           historical amounts in the compilation of that data;

                  except in all cases set forth in clauses (B) and (C) above for
                  changes, increases or decreases which the Prospectus discloses
                  have  occurred  or may  occur or which are  described  in such
                  letter; and

                           (iv) they have compared  specified dollar amounts (or
                  percentages  derived  from  such  dollar  amounts)  and  other
                  financial  information  contained or incorporated by reference
                  in the Prospectus (in each case to the extent that such dollar
                  amounts,  percentages  and  other  financial  information  are
                  derived from the general accounting records of the Company and
                  its  subsidiaries  subject  to the  internal  controls  of the
                  Company's  accounting system or are derived directly from such
                  records by analysis or computation)  with the results obtained
                  from inquiries,  a reading of such general  accounting records
                  and other  procedures  specified in such letter and have found
                  such  dollar   amounts,   percentages   and  other   financial
                  information  to be in agreement  with such results,  except as
                  otherwise specified in such letter.

         All   financial   statements   and   schedules   included  in  material
         incorporated by reference into the Prospectus  shall be deemed included
         in the Prospectus for purposes of this subsection.

                  (b) On or  prior  to the  date  of the  Terms  Agreement,  the
         Representatives shall have received letters, dated the date of delivery
         thereof,  of each other firm of  independent  public  accountants  (the
         "Other Auditors") that have examined any financial  statements of other
         businesses included or incorporated by reference in the Prospectus,  in
         each case  confirming  that  they are  independent  public  accountants
         within the meaning of the Act and the  applicable  published  Rules and
         Regulations  thereunder,  and  stating,  to the extent  applicable,  in
         effect that:

                           (i) in their opinion the financial statements and any
                  schedules  examined by them and  included or  incorporated  by
                  reference in the Prospectus  comply as to form in all material
                  respects with the applicable  accounting  requirements  of the
                  Act and the related published Rules and Regulations;

                           (ii) they have performed the procedures  specified by
                  the American  Institute of Certified Public  Accountants for a
                  review  of  interim  financial  information  as  described  in
                  Statement  of Auditing  Standards  No. 71,  Interim  Financial
                  Information, on any unaudited financial statements included or
                  incorporated by reference in the Registration Statement;

                           (iii)  on the  basis  of the  review  referred  to in
                  clause (ii) above, a reading of the latest  available  interim
                  financial  statements of the company for which they  performed
                  the procedures  specified in this subsection (each an "Audited
                  Company"),  inquiries  of  officials  of the  Company who have
                  responsibility  for financial and accounting matters and other
                  specified  procedures,  nothing came to their  attention  that
                  caused them to believe that:

                                    (A) the unaudited financial  statements,  if
                           any,  included or  incorporated  by  reference in the
                           Prospectus  do not comply as to form in all  material
                           respects with the applicable accounting  requirements
                           of the  Act  and  the  related  published  Rules  and
                           Regulations or any material  modifications  should be
                           made  to  such



                                       15
<PAGE>

                           unaudited   financial   statements   and  summary  of
                           earnings for them to be in conformity  with generally
                           accepted accounting principles;

                                    (B) at the  date  of  the  latest  available
                           balance  sheet  read  by  such  accountants,  or at a
                           subsequent specified date not more than five business
                           days prior to the date of the such letter,  there was
                           any change in the  capital  stock or any  increase in
                           short-term  indebtedness  or  long-term  debt  of the
                           Audited Company and its consolidated subsidiaries or,
                           at the date of the  latest  available  balance  sheet
                           read by such  accountants,  there was any decrease in
                           consolidated  net current  assets or net  assets,  as
                           compared  with  amounts  shown on the latest  balance
                           sheet  included or  incorporated  by reference in the
                           Prospectus; or

                                    (C) for the period from the closing  date of
                           the latest income statement  included or incorporated
                           by reference in the Prospectus to the closing date of
                           the latest  available  income  statement read by such
                           accountants  there were any  decreases,  as  compared
                           with the  corresponding  period of the previous  year
                           and with the period of corresponding length ended the
                           date  of the  latest  income  statement  included  or
                           incorporated  by  reference  in  the  Prospectus,  in
                           consolidated  net  revenues,  operating  income or in
                           other income and expense, net, or in the total or (if
                           the  Offered  Securities  are  Common  Stock  or  are
                           convertible into or exercisable for Common Stock) per
                           share  amounts  of  consolidated  net  income  before
                           extraordinary  items or net income or (if the Offered
                           Securities   are  or   are   exercisable   for   debt
                           securities) in the ratio of earnings to fixed charges
                           or (if the Offered  Securities are or are exercisable
                           for  preferred  stock)  in the ratio of  earnings  to
                           fixed charges and preferred stock dividends combined;

                  except in all cases set forth in clauses (B) and (C) above for
                  changes, increases or decreases which the Prospectus discloses
                  have  occurred  or may  occur or which are  described  in such
                  letter; and

                           (iv) they have compared  specified dollar amounts (or
                  percentages  derived  from  such  dollar  amounts)  and  other
                  financial  information  contained or incorporated by reference
                  in the Prospectus (in each case to the extent that such dollar
                  amounts,  percentages  and  other  financial  information  are
                  derived  from the  general  accounting  records of the Audited
                  Company and its subsidiaries  subject to the internal controls
                  of the  Audited  Company's  accounting  system or are  derived
                  directly  from such records by analysis or  computation)  with
                  the results obtained from inquiries, a reading of such general
                  accounting  records  and other  procedures  specified  in such
                  letter and have found such  dollar  amounts,  percentages  and
                  other  financial  information  to be in  agreement  with  such
                  results, except as otherwise specified in such letter.

         All   financial   statements   and   schedules   included  in  material
         incorporated by reference into the Prospectus  shall be deemed included
         in the Prospectus for purposes of this subsection.

                  (c) The  Prospectus  shall have been filed with the Commission
         in accordance  with the Rules and  Regulations and Section 4(a) of this
         Agreement.   No  stop  order   suspending  the   effectiveness  of  the
         Registration  Statement or of any part  thereof  shall have been issued
         and no proceedings  for that purpose shall have been  instituted or, to
         the knowledge of the Company, each Selling Stockholder,  if any, or any
         Underwriter, shall be contemplated by the Commission.



                                       16
<PAGE>

                  (d) Subsequent to the execution of the Terms Agreement,  there
         shall not have  occurred (i) any change,  or any  development  or event
         involving a prospective change, in the condition  (financial or other),
         business,  properties  or results of  operations of the Company and its
         subsidiaries  taken  as one  enterprise  which,  in the  judgment  of a
         majority in interest of the Underwriters including any Representatives,
         is material  and adverse and makes it  impractical  or  inadvisable  to
         proceed  with  completion  of the  public  offering  or the sale of and
         payment for the Offered Securities;  (ii) any downgrading in the rating
         of any debt  securities,  preferred  stock or depositary  shares of the
         Company by any "nationally  recognized statistical rating organization"
         (as defined for purposes of Rule 436(g)  under the Act),  or any public
         announcement  that any such  organization  has  under  surveillance  or
         review its rating of any debt securities, preferred stock or depositary
         shares  of the  Company  (other  than  an  announcement  with  positive
         implications of a possible upgrading,  and no implication of a possible
         downgrading, of such rating); (iii) any material suspension or material
         limitation  of trading in  securities  generally  on the New York Stock
         Exchange,  or any  setting  of  minimum  prices  for  trading  on  such
         exchange, or any suspension of trading of any securities of the Company
         on any  exchange or in the  over-the-counter  market;  (iv) any banking
         moratorium declared by U.S. Federal or New York authorities; or (v) any
         outbreak or escalation of major  hostilities in which the United States
         is  involved,   any  declaration  of  war  by  Congress  or  any  other
         substantial national or international  calamity or emergency if, in the
         judgment of a majority in interest of the  Underwriters  including  any
         Representatives,   the  effect  of  any  such   outbreak,   escalation,
         declaration,  calamity or emergency makes it impractical or inadvisable
         to proceed with  completion  of the public  offering or the sale of and
         payment for the Offered Securities.

                  (e) The Representatives shall have received an opinion,  dated
         the Closing Date, of Sullivan & Worcester LLP, counsel for the Company,
         stating to the effect that:

                           (i) Each of the Company and its  subsidiaries  listed
                  on Annex V hereto has been duly  incorporated  (or formed,  as
                  the case may be) and each of the Company and its  subsidiaries
                  is an existing  corporation (or limited partnership or limited
                  liability company,  as the case may be) in good standing under
                  the  laws  of  the  jurisdiction  of its  incorporation,  with
                  corporate,  partnership or limited liability company power and
                  authority  to own its  properties  and conduct its business as
                  described in the Offering  Document;  and is duly qualified to
                  do business as a foreign corporation (or other entity) in good
                  standing in all other  jurisdictions in which its ownership or
                  lease of property or the conduct of its business requires such
                  qualification,  except  where the  failure to be so  qualified
                  would not individually have a Material Adverse Effect;

                           (ii) If the Offered  Securities are debt  securities:
                  the applicable  Indenture has been duly  authorized,  executed
                  and delivered by the Company and has been duly qualified under
                  the Trust Indenture Act; the Offered Securities have been duly
                  authorized by the Company;  the Offered  Securities other than
                  any   Contract    Securities    have   been   duly   executed,
                  authenticated,  issued and delivered by the Company;  assuming
                  due authorization, execution and delivery of the Indenture and
                  authentication of the Offered Securities by the Trustee,  such
                  Indenture and the Offered  Securities  other than any Contract
                  Securities  constitute,  and  any  Contract  Securities,  when
                  executed,  issued and delivered in the manner provided in such
                  Indenture  and sold  pursuant to Delayed  Delivery  Contracts,
                  will constitute  valid and legally binding  obligations of the
                  Company enforceable in accordance with their terms, subject to
                  bankruptcy,  insolvency, fraudulent transfer,  reorganization,
                  moratorium and similar laws of general applicability  relating
                  to or  affecting  creditors'  rights  and  to  general  equity
                  principles; and the Offered Securities other than any Contract
                  Securities  conform,  and  any  Contract  Securities,  when so
                  issued and delivered and sold will conform, to the description
                  thereof contained in the Prospectus;



                                       17
<PAGE>

                           (iii) If the Offered  Securities are preferred stock:
                  the Offered Securities have been duly authorized;  the Offered
                  Securities  other  than  any  Contract  Securities  have  been
                  validly  issued  and are  fully  paid and  nonassessable;  any
                  Contract Securities,  when issued, delivered and sold pursuant
                  to Delayed Delivery Contracts,  will be validly issued,  fully
                  paid and nonassessable;  and the Offered Securities other than
                  any Contract Securities conform,  and any Contract Securities,
                  when so  issued,  delivered  and sold,  will  conform,  to the
                  description  thereof  contained  in the  Prospectus;  and  the
                  stockholders  of the Company  have no  preemptive  rights with
                  respect to the Offered Securities;

                           (iv) If the Offered Securities are depositary shares:
                  the Deposit  Agreement has been duly authorized,  executed and
                  delivered  by the  Company;  the  Offered  Securities  and the
                  shares of the Company's  preferred  stock  represented  by the
                  Offered  Securities  have been duly authorized by the Company;
                  the Offered Securities other than any Contract Securities have
                  been  validly  issued  and  delivered  and such  shares of the
                  Company's preferred stock have been validly issued, fully paid
                  and  nonassessable;   any  Contract  Securities  when  issued,
                  delivered  and sold  pursuant to Delayed  Delivery  Contracts,
                  will be validly  issued and  delivered  and such shares of the
                  Company's   preferred   stock   represented  by  the  Contract
                  Securities   will  be   validly   issued,   fully   paid   and
                  nonassessable;  the Offered Securities other than the Contract
                  Securities  conform,  and  any  Contract  Securities  when  so
                  issued,  delivered and sold, will conform,  to the description
                  thereof  contained  in  the  Prospectus;  the  deposit  by the
                  Company  of  the  shares  of  the  Company's  preferred  stock
                  represented by the Offered  Securities in accordance  with the
                  Deposit  Agreement  has been  duly  authorized;  each  Offered
                  Security  represents a legal and valid fractional  interest in
                  shares of the  Company's  preferred  stock as described in the
                  Prospectus;  the  depositary  receipts  evidencing the Offered
                  Securities   entitle  the  holders  thereof  to  the  benefits
                  provided  therein  and  in  the  Deposit  Agreement;  and  the
                  stockholders  of the Company  have no  preemptive  rights with
                  respect  to  the  Offered  Securities  or  the  shares  of the
                  Company's preferred stock represented thereby.

                           (v) If  the  Offered  Securities  are  warrants:  the
                  Warrant  Agreement  has been  duly  authorized,  executed  and
                  delivered  by the  Company;  the  Offered  Securities  and the
                  Warrant  Securities have been duly authorized  (including,  in
                  the case of Warrant Securities constituting depositary shares,
                  the shares of the Company's  preferred  stock  represented  by
                  such depositary shares); the Offered Securities other than any
                  Contract  Securities  have been duly executed,  authenticated,
                  issued  and  delivered  (as the  case may  be);  any  Contract
                  Securities,  when  issued,  delivered  and  sold  pursuant  to
                  Delayed   Delivery   Contracts,   will   be   duly   executed,
                  authenticated,  issued and delivered (as the case may be); the
                  Offered Securities other than the Contract Securities conform,
                  and any Contract Securities when so issued, delivered and sold
                  will  conform,  to the  description  thereof  contained in the
                  Prospectus;  the Warrant Agreement and the Offered  Securities
                  other  than  the  Contract  Securities  constitute,   and  the
                  Contract Securities when executed,  authenticated,  issued and
                  delivered  (as the case may be) in the manner  provided in the
                  Warrant  Agreement  and  sold  pursuant  to  Delayed  Delivery
                  Contracts   will   constitute,   valid  and  legally   binding
                  obligations  of the  Company  enforceable  with  their  terms,
                  subject  to  bankruptcy,   insolvency,   fraudulent  transfer,
                  reorganization,   moratorium   and  similar  laws  of  general
                  applicability  relating to or affecting  creditors' rights and
                  to general equity principles;  and assuming due authorization,
                  execution and delivery of the Warrant Agreement by the Warrant
                  Agent, (a) in the case of Warrant Securities constituting debt
                  securities,   the   applicable   Indenture   have   been  duly
                  authorized,  executed and delivered,  such Warrant  Securities
                  have been duly authorized,  executed,  issued and delivered by
                  the  Company  and  will  conform  to the  description  thereof



                                       18
<PAGE>

                  contained in the Prospectus and,  assuming due  authorization,
                  execution and delivery of the Indenture and  authentication of
                  the Offered Securities by the Trustee, such Indenture and such
                  Warrant  Securities   constitute  valid  and  legally  binding
                  obligations  of the Company,  enforceable  in accordance  with
                  their terms,  subject to  bankruptcy,  insolvency,  fraudulent
                  transfer,  reorganization,  moratorium  and  similar  laws  of
                  general  applicability  relating  to or  affecting  creditors'
                  rights and to general  equity  principles;  (b) in the case of
                  Warrant Securities  constituting  preferred stock, the Warrant
                  Securities   have  been   validly   issued,   fully  paid  and
                  nonassessable and conform to the description thereof contained
                  in the Prospectus, and the stockholders of the Company have no
                  preemptive rights with respect to the Warrant Securities;  (c)
                  in the  case of  Warrant  Securities  constituting  depositary
                  shares,  (i) the Warrant  Securities  have been validly issued
                  and delivered and the shares of the Company's  preferred stock
                  represented  by such  Warrant  Securities  have  been  validly
                  issued,  fully paid and nonassessable and each conforms to the
                  description  thereof  contained  in the  Prospectus,  (ii) the
                  Deposit  Agreement  has been  duly  authorized,  executed  and
                  delivered by the Company and the deposit by the Company of the
                  shares of the Company's  preferred  stock  represented  by the
                  Warrant  Securities in accordance  with the Deposit  Agreement
                  has been duly  authorized  by the Company,  (iii) each Warrant
                  Security  represents a legal and valid fractional  interest in
                  shares of the  Company's  preferred  stock as described in the
                  Prospectus,  and  (iv)  the  Warrant  Securities  entitle  the
                  holders  thereof to the benefits  provided  therein and in the
                  Deposit Agreement, and the stockholders of the Company have no
                  preemptive  rights with respect to the Warrant  Securities  or
                  the  shares  of  the  Company's  preferred  stock  represented
                  thereby;   and  (d)  in  the   case  of   Warrant   Securities
                  constituting  Common  Stock,  the Warrant  Securities  and all
                  outstanding  shares of capital  stock of the Company have been
                  duly authorized,  validly issued, fully paid and nonassessable
                  and  conform  to  the  description  thereof  contained  in the
                  Prospectus,  and  the  stockholders  of the  Company  have  no
                  preemptive rights with respect to the Warrant Securities.

                           (vi) If the Offered  Securities are Common Stock: the
                  Offered  Securities  and all other  outstanding  shares of the
                  Common  Stock of the  Company  have been duly  authorized  and
                  validly issued,  are fully paid and  nonassessable and conform
                  to the description  thereof  contained in the Prospectus;  and
                  the stockholders of the Company have no preemptive rights with
                  respect to the Offered Securities;

                           (vii) If the Offered Securities are convertible:  the
                  Offered Securities other than any Contract Securities are, and
                  any Contract  Securities,  when (if the Offered Securities are
                  debt securities) executed, authenticated, issued and delivered
                  in the manner  provided in the  applicable  Indenture and sold
                  pursuant  to Delayed  Delivery  Contracts  or (if the  Offered
                  Securities  are  preferred  stock) when issued,  delivered and
                  sold  pursuant  to  Delayed   Delivery   Contracts,   will  be
                  convertible  into Common  Stock of the  Company in  accordance
                  with (if they are debt  securities) such Indenture or (if they
                  are preferred  stock) their terms;  the shares of Common Stock
                  initially  issuable upon conversion of the Offered  Securities
                  have been duly  authorized and reserved for issuance upon such
                  conversion  and,  when  issued upon such  conversion,  will be
                  validly issued, fully paid and nonassessable;  the outstanding
                  shares of Common Stock have been duly  authorized  and validly
                  issued,  are fully paid and  nonassessable  and conform to the
                  description  thereof  contained  in the  Prospectus;  and  the
                  stockholders  of the Company  have no  preemptive  rights with
                  respect to the Common Stock;

                           (viii) If the Offered  Securities are Common Stock or
                  are warrants to purchase Common Stock or are convertible  into
                  Common Stock: except as disclosed in the



                                       19
<PAGE>

                  Prospectus,   there   are   no   contracts,    agreements   or
                  understandings  known to such counsel  between the Company and
                  any person  granting  such  person  the right to  require  the
                  Company to file a  registration  statement  under the Act with
                  respect to any  securities of the Company owned or to be owned
                  by such  person or to require  the  Company  to  include  such
                  securities  in  the  securities  registered  pursuant  to  the
                  Registration  Statement or in any securities  being registered
                  pursuant  to any  other  registration  statement  filed by the
                  Company under the Act;

                           (ix) No consent, approval, authorization or order of,
                  or filing with, any  governmental  agency or body or any court
                  is  required  for  the   consummation   of  the   transactions
                  contemplated by the Terms Agreement  (including the provisions
                  of this Agreement),  the applicable  Indenture (if the Offered
                  Securities are debt securities), the Deposit Agreement (if the
                  Offered  Securities  are  depositary  shares)  or the  Warrant
                  Agreement  (if  the  Offered   Securities   are  warrants)  in
                  connection with the issuance or sale of the Offered Securities
                  by the  Company,  except  such  counsel  need not  express any
                  opinion   as  to  (x)   such  as  may  be   required   by  the
                  Communications  Act of 1934,  as amended (the  "Communications
                  Act") or the  rules,  regulations  or  orders  of the  Federal
                  Communications  Commission ("FCC")  promulgated  thereunder or
                  any  comparable  state or local laws,  rules,  regulations  or
                  orders or (y) such as may be  required by the Blue Sky laws of
                  the several states of the United States;

                           (x) The  execution,  delivery and  performance by the
                  Company of the applicable Indenture (if the Offered Securities
                  are debt  securities),  the Deposit  Agreement (if the Offered
                  Securities are depositary  shares),  the Warrant Agreement (if
                  the Offered  Securities  are  warrants),  the Terms  Agreement
                  (including  the  provisions  of this  Agreement)  and,  if the
                  Offered  Securities  are  debt  securities,  preferred  stock,
                  depositary shares or warrants,  any Delayed Delivery Contracts
                  and the  issuance and sale of the Offered  Securities  and, if
                  the Offered  Securities are debt securities,  preferred stock,
                  depositary  shares or warrants,  compliance with the terms and
                  provisions thereof will not result in a breach or violation of
                  any of the terms and  provisions  of, or  constitute a default
                  under,  any  statute,  any  rule,  regulation  or order of any
                  governmental  agency or body or any court having  jurisdiction
                  over the  Company or any  subsidiary  of the Company or any of
                  their  properties,   or,  to  such  counsel's  knowledge,  any
                  agreement  or  instrument  to which  the  Company  or any such
                  subsidiary  is a party or by  which  the  Company  or any such
                  subsidiary is bound including,  but not limited to, the Credit
                  Agreement, or to which any of the properties of the Company or
                  any such  subsidiary is subject,  or the charter or by-laws of
                  the Company or any such  subsidiary,  except that such counsel
                  need  not   express   any   opinion   with   respect   to  the
                  Communications Act or the rules,  regulations or orders of the
                  FCC  promulgated  thereunder or any comparable  state or local
                  laws, rules,  regulations or orders,  and the Company has full
                  power and authority to  authorize,  issue and sell the Offered
                  Securities as contemplated  by the Terms Agreement  (including
                  the provisions of this Agreement);

                           (xi) The Registration  Statement has become effective
                  under the Act, the  Prospectus  was filed with the  Commission
                  pursuant to the  subparagraph of Rule 424(b) specified in such
                  opinion on the date specified therein, and, to the best of the
                  knowledge  of such  counsel,  no  stop  order  suspending  the
                  effectiveness  of  the  Registration  Statement  or  any  part
                  thereof has been issued and no  proceedings  for that  purpose
                  have been instituted or are pending or contemplated  under the
                  Act,  and  the   registration   statements   relating  to  the
                  Registered Securities, as of their respective effective dates,
                  the Registration Statement and the Prospectus,  as of the date
                  of the  Terms  Agreement,  and  any  amendment  or  supplement
                  thereto,  as of its date,  complied as to form in all material
                  respects with the requirements of



                                       20
<PAGE>

                  the  Act,   the  Trust   Indenture   Act  and  the  Rules  and
                  Regulations;  such counsel have no reason to believe that such
                  registration  statements,  as of  their  respective  effective
                  dates, the Registration Statement, as of the date of the Terms
                  Agreement or as of the Closing Date, or any amendment thereto,
                  as of its date or as of the Closing Date, contained any untrue
                  statement of a material  fact or omitted to state any material
                  fact  required to be stated  therein or  necessary to make the
                  statements  therein not misleading or that the Prospectus,  as
                  of the date of the Terms Agreement or as of such Closing Date,
                  or any amendment or supplement  thereto,  as of its date or as
                  of the  Closing  Date,  contained  any untrue  statement  of a
                  material fact or omitted to state any material fact  necessary
                  in order to make the statements  therein,  in the light of the
                  circumstances under which they were made, not misleading;  the
                  descriptions in the  Registration  Statement and Prospectus of
                  statutes, legal and governmental proceedings and contracts and
                  other  documents  are  accurate in all  material  respects and
                  fairly present the information  required to be shown; and such
                  counsel do not know of any legal or  governmental  proceedings
                  required  to be  described  in the  Prospectus  which  are not
                  described  as required or of any  contracts  or documents of a
                  character   required  to  be  described  in  the  Registration
                  Statement or the  Prospectus or to be filed as exhibits to the
                  Registration  Statement  which are not  described and filed as
                  required;  it being  understood that such counsel need express
                  no opinion as to the  financial  statements  or  schedules  or
                  other financial data contained in the  Registration  Statement
                  or the Prospectus,  or with respect to the  Communications Act
                  or the rules,  regulations  and orders of the FCC  promulgated
                  thereunder  or any  comparable  state  or local  laws,  rules,
                  regulations or orders; and

                           (xii) The Terms  Agreement  (including the provisions
                  of this  Agreement)  and, if the Offered  Securities  are debt
                  securities,  preferred stock,  depositary  shares or warrants,
                  any  Delayed  Delivery  Contracts  have been duly  authorized,
                  executed and delivered by the Company.

                  (f) The  Representatives  shall have  received from Sullivan &
         Cromwell, counsel for the Underwriters, such opinion or opinions, dated
         the Closing Date, with respect to the incorporation of the Company, the
         validity of the Offered  Securities,  the Registration  Statement,  the
         Prospectus  and  other  related  matters  as  the  Representatives  may
         require,  and the Company  shall have  furnished  to such  counsel such
         documents as they may request for the purpose of enabling  them to pass
         upon such matters.

                  (g) The  Representatives  shall have  received a  certificate,
         dated the Closing Date, of the Chief  Executive  Officer of the Company
         and the Chief Financial  Officer of the Company in which such officers,
         to the best of their knowledge after  reasonable  investigation,  shall
         state that the  representations  and  warranties of the Company in this
         Agreement are true and correct,  that the Company has complied with all
         agreements  and satisfied all conditions on its part to be performed or
         satisfied hereunder at or prior to the Closing Date, that no stop order
         suspending the  effectiveness of the  Registration  Statement or of any
         part thereof has been issued and no  proceedings  for that purpose have
         been  instituted  or are  contemplated  by  the  Commission  and  that,
         subsequent  to the date of the most recent  financial  statements in or
         incorporated by reference in the Prospectus, there has been no material
         adverse  change,  nor any  development or event involving a prospective
         material  adverse  change,  in  the  condition  (financial  or  other),
         business,  properties  or results of  operations of the Company and its
         subsidiaries taken as a whole except as set forth in or contemplated by
         the Prospectus or as described in such certificate.

                  (h) The Representatives shall have received letters, dated the
         Closing  Date, of Deloitte & Touche LLP and the Other  Auditors,  which
         meet  the  requirements  of  subsections  (a) and (b) of this



                                       21
<PAGE>

         Section,  respectively,  except that the specified  date referred to in
         such  subsection  will be a date not more than  five days  prior to the
         Closing Date for the purposes of this subsection.

                  (i) The Representatives shall have received an opinion,  dated
         the Closing  Date,  of Michael  Milsom,  Esq.,  Vice  President  of the
         Company and Vice President and General Counsel of ATC Teleports,  Inc.,
         stating to the effect that:

                           (i) No  consent,  approval,  authorization,  order or
                  waiver of, or filing  with,  the FCC under the  Communications
                  Act, and the published policies,  rules and regulations of the
                  FCC or any comparable state or local laws, rules,  regulations
                  or  orders  is  required  to  be  obtained  or  made  for  the
                  consummation of the transactions contemplated by the Indenture
                  (if the Offered  Securities are debt securities),  the Deposit
                  Agreement (if the Offered  Securities are depositary  shares),
                  the Warrant Agreement (if the Offered Securities are warrants)
                  and the Terms  Agreement  (including  the  provisions  of this
                  Agreement)  in  connection   with  the  sale  of  the  Offered
                  Securities where the failure to obtain such consent, approval,
                  authorization,  order or waiver or to make such  filing  would
                  have a Material Adverse Effect;

                           (ii) The execution,  delivery and  performance of the
                  Indenture (if the Offered Securities are debt securities), the
                  Deposit  Agreement (if the Offered  Securities  are depositary
                  shares),  the Warrant Agreement (if the Offered Securities are
                  warrants) and the Terms Agreement (including the provisions of
                  this  Agreement)  and  the  consummation  of the  transactions
                  therein  contemplated will not result in a breach or violation
                  of any of the terms or provisions  of, or constitute a default
                  under  the  Communications  Act or any FCC  regulation,  rule,
                  published  policy  or order or any  comparable  state or local
                  laws, rules,  regulations or orders that would have a Material
                  Adverse Effect; and

                           (iii) To the knowledge of such counsel,  there are no
                  administrative  or judicial  proceedings  pending  before,  or
                  threatened  by,  the FCC with  respect  to the  Company or any
                  subsidiary of the Company,  or any towers owned or operated by
                  the  Company  or  any  subsidiary  of  the  Company  that,  if
                  determined  adversely,  could reasonably be expected to have a
                  Material Adverse Effect.

                  (j) If the Offered  Securities  are Common Stock and there are
         Selling  Stockholders,  the  Representatives  shall  have  received  an
         opinion,  dated  the  Closing  Date,  of the  counsel  for the  Selling
         Stockholders, to the effect that:

                           (i)  Each   Selling   Stockholder   had   valid   and
                  unencumbered title to the Offered Securities delivered by such
                  Selling  Stockholder  on such Closing Date and had full right,
                  power and authority to sell, assign,  transfer and deliver the
                  Offered  Securities  delivered by such Selling  Stockholder on
                  such Closing Date; and the several  Underwriters have acquired
                  valid  and  unencumbered   title  to  the  Offered  Securities
                  purchased  by  them  from  the  Selling  Stockholders  on such
                  Closing Date;

                           (ii) No consent, approval, authorization or order of,
                  or filing with, any  governmental  agency or body or any court
                  is required to be obtained or made by any Selling  Stockholder
                  for the consummation of the  transactions  contemplated by the
                  Custody  Agreements  or the  Terms  Agreement  (including  the
                  provisions of this  Agreement) in connection  with the sale of
                  the  Offered  Securities  sold  by the  Selling



                                       22
<PAGE>

                  Stockholders, except such as have been obtained and made under
                  the Act and such as may be  required  under  state  securities
                  laws;

                           (iii) The execution,  delivery and performance of the
                  Custody  Agreement  and the  Terms  Agreement  (including  the
                  provisions  of this  Agreement)  and the  consummation  of the
                  transactions  therein contemplated will not result in a breach
                  or  violation  of  any of  the  terms  or  provisions  of,  or
                  constitute a default under,  the certificate of  incorporation
                  or  bylaws  or  agreement  of  limited  partnership  or  other
                  constituent  document  of such  Selling  Stockholder  (if such
                  Selling Stockholder is a corporation or limited partnership or
                  other entity) or any statute, any rule, regulation or order of
                  any   governmental   agency  or  body  or  any  court   having
                  jurisdiction  over  any  Selling  Stockholder  or any of their
                  properties or any agreement or instrument to which any Selling
                  Stockholder is a party or by which any Selling  stockholder is
                  bound  or to  which  any of  the  properties  of  any  Selling
                  Stockholder is subject, or the constituent documents,  if any,
                  of such Selling Stockholder;

                           (iv)  The  Power  of  Attorney  and  related  Custody
                  Agreement  with respect to each Selling  Stockholder  has been
                  duly  authorized,  executed  and  delivered  by  such  Selling
                  Stockholder   and   constitute   valid  and  legally   binding
                  obligations  of each such Selling  Stockholder  enforceable in
                  accordance with their terms subject to bankruptcy, insolvency,
                  fraudulent  transfer,  reorganization,  moratorium and similar
                  laws  of  general  applicability   relating  to  or  affecting
                  creditor's rights and to general equity principles; and

                           (v) The Terms Agreement  (including the provisions of
                  this  Agreement)  has  been  duly  authorized,   executed  and
                  delivered by each Selling Stockholder.

The Company and Selling  Stockholders,  if any, will furnish the Representatives
with such conformed copies of such opinions, certificates, letters and documents
as the Representatives  reasonably request. The Lead Underwriter may in its sole
discretion waive on behalf of the Underwriters compliance with any conditions to
the  obligations  of  the  Underwriters  under  this  Agreement  and  the  Terms
Agreement.

         6. Indemnification and Contribution. (a) The Company will indemnify and
hold  harmless  each  Underwriter  against  any  losses,   claims,   damages  or
liabilities,  joint or several,  to which such  Underwriter  may become subject,
under  the  Act or  otherwise,  insofar  as  such  losses,  claims,  damages  or
liabilities  (or actions in respect  thereof) arise out of or are based upon any
untrue  statement or alleged untrue  statement of any material fact contained in
the  Registration  Statement,  the  Prospectus,  or any  amendment or supplement
thereto,  or  any  related  preliminary  prospectus  or  preliminary  prospectus
supplement,  or arise out of or are based upon the omission or alleged  omission
to state therein a material  fact required to be stated  therein or necessary to
make the statements therein not misleading,  and will reimburse each Underwriter
for any legal or other  expenses  reasonably  incurred  by such  Underwriter  in
connection  with  investigating  or  defending  any such  loss,  claim,  damage,
liability or action as such expenses are incurred;  provided,  however, that the
Company  will not be liable in any such case to the  extent  that any such loss,
claim, damage or liability arises out of or is based upon an untrue statement or
alleged  untrue  statement in or omission or alleged  omission  from any of such
documents in reliance upon and in conformity with written information  furnished
to  the  Company  by  any  Underwriter  through  the  Representatives,  if  any,
specifically for use therein,  it being understood and agreed that the only such
information  furnished by any Underwriter consists of the information  described
as such in the Terms Agreement.  The foregoing  indemnity agreement with respect
to any untrue  statement  or omission in the  Preliminary  Prospectus  shall not
inure to the benefit of any Underwriter  from whom the person asserting any such
losses,  claims,  damages or liabilities  purchased the Offered  Securities if a
copy of the  Prospectus  (as then amended or  supplemented  if the Company shall
have furnished any  amendments or supplements  thereto) was not sent or given by
or on  behalf of such  Underwriter  to such  person  at or prior to



                                       23
<PAGE>

the written  confirmation of the sale of the Offered  Securities to such person,
and the  Prospectus  (as amended and  supplemented)  would have cured the defect
giving rise to such losses, claims, damages or liabilities.

         (b) If the Offered  Securities  are Common  Stock and there are Selling
Stockholders, each Selling Stockholder severally and not jointly, will indemnify
and hold  harmless  each  Underwriter  against  any losses,  claims,  damages or
liabilities  to which  such  Underwriter  may become  subject,  under the Act or
otherwise, insofar as such losses, claims, damages or liabilities (or actions in
respect  thereof) arise out of or are based upon any untrue statement or alleged
untrue statement of any material fact contained in any  Registration  Statement,
the  Prospectus,  or  any  amendment  or  supplement  thereto,  or  any  related
preliminary  prospectus,  or arise  out of or are  based  upon the  omission  or
alleged  omission to state therein a material fact required to be stated therein
or necessary to make the statements  therein not misleading,  and will reimburse
each  Underwriter  for any legal or other expenses  reasonably  incurred by such
Underwriter in connection with  investigating or defending any such loss, claim,
damage,  liability or action as such expenses are incurred;  provided,  however,
that the Selling  Stockholders will not be liable in any such case to the extent
that any such loss, claim, damage or liability arises out of or is based upon an
untrue  statement or alleged untrue statement in or omission or alleged omission
from any of such  documents  in reliance  upon and in  conformity  with  written
information   furnished   to  the   Company  by  an   Underwriter   through  the
Representatives  specifically for use therein; provided, further, that a Selling
Stockholder  shall  only be  subject to such  liability  to the extent  that the
untrue statement or alleged untrue statement or omission or alleged omission was
made in reliance upon and in conformity  with written  information  furnished to
the  Company by such  Selling  Stockholder  specifically  for use  therein.  The
foregoing  indemnity  agreement with respect to any untrue statement or omission
in the Preliminary  Prospectus shall not inure to the benefit of any Underwriter
from whom the person asserting any such losses,  claims,  damages or liabilities
purchased the Offered Securities if a copy of the Prospectus (as then amended or
supplemented  if the Company shall have  furnished any amendments or supplements
thereto)  was not sent or  given by or on  behalf  of such  Underwriter  to such
person  at or  prior to the  written  confirmation  of the  sale of the  Offered
Securities to such person, and the Prospectus (as amended or supplemented) would
have  cured  the  defect  giving  rise  to  such  losses,   claims,  damages  or
liabilities.   In  no  event,  however,  shall  the  liability  of  any  Selling
Stockholder for indemnification under this Section 6(b) exceed the lesser of (i)
the proceeds  received by such Selling  Stockholder from the Underwriters in the
Offering  and (ii)  that  portion  of the  total  losses,  claims,  damages  and
liabilities  for which  the  Underwriters  and any  controlling  persons  may be
subject to  indemnification  hereunder equal to the ratio of the total number of
Offered Securities sold hereunder by such Selling Stockholder as compared to the
total Offered Securities sold hereunder by all Selling Stockholders.

         (c) Each Underwriter will severally and not jointly  indemnify and hold
harmless the Company and each Selling  Stockholder,  if any, against any losses,
claims,  damages or liabilities to which the Company or such Selling Stockholder
or may become  subject,  under the Act or  otherwise,  insofar  as such  losses,
claims,  damages or liabilities (or actions in respect  thereof) arise out of or
are based upon any untrue  statement or alleged untrue statement of any material
fact contained in the Registration Statement,  the Prospectus,  or any amendment
or supplement  thereto,  or any related  preliminary  prospectus or  preliminary
prospectus  supplement,  or arise out of or are based upon the  omission  or the
alleged  omission to state therein a material fact required to be stated therein
or necessary to make the statements therein not misleading,  in each case to the
extent,  but only to the extent,  that such untrue  statement or alleged  untrue
statement  or omission  or alleged  omission  was made in  reliance  upon and in
conformity with written information furnished to the Company by such Underwriter
through the  Representatives,  if any,  specifically  for use therein,  and will
reimburse  any legal or other  expenses  reasonably  incurred by the Company and
such Selling  Stockholder in connection with investigating or defending any such
loss, claim, damage, liability or action as such expenses are incurred, it being
understood  and  agreed  that  the  only  such  information   furnished  by  any
Underwriter  consists  of  the  information  described  as  such  in  the  Terms
Agreement.



                                       24
<PAGE>

         (d) Promptly after receipt by an  indemnified  party under this Section
of notice of the commencement of any action,  such indemnified  party will, if a
claim in respect thereof is to be made against the indemnifying  party under, to
the extent applicable, subsection (a), (b) or (c) above, notify the indemnifying
party  of  the  commencement   thereof;  but  the  omission  so  to  notify  the
indemnifying  party will not relieve it from any liability  which it may have to
any indemnified party otherwise than under, to the extent applicable, subsection
(a),  (b) or (c)  above.  In  case  any  such  action  is  brought  against  any
indemnified  party and it notifies the  indemnifying  party of the  commencement
thereof,  the indemnifying party will be entitled to participate therein and, to
the extent that it may wish, jointly with any other indemnifying party similarly
notified,  to assume the defense  thereof,  with  counsel  satisfactory  to such
indemnified  party (who shall not,  except with the  consent of the  indemnified
party,  be  counsel  to the  indemnifying  party),  and  after  notice  from the
indemnifying  party to such  indemnified  party of its election so to assume the
defense thereof,  the indemnifying  party will not be liable to such indemnified
party under this Section for any legal or other expenses  subsequently  incurred
by such  indemnified  party in  connection  with the defense  thereof other than
reasonable  costs of  investigation.  No indemnifying  party shall,  without the
prior written  consent of the  indemnified  party,  effect any settlement of any
pending or  threatened  action in respect of which any  indemnified  party is or
could have been a party and indemnity  could have been sought  hereunder by such
indemnified  party unless such settlement (i) includes an unconditional  release
of such indemnified  party from all liability on any claims that are the subject
matter  of such  action  and (ii)  does not  include  a  statement  as to, or an
admission  of,  fault,  culpability  or a  failure  to  act by or  behalf  of an
indemnified party.

         (e) If the indemnification  provided for in this Section is unavailable
or  insufficient  to hold  harmless an  indemnified  party under,  to the extent
applicable, subsection (a), (b) or (c) above, then each indemnifying party shall
contribute to the amount paid or payable by such  indemnified  party as a result
of the  losses,  claims,  damages or  liabilities  referred to in, to the extent
applicable,  subsection  (a),  (b) or (c)  above  (i) in such  proportion  as is
appropriate  to reflect the  relative  benefits  received by the Company and the
Selling Stockholders,  if any, on the one hand and the Underwriters on the other
from the offering of the Offered  Securities or (ii) if the allocation  provided
by clause (i) above is not permitted by applicable law, in such proportion as is
appropriate to reflect not only the relative  benefits referred to in clause (i)
above but also the relative  fault of the Company and the Selling  Stockholders,
if any, on the one hand and the Underwriters on the other in connection with the
statements  or  omissions  which  resulted in such  losses,  claims,  damages or
liabilities as well as any other relevant equitable considerations. The relative
benefits  received by the Company and the Selling  Stockholders,  if any, on the
one hand and the  Underwriters  on the  other  shall be deemed to be in the same
proportion  as the  total  net  proceeds  from the  offering  (before  deducting
expenses) received by the Company and the Selling Stockholders,  if any, bear to
the total underwriting  discounts and commissions  received by the Underwriters.
The relative  fault shall be  determined  by reference  to, among other  things,
whether  the  untrue or  alleged  untrue  statement  of a  material  fact or the
omission or alleged  omission to state a material  fact  relates to  information
supplied by the Company, the Selling  Stockholders,  if any, or the Underwriters
and  the  parties'  relative  intent,  knowledge,   access  to  information  and
opportunity to correct or prevent such untrue statement or omission.  The amount
paid by an  indemnified  party as a result of the  losses,  claims,  damages  or
liabilities  referred to in the first  sentence of this  subsection (e) shall be
deemed  to  include  any legal or other  expenses  reasonably  incurred  by such
indemnified  party in connection with  investigating  or defending any action or
claim  which  is  the  subject  of  this  subsection  (e).  Notwithstanding  the
provisions  of  this  subsection  (e),  no  Underwriter  shall  be  required  to
contribute  any amount in excess of the amount by which the total price at which
the Offered  Securities  underwritten  by it and  distributed to the public were
offered to the public  exceeds the amount of any damages which such  Underwriter
has otherwise  been  required to pay by reason of such untrue or alleged  untrue
statement  or  omission  or alleged  omission.  No person  guilty of  fraudulent
misrepresentation  (within  the  meaning of  Section  11(f) of the Act) shall be
entitled to  contribution  from any person who was not guilty of such fraudulent
misrepresentation.  The  Underwriters'  obligations  in this  subsection  (e) to
contribute   are  several  in  proportion  to  their   respective   underwriting
obligations and not joint.



                                       25
<PAGE>

         (f) The  obligations  of the Company and the Selling  Stockholders,  if
any, under this Section shall be in addition to any liability  which the Company
may otherwise have and shall extend, upon the same terms and conditions, to each
person, if any, who controls any Underwriter  within the meaning of the Act; and
the obligations of the  Underwriters  under this Section shall be in addition to
any liability  which the  respective  Underwriters  may otherwise have and shall
extend, upon the same terms and conditions,  to each director of the Company, to
each  officer of the Company who has signed the  Registration  Statement  and to
each person, if any, who controls the Company within the meaning of the Act.

         7. Default of Underwriters.  If any Underwriter or Underwriters default
in their  obligations  to purchase  Offered  Securities  on the Closing Date (or
First Closing date if there is an Over-Allotment Option) or any Optional Closing
Date, if any, under the Terms Agreement and the aggregate  principal  amount (if
debt  securities)  or number of shares  (if  preferred  stock,  Common  Stock or
depositary  shares) or warrants (if  warrants) of Offered  Securities  that such
defaulting  Underwriter or  Underwriters  agreed but failed to purchase does not
exceed  10% of the total  principal  amount  (if debt  securities)  or number of
shares (if preferred stock,  Common Stock or depositary  shares) or warrants (if
warrants) of Offered  Securities,  the Lead  Underwriter  may make  arrangements
satisfactory  to the  Company  and the  Selling  Stockholders,  if any,  for the
purchase of such  Offered  Securities  by other  persons,  including  any of the
Underwriters,  but if no such  arrangements  are made by the Closing  Date,  the
non-defaulting Underwriters shall be obligated severally, in proportion to their
respective  commitments  under the Terms Agreement  (including the provisions of
this  Agreement),  to  purchase  the  Offered  Securities  that such  defaulting
Underwriters  agreed but failed to purchase.  If any Underwriter or Underwriters
so default and the aggregate  principal amount (if debt securities) or number of
shares (if preferred stock,  Common Stock or depositary  shares) or warrants (if
warrants) of Offered  Securities  with respect to which such default or defaults
occur exceeds 10% of the total principal  amount (if debt  securities) or number
of shares (if preferred  stock,  Common Stock or depositary  shares) or warrants
(if warrants) of Offered  Securities and  arrangements  satisfactory to the Lead
Underwriter, the Company and the Selling Stockholders,  if any, for the purchase
of such Offered  Securities  by other persons are not made within 36 hours after
such default,  the Terms Agreement will terminate  without liability on the part
of any non-defaulting Underwriter,  the Company or the Selling Stockholders,  if
any,  except as provided  in Section 8  (provided  that in the event there is an
Over-Allotment  Option,  if such default occurs with respect to Optional Offered
Securities  after the First Closing Date, the Terms Agreement will not terminate
as to the Firm Offered Securities or any Optional Offered  Securities  purchased
prior to such  termination).  As used in this Agreement,  the term "Underwriter"
includes any person  substituted for an Underwriter under this Section.  Nothing
herein will relieve a defaulting  Underwriter from liability for its default. If
the Offered  Securities are debt  securities,  preferred stock or warrants,  the
respective  commitments  of the several  Underwriters  for the  purposes of this
Section  shall be  determined  without  regard to  reduction  in the  respective
Underwriters'  obligations to purchase the principal amount (if debt securities)
or number of shares (if preferred stock,  Common Stock or depositary  shares) or
warrants (if warrants) of the Offered  Securities set forth opposite their names
in the Terms Agreement as a result of Delayed Delivery Contracts entered into by
the Company.

         8. Survival of Certain Representations and Obligations.  The respective
indemnities, agreements, representations, warranties and other statements of the
Selling Stockholders,  if any, of the Company or its officers and of the several
Underwriters set forth in or made pursuant to the Terms Agreement (including the
provisions of this Agreement)  will remain in full force and effect,  regardless
of any  investigation,  or  statement as to the results  thereof,  made by or on
behalf of any Underwriter, the Selling Stockholders,  if any, the Company or any
of their  respective  representatives,  officers or directors or any controlling
person, and will survive delivery of and payment for the Offered Securities.  If
the Terms Agreement is terminated pursuant to Section 7 or if for any reason the
purchase of the Offered  Securities by the Underwriters is not consummated,  the
Company shall remain responsible for the expenses to be paid or reimbursed by it
pursuant to Section 4 and the respective obligations of the Company, the Selling
Stockholders, if any, and the Underwriters pursuant to Section 6 shall remain in
effect.  If the purchase of the Offered  Securities by the  Underwriters  is not
consummated  for any reason other than solely because of the  termination of the
Terms  Agreement  pursuant to Section 7 or the occurrence of any event specified



                                       26
<PAGE>

in clause  (iii),  (iv) or (v) of Section  5(d),  the  Company  and the  Selling
Stockholders,  if any, will  reimburse the  Underwriters  for all  out-of-pocket
expenses  (including fees and disbursements of counsel)  reasonably  incurred by
them in connection with the offering of the Offered Securities.

         9. Notices.  All  communications  hereunder  will be in writing and, if
sent to the Underwriters, will be mailed, delivered or telegraphed and confirmed
to them at their address  furnished to the Company in writing for the purpose of
communications  hereunder or, if sent to the Company, will be mailed,  delivered
or telegraphed and confirmed to it at 116 Huntington  Avenue,  Boston, MA 02116,
Attention:  Chief Executive Officer or, if sent to the Selling Stockholders,  if
any,  will be mailed,  delivered or  telegraphed  and confirmed to them at their
address  furnished  to the Company in writing for the purpose of  communications
hereunder.

         10. Successors.  The Terms Agreement  (including the provisions of this
Agreement)  will inure to the benefit of and be binding  upon the  Company,  the
Selling  Stockholders,  if any, and such  Underwriters  as are identified in the
Terms Agreement and their respective personal representatives and successors and
the officers and directors and controlling persons referred to in Section 6, and
no other person will have any right or obligation hereunder.

         11.  Representation of Underwriters.  Any Representatives  will act for
the several Underwriters in connection with the financing described in the Terms
Agreement,  and any action under such Terms Agreement  (including the provisions
of  this  Agreement)  taken  by  the  Representatives  jointly  or by  the  Lead
Underwriter will be binding upon all the Underwriters.  The Selling Stockholders
will be represented  by the  representatives  identified in the Terms  Agreement
(the "Selling Stockholder  Representatives") in connection with the transactions
described  in the Terms  Agreement,  and any action  under such Terms  Agreement
(including  the  provisions  of this  Agreement)  taken  by any of them  will be
binding upon all the Selling Stockholders.

         12. Counterparts.  The Terms Agreement may be executed in any number of
counterparts,  each of which  shall be  deemed to be an  original,  but all such
counterparts shall together constitute one and the same Agreement.

         13.  Applicable  Law. This Agreement and the Terms  Agreement  shall be
governed by, and  construed  in  accordance  with,  the laws of the State of New
York, without regard to principles of conflicts of laws.

         The Company hereby  submits to the  non-exclusive  jurisdiction  of the
Federal and state  courts in the Borough of Manhattan in The City of New York in
any  suit or  proceeding  arising  out of or  relating  to the  Terms  Agreement
(including the provisions of this  Agreement) or the  transactions  contemplated
thereby.


                                       27
<PAGE>


                                                                         ANNEX I





                           AMERICAN TOWER CORPORATION
                                   ("Company")


                                 Debt Securities


                                 TERMS AGREEMENT



                                                               ________ __, 20__


To:  The [Representative[s] of the] Underwriters identified herein




Dear Sirs:

     The  undersigned  agrees  to sell to the  several  Underwriters  named  [in
Schedule A hereto] [below] for their respective accounts,  on and subject to the
terms and conditions of the  Underwriting  Agreement  filed as an exhibit to the
Company's   registration   statement[s]  on  Form  S-3  (No.   333-37988[;   No.
333-________])  ("Underwriting  Agreement"),  the following securities ("Offered
Securities") on the following terms:

         Title:  [  %] [Floating Rate]--[Subordinated]--Notes--Debentures--Bonds
--Due                  .

         Principal Amount:  $           .

         Over-Allotment Option:  [Yes] [No]

         [Over-Allotment Option Percentage:]

         Interest:  [   % per annum, from          , 20__,  payable semiannually
on            and            , commencing          , 20__, to holders of  record
on the preceding             or          ,  as the case may be.]  [Zero coupon.]



                                       28
<PAGE>

         Maturity:               , 20__.

         Optional Redemption:

         Sinking Fund:

         Trustee:

         Indenture:  Indenture,  dated as of  [_______  __],  2000,  between the
Company and the above-named Trustee.

         Listing:  [None.] [New York Stock  Exchange.]  [The Nasdaq Stock Market
Inc.'s National Market.]

         Delayed Delivery  Contracts:  [None.] [Delivery Date[s] shall be
              ,  20__.  Underwriters' fee is    % of the principal amount of the
Contract Securities.]

         Purchase  Price:        % of principal  amount,  plus accrued  interest
[, if any,] from                 , 20__.

         Expected Reoffering Price:     % of principal amount, subject to change
by the [Representative[s] [Underwriters].

         Closing:              A.M. on                 , 20__, at              ,
in Federal (same day) funds.

         Settlement and Trading:  [Physical certificated form.] [Book-Entry Only
via DTC. The Offered Securities [will] [will not] trade in DTC's Same Day  Funds
Settlement System.]

         Blackout:  Until       days after the Closing Date.

         [Name[s] and Address[es] of [Representative[s]] [Underwriter[s]]:]

         The  respective  principal  amounts  of the  Offered  Securities  to be
     purchased by each of the Underwriters are set forth opposite their names in
     Schedule A hereto.

         The provisions of the Underwriting Agreement are incorporated herein by
reference.

         The  Offered  Securities  will  be  made  available  for  checking  and
packaging at the office of          at least 24 hours prior to the Closing Date.

         For  purposes  of  Section 6 of the  Underwriting  Agreement,  the only
     information  furnished  to the  Company by any  Underwriter  for use in the
     Prospectus  consists of [(i)] the following  information  in the Prospectus
     furnished on behalf of each  Underwriter:  the last paragraph at the bottom
     of the  prospectus  supplement  cover  page  concerning  the  terms  of the
     offering by the Underwriters, the legend concerning over-allotments--and--,
     --stabilizing [and passive market making] on the inside front cover page of
     the prospectus supplement--and--,  --the concession and reallowance figures
     appearing  in  the  paragraph  under  the  caption  "Underwriting"  in  the
     prospectus  supplement  [If paragraph  regarding  passive  market making is
     included,  insert--and the information contained in the paragraph under the
     caption  "Underwriting"  in  the  prospectus  supplement]  [If  applicable,
     insert--;  and (ii) the following  information in the prospectus supplement
     furnished on behalf of [insert name of Underwriter]:



                                       29
<PAGE>

     [insert  description  of   information,    such  as  material  relationship
     disclosure under the caption "Underwriting" in the prospectus supplement].
     (1)

         If the  foregoing  is in  accordance  with  your  understanding  of our
     agreement,  kindly sign and return to the  Company one of the  counterparts
     hereof,  whereupon it will become a binding  agreement  between the Company
     and the several Underwriters in accordance with its terms.

                                            Very truly yours,

                                            AMERICAN TOWER CORPORATION


                                            By.................................
                                               [Insert title]
The foregoing Terms Agreement is hereby
  confirmed and accepted as of the date
  first above written.

[If no co-representative, use first
  confirmation form. If co-representative,
  use second.]


     ........................................


         By..................................................
            [Insert title]

         [Acting on behalf of itself and as the
            Representative of the several Underwriters.]


     ........................................


     ..........................................................


     .........................................................,

         [Acting on behalf of themselves and as the
            Representatives of the several Under-writers.]

     By ........................................


     By......................................................
        [Insert title]


--------
         (1) Special care should be taken to ensure that the  description of the
information,  including  caption  references  and any  references  to particular
paragraphs or sentences, matches the final Prospectus.


                                       30
<PAGE>

<TABLE>
<CAPTION>
                                                SCHEDULE A


                                                                          Principal   [Principal
                              Underwriter                                  [Firm]      Optional
                                                                           Amount       Amount]
<S>                                                                      <C>         <C>
                                                                                     $
















                                                                                     ------------
               Total..........................................                       $
                                                                                     ============
</TABLE>


                                       31
<PAGE>

                                                                        ANNEX II





                           AMERICAN TOWER CORPORATION
                                   ("Company")


                                    Warrants


                                 TERMS AGREEMENT



                                                            ___________ __, 20__


To:  The [Representative[s] of the] Underwriters identified herein




Dear Sirs:

         The undersigned  agrees to sell to the several  Underwriters  named [in
Schedule A hereto] [below] for their respective accounts,  on and subject to the
terms and conditions of the  Underwriting  Agreement  filed as an exhibit to the
Company's   registration   statement[s]  on  Form  S-3  (No.   333-37988[;   No.
333-________])  ("Underwriting  Agreement"),  the following securities ("Offered
Securities") on the following terms:

                  Description of Warrants:

                  Title of Warrant:

                  Warrant Agent:

                  Warrant Agreement:  Warrant Agreement, dated as of [_____ __],
         2000, between the            Company and the above-named Warrant Agent.

                  Warrant exercise price currency and date:

                  Over-Allotment Option:  [Yes] [No]

                  [Over-Allotment Option Percentage:]

                  Principal amount or number of Securities
                    issuable upon exercise of Warrant:

                  Date after which Warrants may be exercised:



                                       32
<PAGE>

                  Expiration Date:

                  Detachable Date:

                  Description of Securities issuable
                    Upon exercise of Warrants:

                  Listing:  [None.] [New York Stock Exchange.][The Nasdaq  Stock
Market Inc.'s National Market.]

                  Delayed Delivery Contracts:   [None.] [Delivery Date[s]  shall
be                ,   20__.  Underwriters' fee is $             per share of the
Contract Securities.]

                  Purchase Price:  $       per share [If preferred  stock issue,
insert--plus accrued dividends[,if any,] from                , 20  ].

                  Expected Reoffering Price:  $     per share, subject to change
by the  [Representative[s]] [Underwriters].

                  Closing:             A.M.  on                 ,  20__, at
                ,  in Federal (same day) funds.

                  Settlement and Trading:  [Physical certificated form.]
[Book-Entry Only via DTC. The Offered Securities [will][will not] trade in DTC's
Same Day Funds Settlement System.]

                  Blackout:  Until      days after the Closing Date.

                  [Name[s] and Address[es] of [Representative[s]]
[Underwriter[s]]:]

                  The  respective  number  of  the  Offered   Securities  to  be
purchased  by each of the  Underwriters  are set forth  opposite  their names in
Schedule A hereto.

                  The provisions of the Underwriting  Agreement are incorporated
herein by reference.

                  The Offered Securities will be made available for checking and
packaging at the office of              at least 24 hours  prior to the  Closing
Date.

                  For purposes of Section 6 of the Underwriting  Agreement,  the
only  information  furnished  to the Company by any  Underwriter  for use in the
Prospectus  consists  of  [(i)]  the  following  information  in the  Prospectus
furnished on behalf of each Underwriter:  the concession and reallowance figures
appearing in the paragraph  under the caption  "Underwriting"  in the prospectus
supplement   [If  paragraph   regarding   passive  market  making  is  included,
insert--and  the  information  contained  in the  paragraph  under  the  caption
"Underwriting" in the prospectus supplement] [If applicable,  insert--; and (ii)
the following  information in the prospectus  supplement  furnished on behalf of
[insert  name of  Underwriter]:  [insert  description  of  information,  such as
material  relationship  disclosure  under  the  caption  "Underwriting"  in  the
prospectus supplement].(2)

--------
         (2) Special care should be taken to ensure that the  description of the
information,  including  caption  references  and any  references  to particular
paragraphs or sentences, matches the final Prospectus.



                                       33
<PAGE>

                  If the foregoing is in accordance with your  understanding  of
our  agreement,  kindly sign and return to the  Company one of the  counterparts
hereof, whereupon it will become a binding agreement between the Company and the
several Underwriters in accordance with its terms.

                                            Very truly yours,

                                            AMERICAN TOWER CORPORATION


                                            By.................................
                                               [Insert title]

The foregoing Terms Agreement is hereby
  confirmed and accepted as of the date
  first above written.

[If no co-representative, use first
  confirmation form. If co-representative,
  use second.]


     ........................................


         By..................................................
            [Insert title]


         [Acting on behalf of itself and as the
            Representative  of the  several
            Underwriters.]


     ........................................


     ...........................................................


     ...........................................................

         [Acting on  behalf of themselves and as the
            Representatives of the
            several Underwriters.]


     By ........................................



     By.......................................................
        [Insert title]


                                       34
<PAGE>

<TABLE>
<CAPTION>
                                   SCHEDULE A

                                                                                 Number of     [Number of
     Underwriter                                                                   [Firm]       Optional
                                                                                  Warrants     Warrants]
<S>                                                                             <C>           <C>























                                                                                              -------------
  Total.....................................................................
                                                                                              =============
</TABLE>


                                       35
<PAGE>

                                                                       ANNEX III





                           AMERICAN TOWER CORPORATION
                                   ("Company")


                                [Preferred Stock]
                                 [Common Stock]
                               [Depositary Shares]


                                 TERMS AGREEMENT



                                                            ___________ __, 20__


To:  The [Representative[s] of the] Underwriters identified herein




Dear Sirs:

         The undersigned  agrees to sell to the several  Underwriters  named [in
Schedule A hereto] [below] for their respective accounts,  on and subject to the
terms and conditions of the  Underwriting  Agreement  filed as an exhibit to the
Company's registration statements on Form S-3 (No. 333-37988;  No. 333-________)
("Underwriting  Agreement"),  the following securities ("Offered Securities") on
the following terms:

               Title:

                  Number of [Depositary] Shares:

                  Over-Allotment Option:  [Yes] [No]

                  [Over-Allotment Option Percentage:]

                  [Determination of Allocation of Over-Allotment  Option between
                    the Company and the Selling Stockholders:]

                  [Dividend Rate:]

                  [Optional Redemption:]

                  [Sinking Fund:]



                                       36
<PAGE>

                  Listing:  [None.] [New York Stock Exchange.] [The Nasdaq Stock
Market Inc.'s National Market.]

                  Delayed Delivery Contracts:   [None.] [Delivery Date[s]  shall
be                ,   20__. Underwriters' fee is $              per share of the
Contract Securities.]

                  Purchase Price:  $       per [Depositary]  share [If preferred
stock issue or depositary share, insert--plus accrued dividends[, if any,]  from
                , 20__].

                  Expected Reoffering Price:  $        per  [Depositary]  share,
subject to change by the [Representative[s]] [Underwriters].

                  [Name of Depositary:]

                  [Deposit Agreement: Deposit Agreement, dated as of [_____ __],
                                      2000,  among the Company, the  above-named
                                      Depositary and the holders  from  time  to
                                      time   of   depositary   receipts   issued
                                      thereunder.]

                  [Fraction of a Share equal to one Depositary Share:]

                  [SEC File No. of Selling Stockholder Registration Statement:]

                  [Custodian]

                  [Name[s] and Address[es] of Selling Stockholder[s]:]

                  Closing:             A.M.  on                 ,  20__, at
                ,  in Federal (same day) funds.

                  Underwriter[s']['s]   Compensation:   $            payable  to
the [Representative[s] for  the proportionate accounts of the] Underwriter[s] on
the Closing Date.

                  Blackout:  Until    days after the Closing Date.

                  [Name[s] and Address[es] of [Representative[s]]
[Underwriter[s]]:]

                  [Name[s] and Address[es] of Selling Stockholder
Representative[s]:]

                  The respective  numbers of shares of the Offered Securities to
be purchased by each of the  Underwriters  are set forth opposite their names in
Schedule A hereto. [The respective number of shares of the Offered Securities to
be sold by [each of] the Selling  Stockholder[s]  are set forth opposite [their]
[its] name[s] in Schedule B hereto.]

                  The provisions of the Underwriting  Agreement are incorporated
herein by reference.

                  The Offered Securities will be made available for checking and
packaging at the office of              at least 24 hours  prior to the  Closing
Date.

                  For purposes of Section 6 of the Underwriting  Agreement,  the
only  information  furnished  to the Company by any  Underwriter  for use in the
Prospectus  consists  of  [(i)]  the  following  information  in the  Prospectus
furnished on behalf of each Underwriter:  the concession and reallowance figures
appearing in the paragraph  under the caption  "Underwriting"  in the prospectus
supplement   [If  paragraph   regarding   passive



                                       37
<PAGE>

market  making  is  included,  insert--and  the  information  contained  in  the
paragraph  under the caption  "Underwriting"  in the prospectus  supplement] [If
applicable,  insert--;  and (ii) the  following  information  in the  prospectus
supplement  furnished  on  behalf  of  [insert  name  of  Underwriter]:  [insert
description of information,  such as material relationship  disclosure under the
caption "Underwriting" in the prospectus supplement].(2)

--------
         (2) Special care should be taken to ensure that the  description of the
information,  including  caption  references  and any  references  to particular
paragraphs or sentences, matches the final Prospectus.


                                       38
<PAGE>

                  If the foregoing is in accordance with your  understanding  of
our  agreement,  kindly sign and return to the  Company one of the  counterparts
hereof, whereupon it will become a binding agreement between the Company and the
several Underwriters in accordance with its terms.

                                            Very truly yours,

                                            AMERICAN TOWER CORPORATION


                                            By.................................
                                               [Insert title]



                                            [Each of the Selling Stockholders
                                             Listed on Schedule B Hereto



                                            By.................................]


The foregoing Terms Agreement is hereby
  confirmed and accepted as of the date
  first above written.

[If no co-representative, use first
  confirmation form. If co-representative,
  use second.]


     ........................................


         By..................................................
            [Insert title]


         [Acting on behalf of itself and as the
            Representative  of the  several
            Underwriters.]


     ........................................


     ...........................................................


     ...........................................................

         [Acting on  behalf of themselves and as the
            Representatives  of the
            several Underwriters.]




                                       39
<PAGE>

     By ........................................



     By.......................................................
        [Insert title]


                                       40
<PAGE>

<TABLE>
<CAPTION>
                                   SCHEDULE A

                                                                                  Number of    [Number of
     Underwriter                                                                    [Firm]      Optional
     -----------                                                                    Shares       Shares]
                                                                                    ------       ------
<S>                                                                               <C>          <C>





















                                                                                               ------------
  Total.....................................................................
                                                                                               ============
</TABLE>


                                       41
<PAGE>

<TABLE>
<CAPTION>
                                  [SCHEDULE B]

                                                                               Number of      [Number of
     Selling Stockholder                                                         [Firm]        Optional
     -------------------                                                       Shares to    Shares to be
                                                                                be Sold         Sold]
                                                                               ---------    ------------
<S>                                                                            <C>          <C>






















                                                                                            ---------------
  Total.....................................................................
                                                                                            ===============
</TABLE>


                                       42
<PAGE>

                                                                        ANNEX IV


  (Three copies of this Delayed Delivery Contract should be signed and returned
      to the address shown below so as to arrive not later than 9:00 A.M.,
       New York time, on ........................ ............, 20__.(3))



                            DELAYED DELIVERY CONTRACT

                                        [Insert date of initial public offering]



AMERICAN TOWER CORPORATION
   c/o ........................................


Gentlemen:

     The undersigned  hereby agrees to purchase from American Tower Corporation,
a  Delaware  corporation  ("Company"),  and the  Company  agrees  to sell to the
undersigned,  [If one  delayed  closing,  insert--as  of the  date  hereof,  for
delivery on , 20__ ("Delivery Date"),]

                            [$]..............[shares]

--principal    amount--of   the   Company's   [Insert   title   of   securities]
("Securities"),  offered  by  the  Company's  Prospectus  dated  ,  20__  and  a
Prospectus Supplement dated , 20__ relating thereto,  receipt of copies of which
is hereby  acknowledged,  at-- % of the  principal  amount  thereof plus accrued
interest,  if any,--$ per share plus  accrued  dividends,  if  any,--and  on the
further  terms  and  conditions  set  forth in this  Delayed  Delivery  Contract
("Contract").

     [If two or more delayed closings, insert the following:

     The undersigned  will purchase from the Company as of the date hereof,  for
delivery on the dates set forth below, Securities in the--principal--amounts set
forth below:


--------
         (3) Insert date which is third full  business day prior to Closing Date
under the Terms Agreement.


                                       43
<PAGE>

                                                     Principal Amount
                                                     ----------------

                                                           Number
        Delivery Date                                      of [Warrants] Shares
        -------------                                      --------------------

 ................................                           .............

 ................................                           .............

Each of such delivery dates is hereinafter referred to as a Delivery Date.]

     Payment for the Securities  that the undersigned has agreed to purchase for
delivery  on--the--each--Delivery Date shall be made to the Company or its order
in Federal  (same day) funds by wire  transfer to an account  designated  by the
Company at a bank acceptable to the Lead Underwriter, at the office of at
      A.M.  on--the--such--Delivery Date upon delivery to the undersigned of the
Securities  to be purchased by the  undersigned--for  delivery on such  Delivery
Date--in definitive [If debt issue,  insert--fully  registered] form and in such
denominations  and registered in such names as the  undersigned may designate by
written or telegraphic communication addressed to the Company not less than five
full business days prior to--the--such--Delivery Date.

     It is expressly agreed that the provisions for delayed delivery and payment
are for the sole convenience of the undersigned;  that the purchase hereunder of
Securities  is to be  regarded  in all  respects as a purchase as of the date of
this Contract; that the obligation of the Company to make delivery of and accept
payment for, and the obligation of the  undersigned to take delivery of and make
payment for,  Securities  on--the--each--Delivery  Date shall be subject only to
the   conditions   that   (1)   investment   in   the   Securities   shall   not
at--the--such--Delivery Date be prohibited under the laws of any jurisdiction in
the United  States to which the  undersigned  is subject and which  governs such
investment  and  (2)  the  Company  shall  have  sold  to the  Underwriters  the
total--principal amount--number of shares--of the Securities less the--principal
amount---number of shares--thereof  covered by this and other similar Contracts.
The  undersigned  represents that its investment in the Securities is not, as of
the date  hereof,  prohibited  under the laws of any  jurisdiction  to which the
undersigned is subject and which governs such investment.

     Promptly after  completion of the sale to the Underwriters the Company will
mail or deliver to the undersigned at its address set forth below notice to such
effect,  accompanied  by--a  copy--copies--of  the opinion[s] of counsel for the
Company delivered to the Underwriters in connection therewith.

     This  Contract will inure to the benefit of and be binding upon the parties
hereto and their  respective  successors,  but will not be  assignable by either
party hereto without the written consent of the other.



                                       44
<PAGE>

     It is  understood  that  the  acceptance  of any  such  Contract  is in the
Company's sole discretion and, without limiting the foregoing,  need not be on a
first-come,  first-served  basis. If this Contract is acceptable to the Company,
it is requested  that the Company sign the form of acceptance  below and mail or
deliver one of the  counterparts  hereof to the  undersigned  at its address set
forth  below.  This will become a binding  contract  between the Company and the
undersigned when such counterpart is so mailed or delivered.

                            Yours very truly,



                                  ...........................................
                                              (Name of Purchaser)


                                  By ........................................


                                  ...........................................
                                              (Title of Signatory)


                                  ...........................................


                                  ...........................................
                                              (Address of Purchaser)



Accepted, as of the above date.


AMERICAN TOWER CORPORATION


       By ....................................
           [Insert Title]

                                       45
<PAGE>

                                     ANNEX V

American Towers, Inc.
ATC Holding, Inc.
ATC Operating, Inc.
ATC GP Inc.
ATC LP, Inc.
American Tower, L.P.
Towersites Monitoring, Inc.
ATC Teleports, Inc.
ATC Realty, Inc.
ATI Merger Corporation ATC Financing LLC ATC Broadcast GP, Inc.
American Tower Delaware Corporation

                                       46


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