STERICYCLE INC
S-3/A, 1999-02-04
HAZARDOUS WASTE MANAGEMENT
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<PAGE>   1
 
   
    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON FEBRUARY 4, 1999
    
 
                                                        REGISTRATION NO.
                                                        333-60591
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                       SECURITIES AND EXCHANGE COMMISSION
                                WASHINGTON, D.C.
                            ------------------------
 
   
                                AMENDMENT NO. 4
    
                                       TO
 
                                    FORM S-3
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
 
                                STERICYCLE, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                                                      <C>
               DELAWARE                                                36-3640402
     (STATE OR OTHER JURISDICTION                                   (I.R.S. EMPLOYER
    INCORPORATION OR ORGANIZATION)                               IDENTIFICATION NUMBER)
</TABLE>
 
                            28161 NORTH KEITH DRIVE
                          LAKE FOREST, ILLINOIS 60045
                                 (847) 367-5910
         (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING
            AREA CODE, OF REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
 
                                 MARK C. MILLER
                     PRESIDENT AND CHIEF EXECUTIVE OFFICER
                                STERICYCLE, INC.
                            28161 NORTH KEITH DRIVE
                          LAKE FOREST, ILLINOIS 60045
                                 (847) 367-5910
           (NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER,
                   INCLUDING AREA CODE, OF AGENT FOR SERVICE)
                            ------------------------
 
                                   COPIES TO:
 
<TABLE>
<S>                                                  <C>
      CRAIG P. COLMAR, ESQ.                              GEOFFREY E. LIEBMANN, ESQ.
        MICHAEL BONN, ESQ.                                CAHILL GORDON & REINDEL
        JOHNSON AND COLMAR                                     80 PINE STREET
      300 SOUTH WACKER DRIVE                              NEW YORK, NEW YORK 10005
     CHICAGO, ILLINOIS 60606
</TABLE>
 
                            ------------------------
 
    APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As soon as
practicable after the effective date of this Registration Statement
 
    If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box: [ ]
 
    If any of the securities being offered on this Form are to be offered on a
delayed or continuous basis pursuant to Rule 415 under the Securities Act, other
than securities offered only in connection dividend or interest reinvestment
plans, check the following box: [ ]
 
    If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [ ]
 
    If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [ ]
 
    If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. [ ]
                            ------------------------
 
     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SECTION 8(A), MAY
DETERMINE.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   2
 
                                    PART II
 
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION
 
   
     The following table sets forth the various expenses in connection with the
sale and distribution of the securities being registered (other than
underwriting discounts and commissions). All amounts shown are estimates except
the Securities and Exchange Commission registration fee, Nasdaq National Market
listing fees and NASD registration fee. All of these expenses will be paid by
the Registrant.
    
 
   
<TABLE>
<S>                                                             <C>
SEC registration fee........................................    $ 20,717.00
Nasdaq National Market listing fees.........................      17,500.00
NASD registration fee.......................................       7,340.00
Legal fees and expenses.....................................     275,000.00
Accounting fees and expenses................................     175,000.00
Printing expenses...........................................     200,000.00
Blue sky fees and expenses..................................      20,000.00
Transfer agent fees.........................................      10,000.00
Miscellaneous...............................................     124,443.00
                                                                -----------
       Total................................................    $850,000.00
                                                                ===========
</TABLE>
    
 
ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
     Section 145 of the Delaware General Corporation Law provides generally that
a person sued as a director, officer, employee or agent of a corporation may be
indemnified by the corporation in non-derivative suits for expenses (including
attorneys' fees), judgments, fines and amounts paid in settlement if such person
acted in good faith and in a manner that he or she reasonably believed to be in
or not opposed to the best interests of the corporation. In the case of criminal
actions and proceedings, the person must also not have had reasonable cause to
believe that his or her conduct was unlawful. Indemnification of expenses is
also authorized in stockholder derivative actions if the person acted in good
faith and in a manner that he or she reasonably believed to be in or not opposed
to the best interests of the corporation and if he or she has not been found
liable to the corporation. Even in this latter instance, the court may determine
that in view of all the circumstances such person is entitled to indemnification
for such expenses as the court deems proper. A person sued as a director,
officer, employee or agent of a corporation who has been successful in defense
of the action must be indemnified by the corporation against expenses.
 
     Article Fifth of the Registrant's By-Laws requires the Company to indemnify
its directors, officers, employees and agents to the maximum extent permitted by
Delaware law. Article Fifth also requires the Registrant to advance litigation
expenses of a director or officer on receipt of his or her written undertaking
to repay all amounts advanced if it s ultimately determined that he or she is
not entitled to indemnification.
 
     Section 102(b)(7) of the Delaware General Corporation Law permits a
corporation to include a provision in its certificate of incorporation
eliminating or limiting the personal liability of a director to the corporation
or its stockholders for monetary damages for a breach of the director's
fiduciary duty of care. Such a provision may not eliminate or limit the
liability of a director for breaching his or her duty of loyalty, failing to act
in good faith, engaging in intentional misconduct or knowingly violating a law,
declaring an illegal dividend or approving an illegal stock repurchase, or
obtaining an improper personal benefit.
 
     Article Ninth of the Registrant's Certificate of Incorporation eliminates
the personal liability of the Registrant's directors to the fullest extent
permitted by Section 102(b)(7).
 
     By reason of directors' and officers' liability insurance which the
Registrant maintains, the Registrant's directors officers are insured against
actual liabilities, including liabilities under the federal securities laws, for
acts or omissions related to the conduct of their duties.
 
     See the Underwriting Agreement, Exhibit 1.1, for certain indemnification
provisions relating to this Offering.
 
                                      II-1
<PAGE>   3
 
ITEM 16. EXHIBITS
 
   
<TABLE>
<CAPTION>
EXHIBIT
  NO.                             DESCRIPTION
- -------                           -----------
<C>       <S>
 1.1      Form of Underwriting Agreement.
 3.1*     Certificate of Incorporation of the Registrant as currently
          in effect. (Incorporated by reference to Exhibit 3.1 to the
          Registrant's Registration Statement on Form S-1
          (Registration No. 333-05665), declared effective on August
          22, 1996.)
 4.1*     Form of common stock purchase warrants in connection with
          December 1998 subordinated loan.
 5.1      Opinion of Johnson and Colmar.
10.1*     Credit Agreement dated as of September 30, 1998 among
          LaSalle National Bank, as agent, LaSalle National Bank, as
          lender, the Registrant and certain of the Registrant's
          subsidiaries, and related Master First Amendment Agreement
          dated as of October 30, 1998.
10.2*     Joint Venture Agreement dated May 16, 1997 among the
          Registrant, Pennoni Associates, Inc., Conopam, S.A. de C.V.
          and Controladora Ambiental, S.A. de C.V., relating to the
          organization of Medam, S.A. de C.V.
10.3*     Industrial Building Lease dated July 28, 1998 between Curto
          Reynolds Oelerich, Inc. and the Registrant, relating to the
          Registrant's lease of office and warehouse space in Lake
          Forest, Illinois.
10.4*+    Agreement for Sublease dated April 1, 1997 between Waste
          Management of Texas, Inc. and the Registrant, relating to
          the Registrant's sublease of a treatment facility in
          Terrell, Texas.
10.5*+    Agreement for Sublease dated May 1, 1997 between Waste
          Management of Maryland, Inc. and the Registrant, relating to
          the Registrant's sublease of a treatment facility in
          Baltimore, Maryland.
10.6*+    Agreement for Sublease dated July 30, 1997 between WMI
          Medical Services of Arizona, Inc. and the Registrant,
          relating to the Registrant's sublease of a treatment
          facility in Chandler, Arizona.
10.7*     First Amendment to Amended and Restated Incentive
          Compensation Plan.
10.8*     First and Second Amendments to Directors Stock Option Plan.
10.9*     First Amendment to 1997 Stock Option Plan.
10.10*    Subordinated Loan Agreement dated December 22, 1998 between
          the Registrant and certain lenders (all of whom are
          directors of the Registrant)
23.1      Consent of Ernst & Young LLP.
23.2      Consent of Heard McElroy & Vestal, LLP.
23.3      Consent of Collins Barrow
23.4      Consent of Johnson and Colmar (filed as part of Exhibit
          5.1).
24.1      Power of attorney (included under the caption "Power of
          Attorney" in Part II of this Registration Statement).
</TABLE>
    
 
- -------------------------
 * Previously filed
 
   
 + Confidential treatment requested; material omitted and filed separately with
   the Commission
    
 
ITEM 17. UNDERTAKINGS
 
     The Registrant hereby undertakes that:
 
          (1) For purposes of determining any liability under the Securities Act
     of 1933, each filing of the Registrant's annual report pursuant to Section
     13(a) or Section 15(d) of the Securities Exchange Act of 1934 (and, where
     applicable, each filing of an employee benefit plan's annual report
     pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is
     incorporated by reference in this Registration Statement shall be deemed to
     be a new registration statement relating to the securities
 
                                      II-2
<PAGE>   4
 
     offered therein, and the offering of such securities at that time shall be
     deemed to be the initial bona fide offering thereof.
 
          (2) For purposes of determining any liability under the Securities Act
     of 1933, the information omitted from the form of prospectus filed as part
     of this Registration Statement in reliance upon Rule 430A and contained in
     a form of prospectus filed by the Registrant pursuant to Rule 424(b) (1) or
     (4) or 497(h) under the Securities Act shall be deemed to be part of this
     Registration Statement as of the time that it was declared effective.
 
          (3) For the purpose of determining any liability under the Securities
     Act of 1933, each post-effective amendment that contains a form of
     prospectus shall be deemed to be a new registration statement relating to
     the securities offered therein, and the offering of such securities at that
     time shall be deemed to be the initial bona fide offering thereof.
 
     Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the provisions described in Item 15, or otherwise, the
Registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the Act
and is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the Registrant of expenses
incurred or paid by a director, officer or controlling person of the Registrant
in the successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Act and will be governed by the final adjudication of
such issue.
 
                                      II-3
<PAGE>   5
 
                                   SIGNATURES
 
   
     Pursuant to the requirements of the Securities Act of 1933, as amended, the
Registrant has duly caused this Amendment No. 4 to Registration Statement to be
signed on its behalf by the undersigned, thereunto duly authorized, in the
Village of Lake Forest, State of Illinois, on February 4, 1999.
    
 
                                          Stericycle, Inc.
 
                                          By       /s/ MARK C. MILLER
 
                                            ------------------------------------
                                                       Mark C. Miller
                                               President and Chief Executive
                                                           Officer
 
   
     Pursuant to the requirements of the Securities Act of 1933, as amended,
this Amendment No. 4 to Registration Statement has been signed below by the
following persons in the capacities and on the dates indicated.
    
 
   
<TABLE>
<CAPTION>
                      NAME                                      TITLE                       DATE
                      ----                                      -----                       ----
<C>                                               <S>                                 <C>
                       *                          Chairman of the Board of Directors  February 4, 1999
- ------------------------------------------------
                Jack W. Schuler
 
               /s/ MARK C. MILLER                 President, Chief Executive Officer  February 4, 1999
- ------------------------------------------------  and a Director (Principal
                 Mark C. Miller                   Executive Officer)
 
                       *                          Vice President, Finance and Chief   February 4, 1999
- ------------------------------------------------  Financial Officer (Principal
              Frank J.M. ten Brink                Financial and Accounting Officer)
 
                       *                          Director                            February 4, 1999
- ------------------------------------------------
                Rod F. Dammeyer
 
                       *                          Director                            February 4, 1999
- ------------------------------------------------
               Patrick F. Graham
 
                       *                          Director                            February 4, 1999
- ------------------------------------------------
                 John Patience
 
                       *                          Director                            February 4, 1999
- ------------------------------------------------
                  Peter Vardy
 
                       *                          Director                            February 4, 1999
- ------------------------------------------------
            L. John Wilkerson, Ph.D.
</TABLE>
    
 
By      /s/ MARK C. MILLER
 
    -----------------------------
           Mark C. Miller
          Attorney-in-Fact
 
                                      II-4
<PAGE>   6
 
                                 EXHIBIT INDEX
 
   
<TABLE>
<CAPTION>
EXHIBIT
  NO.                                DESCRIPTION
- -------                              -----------
<C>          <S>
 1.1         Form of Underwriting Agreement.
 3.1*        Certificate of Incorporation of the Registrant as currently
             in effect. (Incorporated by reference to Exhibit 3.1 to the
             Registrant's Registration Statement on Form S-1
             (Registration No. 333-05665), declared effective on August
             22, 1996.)
 4.1*        Form of common stock purchase warrants in connection with
             December 1998 subordinated loan.
 5.1         Opinion of Johnson and Colmar.
10.1*        Credit Agreement dated as of September 30, 1998 among
             LaSalle National Bank, as agent, LaSalle National Bank, as
             lender, the Registrant and certain of the Registrant's
             subsidiaries, and related Master First Amendment Agreement
             dated as of October 30, 1998.
10.2*        Joint Venture Agreement dated May 16, 1997 among the
             Registrant, Pennoni Associates, Inc., Conopam, S.A. de C.V.
             and Controladora Ambiental, S.A. de C.V., relating to the
             organization of Medam, S.A. de C.V.
10.3*        Industrial Building Lease dated July 28, 1998 between Curto
             Reynolds Oelerich, Inc. and the Registrant, relating to the
             Registrant's lease of office and warehouse space in Lake
             Forest, Illinois.
10.4*+       Agreement for Sublease dated April 1, 1997 between Waste
             Management of Texas, Inc. and the Registrant, relating to
             the Registrant's sublease of a treatment facility in
             Terrell, Texas.
10.5*+       Agreement for Sublease dated May 1, 1997 between Waste
             Management of Maryland, Inc. and the Registrant, relating to
             the Registrant's sublease of a treatment facility in
             Baltimore, Maryland.
10.6*+       Agreement for Sublease dated July 30, 1997 between WMI
             Medical Services of Arizona, Inc. and the Registrant,
             relating to the Registrant's sublease of a treatment
             facility in Chandler, Arizona.
10.7*        First Amendment to Amended and Restated Incentive
             Compensation Plan.
10.8*        First and Second Amendments to Directors Stock Option Plan.
10.9*        First Amendment to 1997 Stock Option Plan.
10.10*       Subordinated Loan Agreement dated December 22, 1998 between
             the Registrant and certain lenders (all of whom are
             directors of the Registrant)
23.1         Consent of Ernst & Young LLP.
23.2         Consent of Heard McElroy & Vestal, LLP.
23.3         Consent of Collins Barrow
23.4         Consent of Johnson and Colmar (filed as part of Exhibit
             5.1).
24.1         Power of attorney (included under the caption "Power of
             Attorney" in Part II of this Registration Statement).
</TABLE>
    
 
- -------------------------
 * Previously filed
   
 + Confidential treatment requested; material omitted and filed separately with
   the Commission
    
 
                                      II-5

<PAGE>   1
                             UNDERWRITING AGREEMENT
                                        
                               February [ ], 1999
                                        
                                        
WARBURG DILLON READ LLC
BT ALEX. BROWN INCORPORATED
CREDIT SUISSE FIRST BOSTON CORPORATION
WILLIAM BLAIR & COMPANY L.L.C.
as Managing Underwriters
c/o Warburg Dillon Read LLC
299 Park Avenue
New York, New York 10171-0026

Ladies and Gentlemen:

     Stericycle, Inc., a Delaware corporation (the "Company"), proposes to issue
and sell to the underwriters named in Schedule A annexed hereto (the
"Underwriters" from or here acting as representatives, the "Representatives") an
aggregate of 3,500,000 shares (the "Firm Shares") of Common Stock, $.01 par
value, of the Company (the "Common Stock"). In addition, solely for the purpose
of covering over-allotments, the Company proposes to grant to the Underwriters
the option, exercisable by the Representatives, to purchase from the Company up
to an additional 525,000 shares of Common Stock (the "Additional Shares"). The
Firm Shares and the Additional Shares are hereinafter collectively sometimes
referred to as the "Shares." The Shares are described in the Prospectus which is
referred to below.

     The Company has filed, in accordance with the provisions of the Securities
Act of 1933, as amended, and the rules and regulations thereunder (collectively
called the "Act"), with the Securities and Exchange Commission (the
"Commission") a registration statement on Form S-3 (File No.333-60591),
including a prospectus, relating to the Shares, which incorporates by reference
documents which the Company has filed in accordance with the provisions of the
Securities Exchange Act of 1934, as amended (the "1934 Act"), and the rules and
regulations thereunder (the "1934 Act Regulation"). The Company has furnished
to you, for use by the Underwriters and by dealers, copies of one or more
preliminary prospectuses and the documents incorporated by reference therein
(each thereof, including the documents incorporated therein by reference, being
herein called a "Preliminary Prospectus") relating to the Shares. Except where
the context otherwise requires, the registration statement, as amended when it
becomes effective (together with any registration statement filed pursuant to
Rule 462(b) under the Act increasing the size of the offering registered under
the Act), including all documents filed as a part thereof or incorporated by
reference therein, and including any information contained in a prospectus
subsequently filed with the Commission pursuant to Rule 424(b) under the Act and
deemed to be part of the registration statement at the time of effectiveness
pursuant to Rule 430(A) under the Act, is herein called the "Registration
Statement", and the prospectus, including all documents incorporated therein by
reference, in the form filed by the Company with the Commission pursuant to Rule
424(b) under the Act or, if no such filing is required, the form of final
prospectus included in the Registration Statement at the time it became
effective, is herein called the "Prospectus".

     The Company and the Underwriters agree as follows:

     1.  Sale and Purchase.  Upon the basis of the warranties and
representations and the other terms and conditions herein set forth, the Company
agrees to sell to the respective Underwriters and each of the Underwriters,
severally and not jointly, agrees to purchase from the Company the aggregate
number of Firm Shares set forth opposite the name of such Underwriter in
Schedule A attached hereto in each case at a purchase price of $[  ] per Share.
You shall release the Firm Shares for public sale promptly after this Agreement
becomes effective. You may from time to time increase or decrease the public
offering price after the initial public offering to such extent as you may
determine.




                                       1


<PAGE>   2


     In addition, the Company hereby grants to the several Underwriters the
option to purchase, and upon the basis of the warranties and representations and
the other terms and conditions herein set forth, the Underwriters shall have the
right to purchase, severally and not jointly, from the Company, ratably in
accordance with the number of Firm Shares to be purchased by each of them, all
or a portion of the Additional Shares as may be necessary to cover
over-allotments made in connection with the offering of the Firm Shares, at the
same purchase price per share to be paid by the Underwriters to the Company for
the Firm Shares. This option may be exercised at any time (but not more than
once) on or before the thirtieth day following the date hereof, by written
notice from Warburg Dillon Read LLC to the Company. Such notice shall set forth
the aggregate number of Additional Shares as to which the option is being
exercised, and the date and time when the Additional Shares are to be delivered
(such date and time being herein referred to as the "additional time of
purchase"); provided, however, that the additional time of purchase shall not be
earlier than the time of purchase (as defined below) nor earlier than the second
business day after the date on which the option shall have been exercised nor
later than the eighth business day after the date on which the option shall have
been exercised.

     The number of Additional Shares to be sold to each Underwriter shall be the
number which bears the same proportion to the aggregate number of Additional
Shares being purchased as the number of Firm Shares set forth opposite the name
of such Underwriter on Schedule A hereto bears to the total number of Firm
Shares (subject, in each case, to such adjustment as you may determine to
eliminate fractional shares).

     2.  Payment and Delivery.  Payment of the purchase price for the Firm
Shares shall be made to the Company by wire transfer of immediately available
funds, against delivery of the certificates for the Firm Shares to you for the
respective accounts of the Underwriters. Such payment and delivery shall be made
at 10:00 A.M., New York City time, on February [  ], 1999 (unless another time
shall be agreed to by you and the Company or unless postponed in accordance with
the provisions of Section 10 hereof). The time at which such payment and
delivery are actually made is hereinafter sometimes called the "time of
purchase". Certificates for the Firm Shares shall be delivered to you in
definitive form in such names and in such denominations as you shall specify on
the second business day preceding the time of purchase. For the purpose of
expediting the checking of the certificates for the Firm Shares by you, the
Company agrees to make such certificates available to you for such purpose at
least one full business day preceding the time of purchase.

     Payment of the purchase price for the Additional Shares shall be made at
the additional time of purchase in the same manner as the payment for the Firm
Shares. Certificates for the Additional Shares shall be delivered to you in
definitive form in such names and in such denominations as you shall specify on
the second business day preceding the additional time of purchase. For the
purpose of expediting the checking of the certificates for the Additional Shares
by you, the Company agrees to make such certificates available to you for such
purpose at least one full business day preceding the additional time of
purchase.

     3.  Representations and Warranties of the Company. The Company represents
and warrants to each of the Underwriters that:

         (a) each Preliminary Prospectus filed as a part of the Registration
     Statement as originally filed or as part of any amendment thereto, or filed
     pursuant to Rule 424 under the Act fully complied when so filed in all
     material respects with the Act, and when the Registration Statement becomes
     or became effective and at all times subsequent thereto up to the time of
     purchase, the Registration Statement and the Prospectus and any amendments
     or supplements thereto, fully complied and will fully comply in all
     material respects with the provisions of the Act, and the Registration
     Statement at all such times did not and will not contain an untrue
     statement of a material fact or omit to state a material fact required to
     be stated therein or necessary to make the statements therein not
     misleading, and the Prospectus at all such times did not and will not
     contain an untrue statement of a material fact or omit to state a

- -------------------------
1    As used herein "business day" shall mean a day on which the New York Stock
     Exchange is open for trading






                                       2
<PAGE>   3


     material fact required to be stated therein or necessary to make the
     statements therein, in light of the circumstances under which they were
     made, not misleading; provided, however, that the Company makes no warranty
     or representation with respect to any statement contained in the
     Registration Statement or the Prospectus in reliance upon and in conformity
     with information concerning the Underwriters and furnished in writing by or
     on behalf of any Underwriter through you to the Company expressly for use
     in the Registration Statement or the Prospectus;

         (b) the documents incorporated by reference in the Prospectus, when
     they were filed with the Commission, complied in all material respects to
     the requirements of the 1934 Act and the 1934 Act Regulations, and none of
     such documents contained an untrue statement of a material fact or omitted
     to state a material fact required to be stated therein or necessary to make
     the statements therein not misleading; and any further documents so filed
     and incorporated by reference in the Prospectus or any further amendment or
     supplement thereto, when such documents are filed with the Commission, as
     the case may be, will conform in all material respects to the requirements
     of the 1934 Act and the 1934 Act Regulations and will not contain an untrue
     statement of a material fact or omit to state a material fact required to
     be stated therein or necessary to make the statements therein not
     misleading

         (c) as of the date of this Agreement, the Company has an authorized
     capitalization as set forth under the heading entitled "Actual" in the
     section of the Registration Statement and the Prospectus entitled
     "Capitalization" and, as of the time of purchase and the additional time of
     purchase, as the case may be, the Company shall have an authorized
     capitalization as set forth under the heading entitled "As Adjusted" in the
     section of the Registration Statement and the Prospectus entitled
     "Capitalization"; all of the issued and outstanding shares of capital stock
     including Common Stock of the Company have been duly and validly authorized
     and issued and are fully paid and non-assessable, have been issued in
     compliance with all federal and state securities laws and were not issued
     in violation of any preemptive right, resale right, right of first refusal
     or similar right; the Company has been duly incorporated and is validly
     existing as a corporation in good standing under the laws of the State of
     Delaware, with full power and authority to own its properties and conduct
     its business as described in the Registration Statement and the Prospectus,
     to execute and deliver this Agreement and to issue and sell the Shares as
     herein contemplated; each of the Subsidiaries has been duly organized and
     is validly existing as a corporation in good standing under the laws of its
     jurisdiction of its incorporation with full corporate power and authority
     to own its property and conduct the business in which it is presently
     engaged;

         (d) all of the issued and outstanding shares of the capital stock of
     each of the Company's subsidiaries, all of which subsidiaries are listed on
     Exhibit I hereto, have been duly and validly authorized and issued and are
     fully paid and non-assessable and are owned by the Company free and clear
     of any pledge, lien, encumbrance, security interest, preemptive rights or
     other claim; except as described in the Registration Statement and the
     Prospectus there are no outstanding rights subscriptions, warrants, calls,
     options or other agreements of any kind with respect to the capital stock
     of the Company or of the Subsidiaries; the Company does not own, directly
     or indirectly, shares of capital stock of or other equity interest in any
     corporation or other entity other than the Subsidiaries;

         (e) the Company and each of its Subsidiaries are duly qualified to do
     business and in good standing in each jurisdiction in which they conduct
     their respective businesses; and the Company and each of its Subsidiaries
     are in compliance in all material respects with the laws, orders, rules,
     regulations and directives issued or administered by such jurisdictions;

         (f) neither the Company nor any of its Subsidiaries is in breach of, or
     in default under (nor has any event occurred which with notice, lapse of
     time, or both would constitute a breach of, or default under), its
     respective charter or by-laws or in the performance or observance of any
     obligation, agree-





                                       3


<PAGE>   4



     ment, covenant or condition contained in any material indenture, mortgage,
     deed of trust, bank loan or credit agreement or other agreement or
     instrument to which the Company or any of its Subsidiaries is a party or by
     which any of them or their respective properties are bound; and the
     execution, delivery and performance of this Agreement, the incurrence of
     the obligations set forth herein and the consummation of the transactions
     contemplated hereby will not conflict with, or result in any breach of or
     constitute a default under (nor constitute any event which with notice,
     lapse of time, or both would constitute a breach of, or default under), any
     provisions of the charter or by-laws, of the Company or any of its
     Subsidiaries or under any provision of any license, indenture, mortgage,
     deed of trust, bank loan or credit agreement or other agreement or
     instrument to which the Company or any of its Subsidiaries is a party or by
     which any of them or their respective properties may be bound or affected,
     or under any federal, state, local or foreign law, regulation or rule or
     any decree, judgment or order applicable to the Company or any of its
     Subsidiaries;

         (g) neither the Company nor any of its Subsidiaries is a party to any
     litigation, and there is no such litigation pending or to the best
     knowledge of the Company or any of its Subsidiaries, threatened or
     contemplated, which seeks to enjoin or restrain the execution, delivery and
     performance of this Agreement, the incurrence of the obligations set forth
     herein or the consummation of the transactions contemplated hereby;

         (h) this Agreement has been duly authorized, executed and delivered by
     the Company and is a legal, valid and binding agreement of the Company
     enforceable in accordance with its terms (except as enforcement may be
     limited by applicable bankruptcy, insolvency or similar laws affecting the
     enforcement of creditors' rights generally or by legal or equitable
     limitations on the availability of specific remedies); the Board of
     Directors of the Company or a committee thereof duly authorized by the
     Board of Directors of the Company has duly adopted resolutions authorizing
     the issuance and sale of the Shares by the Company; the Shares to be sold
     by the Company, when issued and delivered to the Underwriters as
     contemplated hereby, will be duly and validly authorized and fully paid and
     non-assessable, and free and clear of any pledge, lien, charge,
     encumbrance, security interest, preemptive right or other claim;

         (i) the capital stock of the Company, including the Shares, conforms in
     all material respects to the description thereof contained in the
     Registration Statement and Prospectus and the certificates for the Shares
     are in due and proper form and the holders of the Shares will not be
     subject to personal liability for the debts or other liabilities or
     obligations of the Company by reason of being such holders;

         (j) no approval, authorization, consent or order of or filing with any
     national, state or local governmental or regulatory commission, board,
     body, authority or agency is required in connection with the issuance and
     sale of the Shares as contemplated hereby other than registration of the
     Shares under the Act, clearance of the offering of such Shares with the
     National Association of Securities Dealers, Inc. (the "NASD") and any
     necessary qualification under the securities or blue sky laws of the
     various jurisdictions in which the Shares are being offered by the
     Underwriters;

         (k) no person has the right, contractual or otherwise, to cause the
     Company to issue to it, or register pursuant to the Act, any shares of
     capital stock of the Company upon the issue and sale of the Shares to the
     Underwriters hereunder; no person has preemptive rights, rights of first
     refusal or other rights to purchase any of the Shares; no person has any
     right to have securities included in or registered pursuant to the
     Registration Statement;

         (l) Ernst & Young LLP, whose reports on the consolidated financial
     statements of the Company and its Subsidiaries are filed with the
     Commission as part of the Registration Statement and Prospectus, are
     independent public accountants as required by the Act;

         (m) each of the Company and its Subsidiaries has all necessary
     licenses, authorizations, consents 





                                       4


<PAGE>   5



     and approvals and has made all necessary filings required under any
     federal, state, local or foreign law, regulation or rule, and has obtained
     all necessary authorizations, consents and approvals from other persons, in
     order to conduct its respective business; neither the Company nor any of
     its Subsidiaries is in violation of, or in default under, any such license,
     authorization, consent or approval or any federal, state, local or foreign
     law, regulation or rule or any decree, order or judgment applicable to the
     Company or any of its Subsidiaries the effect of which, individually or in
     the aggregate, could have a material adverse effect on the properties,
     assets, liabilities, prospects, results of operations, business or
     condition (financial or otherwise) of the Company and its Subsidiaries
     taken as a whole (a "Material Adverse Effect");

         (n) all legal or governmental proceedings, contracts or documents of a
     character required to be described in the Registration Statement or the
     Prospectus or to be filed as an exhibit to the Registration Statement have
     been so described or filed as required;

         (o) there are no actions, suits or proceedings pending or, to the best
     knowledge of the Company, threatened against the Company or any of its
     Subsidiaries or any of their respective properties or affiliates, at law or
     in equity, or before or by any federal, state, local or foreign
     governmental or regulatory commission, board, body, authority or agency
     which, individually or in the aggregate, could result in a judgment, decree
     or order having a Material Adverse Effect;

         (p) the audited and unaudited financial statements included in the
     Registration Statement and the Prospectus present fairly the consolidated
     financial position of the Company and its Subsidiaries as of the dates
     indicated and the consolidated results of operations and changes in
     financial position of the Company and its Subsidiaries for the periods
     specified; such financial statements have been prepared in conformity with
     generally accepted accounting principles applied on a consistent basis
     during the periods involved; and the pro forma financial statements and the
     related notes thereto included in the Registration Statement and the
     Prospectus present fairly the information shown therein, have been prepared
     in accordance with the Commission's rules and guidelines with respect to
     pro forma financial statements and have been properly compiled on the bases
     described therein, and the assumptions used in the preparation thereof are
     reasonable and the adjustments used therein are appropriate to give effect
     to the transactions and circumstances referred to therein.

         (q) subsequent to the respective dates as of which information is given
     in the Registration Statement and Prospectus, and except as may be
     otherwise stated in the Registration Statement or Prospectus, there has not
     been (A) any material and unfavorable change, financial or otherwise, in
     the business, properties, assets, prospects, regulatory environment,
     results of operations or condition (financial or otherwise), present or
     prospective, of the Company and its Subsidiaries taken as a whole, (B) any
     transaction, which is material to the business, properties, assets,
     prospects, regulatory environment, results of operations or condition
     (financial or otherwise), present or prospective, of the Company and its
     Subsidiaries taken as a whole, contemplated or entered into by the Company
     or any of its Subsidiaries or (C) any obligation, contingent or otherwise,
     directly or indirectly incurred by the Company or any of its Subsidiaries
     which is material to the business, properties, assets, prospects,
     regulatory environment, results of operations or condition (financial or
     otherwise), present or prospective, of the Company and its Subsidiaries
     taken as a whole;

         (r) the Company and its Subsidiaries have good title to all properties
     and assets owned or leased by them, in each case, except as set forth in
     the Registration Statement and the Prospectus, free and clear of all
     pledges, liens, encumbrances, security interests, charges, mortgages and
     defects of title other than liens for taxes which are not yet due and
     payable;

         (s) each issuance of securities referred to in Item 15 of the
     Registration Statement (i) was effected in reliance upon a valid exemption
     from the registration requirements of the Act and (ii) was effected in
     compliance with the securities or blue sky laws of each jurisdiction in
     which such securities were offered or sold;





                                       5

<PAGE>   6



         (t) except as described in the Registration Statement and the
     Prospectus, the business, operations and facilities of the Company and each
     of its Subsidiaries have been and are being conducted in all material
     respects in compliance with all applicable federal, state, local, and
     foreign laws, ordinances, rules, regulations, licenses, permits, approvals,
     plans, authorizations, orders, judgments, directives, decrees, requirements
     and common law relating to occupational safety and health, or pollution, or
     protection of health or the environment as now or previously in effect
     (including, without limitation, those relating to, regulating, or imposing
     liability or standards of conduct concerning emissions, discharges,
     releases or threatened releases of pollutants, contaminants or hazardous,
     dangerous, or toxic substances, materials constituents or wastes or toxins,
     viruses, infectious disease agents, or pathogens, into ambient air, surface
     water, groundwater or land, or relating to the generation, manufacture,
     processing, distribution, use, treatment, storage, disposal, transport or
     handling of chemical substances, pollutants, contaminants or hazardous or
     toxic substances, materials or wastes, including medical waste, whether
     solid, gaseous or liquid in nature) or otherwise relating to remediating
     real property or concerning protection of the outdoor or indoor environment
     ("Environmental Laws"); and except as described in the Registration
     Statement and the Prospectus, neither the Company nor any of its
     Subsidiaries has received any notice which is pending from a governmental
     instrumentality or any third party alleging any violation thereof or
     liability thereunder (including, without limitation, liability for costs of
     investigating or remediating sites containing hazardous substances and/or
     damages to natural resources) and all violations for which the Company or
     any of its Subsidiaries has previously received notice have been remedied;

         (u) there is no claim pending or, to the best knowledge of the Company
     or any of its Subsidiaries, threatened or contemplated under any
     Environmental Laws against the Company or any of its Subsidiaries which, if
     adversely determined, individually or in the aggregate, would have a
     Material Adverse Effect; there are no past or present actions or
     conditions, including, without limitation, the release of any hazardous
     substance or waste regulated under any Environmental Law that are likely to
     form the basis of any such claim against the Company or any of its
     Subsidiaries which, if adversely determined, individually or in the
     aggregate would have a Material Adverse Effect;

         (v) the Company and each of its Subsidiaries have filed all federal or
     state income and franchise tax returns required to be filed and have paid
     all taxes shown thereon as due, and there is no material tax deficiency
     which has been or might be asserted against the Company or any of its
     Subsidiaries; all material tax liabilities of the Company and its
     Subsidiaries are adequately provided for on the books of the Company and
     its Subsidiaries;

         (w) neither the Company nor any of its affiliates has incurred any
     liability for any finder's fees or similar payments in connection with the
     transactions herein contemplated;

         (x) the Company and each of its Subsidiaries has in effect, with
     financially sound and reputable insurers, insurance with respect to its
     business and properties and the business and properties of its Subsidiaries
     against loss or damage of the kind customarily insured against by
     corporations of established reputation engaged in the same or similar
     businesses and similarly situated, of such type and in such amounts as are
     customarily carried under similar circumstances by such other corporations;

         (y) the Company owns each of the patents described in the Registration
     Statement and the Prospectus as owned by the Company (the "Patents") and,
     except as disclosed in the Registration Statement and the Prospectus, owns
     or possesses adequate and enforceable rights to use all other patents,
     patent applications, trademarks, trademark applications, service marks,
     copyrights, copyright applications, licenses and other similar rights
     (collectively with the Patents, "Intangibles") necessary for the conduct of
     the businesses of the Company and its Subsidiaries as now being conducted
     and as described in the Registration Statement and the Prospectus. Neither
     the Company nor any of its Subsidiaries has infringed, is infringing, or
     has received any notice of infringement of any Intangible of any other
     person and neither the Company nor any of its Subsidiaries knows of any
     basis therefor;





                                       6

<PAGE>   7



         (z) the Company has obtained the agreement of each of its directors and
     officers not to sell, contract to sell, grant any option to sell or
     otherwise dispose of, directly or indirectly, any shares of Common Stock or
     securities convertible into or exchangeable for Common Stock or warrants or
     other rights to purchase Common Stock for a period of 90 days after the
     date of this Agreement; and

         (aa) none of the Company or its Subsidiaries is, or after application
     of the proceeds as described under the caption "Use of Proceeds" in the
     Registration Statement and the Prospectus, will be an "investment company"
     or an affiliated person of, or "promoter" or "principal underwriter" for,
     an "investment company," as such terms are defined in the Investment
     Company Act of 1940, as amended, and the rules and regulations thereunder.

     4.  Certain Covenants of the Company.  The Company hereby agrees:

         (a) to furnish such information as may be required and otherwise to
     cooperate in qualifying the Shares for offering and sale under the
     securities or blue sky laws of such states as you may designate and to
     maintain such qualifications in effect so long as required for the
     distribution of the Shares, provided that the Company shall not be required
     to qualify as a foreign corporation or to consent to the service of process
     under the laws of any such state (except service of process with respect to
     the offering and sale of the Shares); and to promptly advise you of the
     receipt by the Company of any notification with respect to the suspension
     of the qualification of the Shares for sale in any jurisdiction or the
     initiation or threatening of any proceeding for such purpose; and to make
     every reasonable effort to obtain the withdrawal of any order or suspension
     as soon as practicable;

         (b) to make available to you in New York City, as soon as practicable
     after the Registration Statement becomes effective, and thereafter from
     time to time to furnish to the Underwriters, as many copies of the
     Prospectus (or of the Prospectus as amended or supplemented if the Company
     shall have made any amendments or supplements thereto after the effective
     date of the Registration Statement) as the Underwriters may request for the
     purposes contemplated by the Act; in case any Underwriter is required to
     deliver a prospectus outside of the nine-month period referred to in
     Section 10(a)(3) of the Act in connection with the sale of the Shares, the
     Company will prepare promptly upon request, but at the expense of such
     Underwriter, such amendment or amendments in the Registration Statement and
     such prospectuses as may be necessary to permit compliance with the
     requirements of Section 10(a)(3) of the Act;

         (c) to advise you promptly and (if requested by you) to confirm such
     advice in writing, (i) when the Registration Statement has become effective
     and when any post-effective amendment thereto becomes effective and (ii) if
     Rule 430A under the Act is used, when the Prospectus is filed with the
     Commission pursuant to Rule 424(b) under the Act (which the Company agrees
     to file in a timely manner under such Rules);

         (d) to advise you promptly, confirming such advice in writing, of any
     request by the Commission for amendments or supplements to the Registration
     Statement or Prospectus or for additional information with respect thereto,
     or of notice of institution of proceedings for, or the entry of a stop
     order suspending the effectiveness of the Registration Statement and, if
     the Commission should enter a stop order suspending the effectiveness of
     the Registration Statement, to make every reasonable effort to obtain the
     lifting or removal of such order as soon as possible; to advise you
     promptly of any proposal to amend or supplement the Registration Statement
     or Prospectus and to file no such amendment or supplement to which you
     shall object in writing;

         (e) if necessary or appropriate, to file a registration statement
     pursuant to Rule 462(b) under the Act;

         (f) to furnish to you and, upon request, to each of the other
     Underwriters for a period of five 





                                       7


<PAGE>   8



     years from the date of this Agreement (i) copies of any reports or other
     communications which the Company shall send to its stockholders or shall
     from time to time publish or publicly disseminate, (ii) copies of all
     annual, quarterly and current reports filed with the Commission on Forms
     10-K, 10-Q and 8-K, or such other similar form as may be designated by the
     Commission, (iii) copies of documents or reports filed with any national
     securities exchange on which any class of securities of the Company is
     listed, and (iv) such other information as you may reasonably request
     regarding the Company or its Subsidiaries;

         (g) to advise the Underwriters promptly of the happening of any event
     known to the Company within the time during which a prospectus relating to
     the Shares is required to be delivered under the Act which, in the judgment
     of the Company, would require the making of any change in the Prospectus
     then being used so that the Prospectus would not include an untrue
     statement of material fact or omit to state a material fact necessary to
     make the statements therein, in the light of the circumstances under which
     they are made, not misleading, and, during such time, to prepare and
     furnish, at the Company's expense, to the Underwriters promptly such
     amendments or supplements to such Prospectus as may be necessary to reflect
     any such change and to furnish you a copy of such proposed amendment or
     supplement before filing any such amendment or supplement with the
     Commission;

         (h) to make generally available to its security holders, and to deliver
     to you, an earnings statement of the Company (which will satisfy the
     provisions of Section 11(a) of the Act) covering a period of twelve months
     beginning after the effective date of the Registration Statement but not
     later than 15 months after such effective date, as soon as is reasonably
     practicable after the termination of such twelve-month period;

         (i) to furnish to its shareholders as soon as practicable after the end
     of each fiscal year an annual report (including a balance sheet and
     statements of income, shareholders' equity and cash flow) of the Company
     for such fiscal year, accompanied by a copy of the certificate or report
     thereon of nationally recognized independent certified public accountants;

         (j) to furnish to you five signed copies of the Registration Statement,
     as initially filed with the Commission, and of all amendments thereto
     (including all exhibits thereto) and sufficient conformed copies of the
     foregoing (other than exhibits) for distribution of a copy to each of the
     other Underwriters;

         (k) to furnish to you as early as practicable prior to the time of
     purchase and the additional time of purchase, as the case may be, but not
     later than two business days prior thereto, a copy of the latest available
     unaudited interim consolidated financial statements, if any, of the Company
     and its Subsidiaries which have been read by the Company's independent
     certified public accountants, as stated in their letter to be furnished
     pursuant to Section 6(d) of this Agreement;

         (l) to apply the net proceeds from the sale of the Shares in the manner
     set forth under the caption "Use of Proceeds" in the Registration Statement
     and the Prospectus;

         (m) whether or not the transactions contemplated by this Agreement are
     consummated or this Agreement otherwise becomes effective or is terminated,
     to pay all expenses, fees and taxes (other than any transfer taxes and fees
     and disbursements of counsel for the Underwriters except as set forth under
     Section 5 hereof and clauses (iii) and (iv) below) in connection with (i)
     the preparation and filing of the Registration Statement, each Preliminary
     Prospectus, the Prospectus, and any amendments or supplements thereto, and
     the printing and furnishing of copies of each thereof to the Underwriters
     and to dealers (including costs of mailing and shipment), (ii) the
     preparation, issuance, sale and delivery of the Shares, (iii) the word
     processing and/or printing of this Agreement, any Agreement Among
     Underwriters, any dealer agreements, any Statements of Information and
     Powers of Attorney and the reproduction and/or printing and furnishing of
     copies of each thereof to the Underwriters and to dealers (including costs
     of mailing and shipment), (iv) the qualification of the Shares 





                                       8

<PAGE>   9



     for offering and sale under state laws and the determination of their
     eligibility for investment under state law as aforesaid (including the
     legal fees and filing fees and other disbursements of counsel for the
     Underwriters) and the printing and furnishing of copies of any blue sky
     surveys or legal investment surveys to the Underwriters and to dealers, (v)
     any listing of the Shares on any securities exchange or qualification of
     the Shares for quotation on Nasdaq National Market and any registration
     thereof under the Securities Exchange Act of 1934 (the "Exchange Act"),
     (vi) any filing for review of the public offering of the Shares by the NASD
     and (vii) the performance of the Company's other obligations hereunder;

         (n) to furnish to you, before filing with the Commission subsequent to
     the effective date of the Registration Statement and during the period
     referred to in paragraph (f) above, a copy of any document proposed to be
     filed pursuant to Sections 13, 14 or 15(d) of the Exchange Act;

         (o) not to sell, contract to sell, grant any option to sell or
     otherwise dispose of, directly or indirectly, any shares of Common Stock or
     securities convertible into or exchangeable for Common Stock or warrants or
     other rights to purchase Common Stock or permit the registration under the
     Act of any shares of Common Stock, except for the registration of the
     Shares and the sales to the Underwriters pursuant to this Agreement and
     except for issuances of Common Stock upon the exercise of outstanding
     options, warrants and debentures, for a period of 90 days after the date
     hereof, without the prior written consent of Warburg Dillon Read LLC acting
     on behalf of the Representatives;

         (p) to use its best efforts to cause the Shares to be listed on the
     Nasdaq National Market; and

         (q) not to take, directly or indirectly, any action designed to cause
     or to result in, or that might constitute the stabilization or manipulation
     of the Common Stock to facilitate the sale or resale of the Shares.

     5.  Reimbursement of Underwriters' Expenses.  If the Shares are not
delivered for any reason other than the termination of this Agreement pursuant
to the first two paragraphs of Section 10 hereof or the default by one or more
of the Underwriters in its or their respective obligations hereunder, the
Company shall reimburse the Underwriters for all of their out-of-pocket
expenses, including the fees and disbursements of their counsel.

     6.  Conditions of Underwriters' Obligations.  The several obligations of
the Underwriters hereunder are subject to the accuracy of the representations
and warranties on the part of the Company on the date hereof and at the time of
purchase (and the several obligations of the Underwriters at the additional time
of purchase are subject to the accuracy of the representations and warranties on
the part of the Company on the date hereof and at the time of purchase (unless
previously waived) and at the additional time of purchase, as the case may be),
the performance by the Company of its obligations hereunder and to the following
conditions:

         (a) The Company shall furnish to you at the time of purchase and at the
     additional time of purchase, as the case may be, an opinion of Johnson and
     Colmar, counsel for the Company, addressed to the Underwriters, and dated
     the time of purchase or the additional time of purchase, as the case may
     be, with reproduced copies for each of the other Underwriters and in form
     satisfactory to Cahill Gordon & Reindel, counsel for the Underwriters,
     stating that:

             (i) the Company has been duly incorporated and is validly existing
         as a corporation in good standing under the laws of the State of
         Delaware, with full corporate power and authority to own its properties
         and conduct its business as described in the Registration Statement and
         the Prospectus, to execute and deliver this Agreement and to issue,
         sell and deliver the Shares as herein contemplated;

             (ii) each of the Subsidiaries has been duly incorporated and is
         validly existing as a corpo-





                                       9


<PAGE>   10


         ration in good standing under the laws of its respective jurisdiction
         of incorporation with full corporate power and authority to own its
         respective properties and to conduct its respective business;

             (iii) the Company and its Subsidiaries are duly qualified to do
         business in and are in good standing in each jurisdiction in which they
         conduct their respective businesses and in which the failure,
         individually or in the aggregate, to be so licensed or qualified could
         have a Material Adverse Effect and the Company and its Subsidiaries are
         duly qualified, and are in good standing, in each jurisdiction in which
         they own or lease real property or maintain an office and in which such
         qualification is necessary;

             (iv) this Agreement has been duly authorized, executed and
         delivered by the Company; the Board of Directors of the Company or a
         committee thereof duly authorized by the Board of Directors of the
         Company has duly adopted resolutions authorizing the issuance and sale
         of the Shares by the Company;

             (v) the Shares, when issued and delivered to and paid for by the
         Underwriters in accordance with the terms hereof, will be duly and
         validly authorized and issued and will be fully paid and
         non-assessable;

             (vi) the Company's authorized capital stock consists of 30,000,000
         shares of Common Stock, par value $.01 per share, as set forth in the
         Registration Statement and the Prospectus; the outstanding shares of
         capital stock of the Company have been duly and validly authorized and
         issued and are fully paid, non-assessable and free of statutory
         preemptive rights and to the best of such counsel's knowledge,
         contractual preemptive rights; the Shares when issued will be free of
         statutory preemptive rights and to the best of such counsel's
         knowledge, contractual preemptive rights (except for such contractual
         preemptive rights which have been waived pursuant to valid waivers
         which were and are in full force and effect on the date of this
         Agreement, as of the time of purchase and as of the additional time of
         purchase); the certificates for the Shares are in due and proper form
         and the holders of the Shares will not be subject to personal liability
         for the debts or other liabilities or obligations of the Company by
         reason of being such holders;

             (vii) all of the issued and outstanding shares of the capital stock
         of each of the Company's Subsidiaries have been duly and validly
         authorized and issued and are fully paid and non-assessable and are
         owned by the Company free and clear of any pledge, lien, encumbrance,
         security interest, preemptive rights or other claim known to such
         counsel; to the best of such counsel's knowledge, except as described
         in the Registration Statement and the Prospectus there are no
         outstanding rights subscriptions, warrants, calls, options or other
         agreements of any kind with respect to the capital stock of the Company
         or its Subsidiaries; to the best of such counsel's knowledge, the
         Company does not own, directly or indirectly, shares of capital stock
         of or equity interest in any corporation or other entity other than its
         Subsidiaries;

             (viii) the capital stock of the Company, including the Shares,
         conforms in all material respects to the description thereof contained
         in the Registration Statement and Prospectus;

             (ix) the Registration Statement and the Prospectus (except as to
         the financial statements and schedules and other financial and
         statistical data contained or incorporated by reference therein, as to
         which such counsel need express no opinion) comply as to form in all
         material respects with the requirements of the Act;

             (x) the Registration Statement has become effective under the Act
         and, to the best of such counsel's knowledge, no stop order proceedings
         with respect thereto are pending or threatened under the Act and any
         required filing of the Prospectus and any supplement thereto pursuant
         to Rule 424 under the Act has been made in the manner and within the
         time period required by such 




                                       10


<PAGE>   11


         Rule 424;

             (xi) no approval, authorization, consent or order of or filing with
         any national, state or local governmental or regulatory commission,
         board, body, authority or agency is required in connection with the
         issuance and sale of the Shares as contemplated hereby other than
         registration of the Shares under the Act and the clearance of the
         offering of such shares with the NASD (except such counsel need express
         no opinion as to any necessary qualification under the state securities
         or blue sky laws of the various jurisdictions in which the Shares are
         being offered by the Underwriters);

             (xii) the execution, delivery and performance of this Agreement by
         the Company and the consummation by the Company of the transactions
         contemplated hereby do not and will not conflict with, or result in any
         breach of, or constitute a default under (nor constitute any event
         which with notice, lapse of time, or both, would constitute a breach of
         or default under), any provisions of the charter or by-laws of the
         Company or any of its Subsidiaries or under any provision of any
         license, indenture, mortgage, deed of trust, bank loan, credit
         agreement or other agreement or instrument known to such counsel to
         which the Company or any of its Subsidiaries is a party or by which any
         of them or their respective properties may be bound or affected [with
         the exception of the Company's [carve out Registration Rights
         Agreement], or under any law, regulation or rule applicable to the
         Company or any of its Subsidiaries or under any decree, judgment or
         order known to such counsel applicable to the Company or any of its
         Subsidiaries;

             (xiii) to the best of such counsel's knowledge, neither the Company
         nor any of its Subsidiaries is a party to any litigation, and there is
         no such litigation pending or threatened, which seeks to enjoin or
         restrain the execution, delivery and performance of this Agreement, the
         incurrence of the obligations set forth herein or the consummation of
         the transactions contemplated hereby;

             (xiv) to the best of such counsel's knowledge, neither the Company
         nor any of its Subsidiaries is in breach of, or in default under (nor
         has any event occurred which with notice, lapse of time, or both would
         constitute a breach of, or default under), any license, indenture,
         mortgage, deed of trust, bank loan or any other agreement or instrument
         known to such counsel to which the Company or any of its Subsidiaries
         is a party or by which any of them or their respective properties may
         be bound or affected or under any law, regulation or rule or any
         decree, judgment or order known to such counsel applicable to the
         Company or any of its Subsidiaries;

             (xv) to the best of such counsel's knowledge, there are no
         contracts, licenses, agreements, leases or documents of a character
         which are required to be filed as exhibits to the Registration
         Statement or to be summarized or described in the Prospectus which have
         not been so filed, summarized or described;

             (xvi) to the best of such counsel's knowledge, there are no
         actions, suits or proceedings pending or threatened against the Company
         or any of its Subsidiaries or any of their respective properties, at
         law or in equity or before or by any commission, board, body, authority
         or agency which are required to be described in the Registration
         Statement and the Prospectus but are not so described;

             (xvii) the documents incorporated by reference in the Registration
         Statement and Prospectus, when they became effective were filed (or, if
         an amendment with respect to any such document was filed when such
         amendment was filed) with the Commission, complied as to form in all
         material respects with the Exchange Act (except as to the financial
         statements and schedules and other financial and statistical data
         contained or incorporated by reference therein as to which such counsel
         need express no opinion);





                                       11



<PAGE>   12




             (xviii) none of the Company or its Subsidiaries is, or, after
         application of the proceeds as described under the caption "Use of
         Proceeds" in the Registration Statement and the Prospectus, will be an
         "investment company" or an affiliated person of, or "promoter" or
         "principal underwriter" for, an "investment company," as such terms are
         defined in the Investment Company Act of 1940, as amended, and the
         rules and regulations thereunder; and

             (xix) such counsel have participated in conferences with officers
         and other representatives of the Company, representatives of the
         independent public accountants of the Company and representatives of
         the Underwriters at which the contents of the Registration Statement
         and Prospectus were discussed and, although such counsel is not passing
         upon and does not assume responsibility for the accuracy, completeness
         or fairness of the statements contained in the Registration Statement
         or Prospectus (except as and to the extent stated in subparagraphs (vi)
         and (viii) above) and has not made any independent verification or
         check of such statements (except for purposes of subparagraphs(vi) and
         (viii) above), on the basis of the foregoing (relying as to materiality
         to a large extent upon the opinions of officers and other
         representatives of the Company) nothing has come to the attention of
         such counsel that causes them to believe that the Registration
         Statement or any amendment thereto at the time such Registration
         Statement or amendment became effective contained an untrue statement
         of a material fact or omitted to state a material fact required to be
         stated therein or necessary to make the statements therein not
         misleading, or that the Prospectus or any supplement thereto at the
         date of such Prospectus or such supplement, and at all times up to and
         including the time of purchase or additional time of purchase, as the
         case may be, contained an untrue statement of a material fact or
         omitted to state a material fact required to be stated therein or
         necessary to make the statements therein, in light of the circumstances
         under which they were made, not misleading (it being understood that
         such counsel need express no opinion with respect to the financial
         statements and schedules and other financial and statistical data
         included in the Registration Statement or Prospectus).

         (b) The Company shall furnish to you at the time of purchase and at the
     additional time of purchase, as the case may be, an opinion of Brinks Hofer
     Gilson & Lione, patent counsel for the Company, addressed to the
     Underwriters, and dated the time of purchase or the additional time of
     purchase, as the case may be, with reproduced copies for each of the other
     Underwriters and in form satisfactory to Cahill Gordon & Reindel, counsel
     for the Underwriters, stating that:

             (i) the statements contained in the Registration Statement and the
         Prospectus, insofar as they relate to the Company's and its
         Subsidiaries' patent position, have been reviewed and approved by such
         counsel, are accurate in all material respects and fairly present the
         information set forth therein;

             (ii) to the best of such counsel's knowledge, except as disclosed
         in the Registration Statement and the Prospectus, there are no pending
         or threatened legal or governmental proceedings relating to patents,
         trademarks, service marks or proprietary information owned or used by
         the Company or its Subsidiaries to which the Company or its
         Subsidiaries is a party or of which any property of the Company or its
         Subsidiaries is the subject;

             (iii) to the best of such counsel's knowledge, neither the Company
         nor any of its Subsidiaries is currently in breach of, or in default
         under, any agreement or instrument of which such counsel has knowledge
         to which the Company or any of its Subsidiaries is a party or by which
         any of them or any of their property may be bound or affected;

             (iv) such counsel has no reason to believe that either the
         Registration Statement or the Prospectus or any amendment thereof or
         supplement thereto contains any untrue statement of a material fact or
         omits to state any material fact required to be stated therein or
         necessary to make the statements therein not misleading relating to the
         patents, patent applications, trademarks, service marks, proprietary
         information or other intellectual property of the Company or 




                                       12



<PAGE>   13




         any of its Subsidiaries;

             (v) the Company owns of record all right, title and interest in and
         to the patents and patent applications described in the Registration
         Statement and the Prospectus free and clear of any adverse claim known
         by such counsel of any third party; to the best of such counsel's
         knowledge, the Company has not infringed, is not infringing and has not
         received any notice of infringement of any patents of any other person
         which individually or in the aggregate could have a Material Adverse
         Effect;

             (vi) to the best of such counsel's knowledge, there is no
         litigation or governmental or other proceeding relating to the Patents,
         before any court or before or by any public body or board (other than
         the United States Patent and Trademark Office) pending to which the
         Company or any of its Subsidiaries is a party or threatened against the
         Company or any of its Subsidiaries which individually or in the
         aggregate could have a Material Adverse Effect; to the best of such
         counsel's knowledge, the Company has not given notice to any third
         party of any claim of infringement of its patents; and

             (vii) the applications and other documents filed by the Company or
         any of its Subsidiaries with the United States Patent and Trademark
         Office have been duly and adequately filed and to the best of such
         counsels knowledge, in connection with such applications, no fraud on
         such office was practiced or attempted and the duty of disclosure
         required by such office was not violated through bad faith or gross
         negligence, and except as specifically described in the Registration
         Statement and the Prospectus such counsel knows of no infringement or
         conflict with the existing enforceable rights of others (or of claims
         thereof) with respect to the products or processes covered by such
         applications or documents or utilized by the Company or any of its
         Subsidiaries in their respective businesses which, individually or in
         the aggregate, if the subject of an unfavorable decision, ruling or
         finding, could have a Material Adverse Effect.

         (c) The Company shall furnish to you at the time of purchase and at the
     additional time of purchase, as the case may be, an opinion of local
     counsel to the Company, in each jurisdiction, listed in Schedule B annexed
     hereto, where the Company and its Subsidiaries, taken as a whole, operate
     treatment or transfer facilities or generate 5% or more of the Company's
     consolidated revenues, addressed to the Underwriters, and dated the time of
     purchase or the additional time of purchase, as the case may be, with
     reproduced copies for each of the other Underwriters and in form
     satisfactory to Cahill Gordon & Reindel, counsel for the Underwriters,
     stating that:

             (i) the business, operations and facilities of the Company and each
         of its Subsidiaries have been and are being conducted in compliance
         with all applicable federal, state, local, and foreign laws,
         ordinances, rules, regulations, licenses, permits, approvals, plans,
         authorizations, orders, judgments, directives, decrees, requirements
         and common law relating to occupational safety and health, or
         pollution, or protection of health or the environment as now or
         previously in effect (including, without limitation, those relating to,
         regulating, or imposing liability or standards of conduct concerning
         emissions, discharges, releases or threatened releases of pollutants,
         contaminants or hazardous, dangerous, or toxic substances, materials
         constituents or wastes or toxins, viruses, infectious disease agents,
         or pathogens, into ambient air, surface water, groundwater or land, or
         relating to the generation, manufacture, processing, distribution, use,
         treatment, storage, disposal, transport or handling of chemical
         substances, pollutants, contaminants or hazardous or toxic substances,
         materials or wastes, including medical waste, whether solid, gaseous or
         liquid in nature) or otherwise relating to remediating real property or
         concerning protection of the outdoor or indoor environment; and neither
         the Company nor any of its Subsidiaries has received any notice from a
         governmental instrumentality or any third party alleging any violation
         thereof or liability thereunder (including, without limitation,
         liability for costs of investigating or remediating sites containing
         hazardous substances and/or damages to natural resources);





                                       13


<PAGE>   14




             (ii) there is no claim pending or, to the best knowledge of the
         Company or any of its Subsidiaries, threatened or contemplated under
         any Environmental Laws against the Company or any of its Subsidiaries
         which, if adversely determined, individually or in the aggregate, would
         have a Material Adverse Effect; there are no past or present actions or
         conditions including, without limitation, the release of any hazardous
         substance or waste regulated under any Environmental Law that are
         likely to form the basis of any such claim against the Company or any
         of its Subsidiaries which, if adversely determined, individually or in
         the aggregate would have a Material Adverse Effect; and

             (iii) the Statements contained in the Registration Statement and
         the Prospectus relating to Environmental Laws have been reviewed and
         approved by such counsel, are accurate in all material respects and
         fairly present the information set forth therein.

         (d) You shall have received from Ernst & Young LLP, letters dated,
     respectively, the date of this Agreement and the time of purchase and
     additional time of purchase, as the case may be, and addressed to the
     Underwriters (with reproduced copies for each of the Underwriters) in the
     forms heretofore approved by the Managing Underwriters.

         (e) You shall have received at the time of purchase and at the
     additional time of purchase, as the case may be, the favorable opinion of
     Cahill Gordon & Reindel, counsel for the Underwriters, dated the time of
     purchase or the additional time of purchase, as the case may be, in form
     and substance reasonably satisfactory to you.

         (f) No amendment or supplement to the Registration Statement or
     Prospectus shall be filed prior to the time the Registration Statement
     becomes effective to which you object in writing.

         (g) The Registration Statement shall become effective, or if Rule 430A
     under the Act is used, the Prospectus shall have been filed with the
     Commission pursuant to Rule 424(b) under the Act, at or before 5:00 P.M.,
     New York City time, on the date of this Agreement, unless a later time (but
     not later than 5:00 P.M., New York City time, on the second full business
     day after the date of this Agreement) shall be agreed to by the Company and
     you in writing or by telephone, confirmed in writing; provided, however,
     that the Company and you and any group of Underwriters, including you, who
     have agreed hereunder to purchase in the aggregate at least 50% of the Firm
     Shares may from time to time agree on a later date.

         (h) Prior to the time of purchase or the additional time of purchase,
     as the case may be, (i) no stop order with respect to the effectiveness of
     the Registration Statement shall have been issued under the Act or
     proceedings initiated under Section 8(d) or 8(e) of the Act; (ii) the
     Registration Statement and all amendments thereto, or modifications
     thereof, if any, shall not contain an untrue statement of a material fact
     or omit to state a material fact required to be stated therein or necessary
     to make the statements therein not misleading; and (iii) the Prospectus and
     all amendments or supplements thereto, or modifications thereof, if any,
     shall not contain an untrue statement of a material fact or omit to state a
     material fact required to be stated therein or necessary to make the
     statements therein, in the light of the circumstances under which they are
     made, not misleading.

         (i) Between the time of execution of this Agreement and the time of
     purchase or the additional time of purchase, as the case may be, (i) no
     material and unfavorable change, financial or otherwise (other than as
     referred to in the Registration Statement and Prospectus), in the
     properties, assets, liabilities, results of operations, business, condition
     (financial or otherwise) or prospects of the Company and its Subsidiaries
     taken as a whole shall occur or become known and (ii) no transaction which
     is material and unfavorable to the Company shall have been entered into by
     the Company or any of its Subsidiaries.

         (j) The Company will, at the time of purchase or additional time of
     purchase, as the case may 




                                       14


<PAGE>   15




     be, deliver to you a certificate of its chief executive officer and chief
     financial officer to the effect that the representations and warranties of
     the Company as set forth in this Agreement and the conditions set forth in
     paragraph (h) and paragraph (i) have been met and that they are true and
     correct as of each such date.

         (k) You shall have received signed letters from each of the directors
     and officers of the Company to the effect that such persons shall not sell,
     contract to sell, grant any option to sell or otherwise dispose of,
     directly or indirectly, any shares of Common Stock of the Company or
     securities convertible into or exchangeable for Common Stock or warrants or
     other rights to purchase Common Stock for a period of 90 days after the
     date of this Agreement without the prior written consent of Warburg Dillon
     Read LLC acting on behalf of the Managing Underwriters.

         (l) The Company shall have furnished to you such other documents and
     certificates as to the accuracy and completeness of any statement in the
     Registration Statement and the Prospectus as of the time of purchase and
     the additional time of purchase, as the case may be, as you may reasonably
     request.

         (m) The Company shall have performed such of its obligations under this
     Agreement as are to be performed by the terms hereof at or before the time
     of purchase and at or before the additional time of purchase, as the case
     may be.

         (n) The Shares shall have been approved for listing on the Nasdaq
     National Market, subject only to notice of issuance at or prior to the time
     of purchase.

     7.  Effective Date of Agreement; Termination.  This Agreement shall become
effective (i)if Rule 430A under the Act is not used, when you shall have
received notification of the effectiveness of the Registration Statement, or
(ii)if Rule 430A under the Act is used, when the parties hereto have executed
and delivered this Agreement.

     The obligations of the several Underwriters hereunder shall be subject to
termination in the absolute discretion of you or in the absolute discretion of
Warburg Dillon Read LLC, acting on your behalf, or any group of Underwriters
(which may include you) which has agreed to purchase in the aggregate at least
50% of the Firm Shares, if, at any time prior to the time of purchase or, with
respect to the purchase of any Additional Shares, the additional time of
purchase, as the case may be, trading in securities on the New York Stock
Exchange shall have been suspended or minimum prices shall have been established
on the New York Stock Exchange, or if a banking moratorium shall have been
declared either by the United States or New York State authorities, or if the
United States shall have declared war in accordance with its constitutional
processes or there shall have occurred any material outbreak or escalation of
hostilities or other national or international calamity or crisis of such
magnitude in its effect on the financial markets of the United States as, in
your judgment or in the judgment of Warburg Dillon Read LLC, acting on your
behalf, or in the judgment of such group of Underwriters, to make it
impracticable to market the Shares. If you or Warburg Dillon Read LLC, acting on
your behalf, or any group of Underwriters elects to terminate this agreement as
provided in this Section 9, the Company and each other Underwriter shall be
notified promptly by letter or telegram.

     If the sale to the Underwriters of the Shares, as contemplated by this
Agreement, is not carried out by the Underwriters for any reason permitted under
this Agreement or if such sale is not carried out because the Company shall be
unable to comply with any of the terms of this Agreement, the Company shall not
be under any obligation or liability under this Agreement (except to the extent
provided in Sections 5(m), 7 and 11 hereof), and the Underwriters (other than,
if such sale is not carried out solely because of the default by an Underwriter
or Underwriters under Section 10 hereof, such Underwriter or Underwriters (but
only with respect to such default)) shall be under no obligation or liability to
the Company under this Agreement (except to the extent provided in Section 11
hereof) or to one another hereunder.




                                       15


<PAGE>   16



     8.  Increase in Underwriters' Commitments.  Subject to Sections 8 and 9, if
any Underwriter shall default in its obligation to take up and pay for the Firm
Shares to be purchased by it hereunder and if the number of Firm Shares which
all Underwriters so defaulting shall have agreed but failed to take up and pay
for does not exceed 10% of the total number of Firm Shares, the non-defaulting
Underwriters shall take up and pay for (in addition to the aggregate principal
amount of Firm Shares they are obligated to purchase pursuant to Section 1
hereof) the number of Firm Shares agreed to be purchased by all such defaulting
Underwriters, as hereinafter provided. Such Shares shall be taken up and paid
for by such non-defaulting Underwriter or Underwriters in such amount or amounts
as you may designate with the consent of each Underwriter so designated or, in
the event no such designation is made, such Shares shall be taken up and paid
for by all non-defaulting Underwriters pro rata in proportion to the aggregate
number of Firm Shares set opposite the names of such non-defaulting Underwriters
in Schedule A.

     Without relieving any defaulting Underwriter from its obligations
hereunder, the Company agrees with the non-defaulting Underwriters that it will
not sell any Firm Shares hereunder unless all of the Firm Shares are purchased
by the Underwriters (or by substituted Underwriters selected by you with the
approval of the Company or selected by the Company with your approval).

     If a new Underwriter or Underwriters are substituted by the Underwriters or
by the Company for a defaulting Underwriter or Underwriters in accordance with
the foregoing provision, the Company or you shall have the right to postpone the
time of purchase for a period not exceeding five business days in order that any
necessary changes in the Registration Statement and Prospectus and other
documents may be effected.

     The term Underwriter as used in this agreement shall refer to and include
any Underwriter substituted under this Section 10 with like effect as if such
substituted Underwriter had originally been named in Schedule A.

     If the aggregate number of Shares which the defaulting Underwriter or
Underwriters agreed to purchase exceeds 10% of the total number of Shares which
all Underwriters agreed to purchase hereunder, and if neither the non-defaulting
Underwriters nor the Company shall make arrangements within the five business
day period stated above for the purchase of all the Shares which the defaulting
Underwriter or Underwriters agreed to purchase hereunder, this Agreement shall
be terminated without further act or deed and without any liability on the part
of the Company to any non-defaulting Underwriter and without any liability on
the part of any non-defaulting Underwriter to the Company. Nothing in this
paragraph, and no action taken hereunder, shall relieve any defaulting
Underwriter from liability in respect of any default of such Underwriter under
this Agreement.

     9.  Indemnity and Contribution.

         (a) The Company agrees to indemnify, defend and hold harmless each
     Underwriter and any person who controls any Underwriter within the meaning
     of Section 15 of the Act or Section 20 of the Exchange Act, and their
     respective agents, representatives, employees, officers, partners and
     directors (collectively, the "Underwriter indemnified parties"), from and
     against any loss, expense, damage, judgment, liability or claim (including
     the costs of investigating, defending or settling such matters and fees and
     expenses of counsel in connection therewith) as they are incurred (and
     regardless of whether the Underwriter indemnified party is a party to the
     litigation, if any) which, jointly or severally, any such Underwriter
     indemnified party may incur under the Act, the Exchange Act or otherwise
     insofar as such loss, expense, damage, judgment, liability or claim arises
     out of or is based upon any untrue statement or alleged untrue statement of
     a material fact contained in the Registration Statement (or in the
     Registration Statement as amended by any post-effective amendment thereof
     by the Company) or in a Prospectus (the term Prospectus for the purpose of
     this Section 11 being deemed to include any Preliminary Prospectus, the
     Prospectus and the Prospectus as amended or supplemented by the Company),
     or arises out of or is based upon any omission or alleged omission to state
     a material fact required to be stated in either such Registration Statement
     or Prospectus or nec-




                                       16


<PAGE>   17




     essary to make the statements made therein not misleading, except insofar
     as any such loss, expense, damage, judgment, liability or claim arises out
     of or is based upon any untrue statement or alleged untrue statement of a
     material fact contained in and in conformity with information furnished in
     writing by any Underwriter through you to the Company expressly for use
     with reference to such Underwriter in such Registration Statement or such
     Prospectus or arises out of or is based upon any omission or alleged
     omission to state a material fact in connection with such information
     required to be stated in either such Registration Statement or Prospectus
     or necessary to make such information not misleading; provided, however,
     that the indemnity agreement contained in this subsection(a) with respect
     to any Preliminary Prospectus or amended Preliminary Prospectus shall not
     inure to the benefit of any Underwriter (or to the benefit of any person
     controlling such Underwriter) from whom the person asserting any such loss,
     expense, liability or claim purchased the Shares which is the subject
     thereof to the extent the Prospectus corrected any such alleged untrue
     statement or omission and if such Underwriter failed to send or give a copy
     of the Prospectus to such person at or prior to the written confirmation of
     the sale of such Shares to such person, unless the failure is the result of
     non-compliance by the Company with paragraph (h) of Section 5 hereof.

         If any action or proceeding (including any governmental or regulatory
     investigation or proceeding) is brought or asserted against any Underwriter
     indemnified party in respect of which indemnity may be sought against the
     Company pursuant to the foregoing paragraph, such Underwriter indemnified
     party shall promptly notify the Company in writing of the institution of
     such action or proceeding and the Company shall assume the defense of such
     action or proceeding, including the employment of counsel satisfactory to
     the Underwriter indemnified party and payment of all fees and expenses;
     provided that the omission to so notify the Company shall not in any way
     relieve the Company from any liability it may have to an Underwriter
     indemnified party except and only to the extent that the Company is
     materially and adversely affected by such omission. An Underwriter
     indemnified party shall have the right to employ separate counsel in any
     such case, but the fees and expenses of such counsel shall be at the
     expense of such Underwriter indemnified party unless the employment of such
     counsel shall have been authorized in writing by the Company in connection
     with the defense of such action or the Company shall not have employed
     counsel to have charge of the defense of such action within a reasonable
     period of time or such Underwriter indemnified party or parties shall have
     reasonably concluded that there may be one or more defenses available to it
     or them which are different from or additional to those available to the
     Company (in which case the Company shall not have the right to direct the
     defense of such action on behalf of the Underwriter indemnified party or
     parties), in any of which events such fees and expenses shall be borne by
     the Company and paid as incurred (it being understood, however, that the
     Company shall not be liable for the expenses of more than one separate
     counsel (in addition to local counsel), which counsel shall be designated
     by Warburg Dillon Read LLC, in any one action or series of related actions
     in the same jurisdiction representing the Underwriter indemnified parties
     who are parties to such action). Anything in this paragraph to the contrary
     notwithstanding, the Company shall not be liable for any settlement of any
     such claim or action effected without its written consent (which consent
     shall not be unreasonably withheld or delayed) unless the Company shall be
     in breach of its obligations to pay fees and expenses pursuant to this
     Agreement, but if settled with the written consent of the Company, or if
     there is a final judgment with respect thereto, the Company agrees to
     indemnify and hold harmless each Underwriter indemnified party from and
     against any loss or liability by reason of such settlement or judgment.

         (b) Each Underwriter severally agrees to indemnify, defend and hold
     harmless the Company, its directors and officers, and any person who
     controls the Company within the meaning of Section 15 of the Act or Section
     20 of the Exchange Act from and against any loss, expense, damage,
     judgment, liability or claim (including the costs of investigating,
     defending or settling such matters and fees and expenses of counsel in
     connection therewith) as they are incurred (and regardless of whether the
     Company is a party to the litigation if any) which, jointly or severally,
     the Company or any such person may incur under the Act or otherwise,
     insofar as such loss, expense, damage, judgment, liability or claim arises
     out of or is based upon any untrue statement or alleged untrue statement of
     a materi-




                                       17


<PAGE>   18



     al fact contained in and in conformity with information furnished in
     writing by or on behalf of such Underwriter through you to the Company
     expressly for use with reference to such Underwriter in the Registration
     Statement (or in the Registration Statement as amended by any
     post-effective amendment thereof by the Company) or in a Prospectus, or
     arises out of or is based upon any omission or alleged omission to state a
     material fact in connection with such information required to be stated
     either in such Registration Statement or Prospectus or necessary to make
     such information not misleading.

         If any action is brought against the Company or any such person in
     respect of which indemnity may be sought against any Underwriter pursuant
     to the foregoing paragraph, the Company or such person shall promptly
     notify such Underwriter in writing of the institution of such action and
     such Underwriter shall assume the defense of such action (unless, with
     respect to any action or proceeding (including any governmental or
     regulatory investigation or proceeding) in respect of which indemnity may
     be sought against the Company by an Underwriter indemnified party pursuant
     to Section 11(a), the Company has assumed and continues to direct the
     defense of such action pursuant to Section 11(a)), including the employment
     of counsel and payment of expenses. The Company or such person shall have
     the right to employ its own counsel in any such case, but the fees and
     expenses of such counsel shall be at the expense of the Company or such
     person unless the employment of such counsel shall have been authorized in
     writing by such Underwriter in connection with the defense of such action
     or such Underwriter shall not have employed counsel to have charge of the
     defense of such action or such indemnified party or parties shall have
     reasonably concluded that there may be defenses available to it or them
     which are different from or additional to those available to such
     Underwriter (in which case such Underwriter shall not have the right to
     direct the defense of such action on behalf of the indemnified party or
     parties), in any of which events such fees and expenses shall be borne by
     such Underwriter and paid as incurred (it being understood, however, that
     such Underwriter shall not be liable for the expenses of more than one
     separate counsel in any one action or series of related actions in the same
     jurisdiction representing the indemnified parties who are parties to such
     action). Anything in this paragraph to the contrary notwithstanding, no
     Underwriter shall be liable for any settlement of any such claim or action
     effected without the written consent of such Underwriter.

         (c) If the indemnification provided for in this Section 11 is
     unavailable to an indemnified party under subsections(a) and (b) of this
     Section 11 in respect of any losses, expenses, damages, judgments,
     liabilities or claims referred to therein, then each applicable
     indemnifying party, in lieu of indemnifying such indemnified party, shall
     contribute to the amount paid or payable by such indemnified party as a
     result of such losses, expenses, liabilities or claims (if and only to the
     extent that indemnification of such indemnified party would be required
     under Section 9 if the indemnification provided for in this Section 9 were
     available) (i)in such proportion as is appropriate to reflect the relative
     benefits received by the Company on the one hand and the Underwriters on
     the other hand from the offering of the Shares 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
     on the one hand and of the Underwriters on the other in connection with the
     statements or omissions which resulted in such losses, expenses, damages,
     judgments, liabilities or claims, as well as any other relevant equitable
     considerations. The relative benefits received by the Company on the one
     hand and the Underwriters on the other shall be deemed to be in the same
     proportion as the total proceeds from the offering (net of underwriting
     discounts and commissions but before deducting expenses) received by the
     Company bear to the total underwriting discounts and commissions received
     by the Underwriters, in each case as set forth in the table on the cover
     page of the Prospectus. The relative fault of the Company on the one hand
     and of the Underwriters on the other shall be determined by reference to,
     among other things, whether the untrue statement or alleged untrue
     statement of a material fact or omission or alleged omission relates to
     information supplied by the Company or by the Underwriters and the parties'
     relative intent, knowledge, access to information and opportunity to
     correct or prevent such statement or omission. The amount paid or payable
     by a party as a result of the losses, expenses, damages, judg-





                                       18

<PAGE>   19



     ments, liabilities and claims referred to above shall be deemed to include
     any legal or other fees or expenses reasonably incurred by such party in
     connection with investigating or defending any claim or action.

         (d) The Company and the Underwriters agree that it would not be just
     and equitable if contribution pursuant to this Section 11 were determined
     by pro rata allocation (even if the Underwriters were treated as one entity
     for such purpose) or by any other method of allocation that does not take
     account of the equitable considerations referred to in subsection(c) above.
     Notwithstanding the provisions of this Section 11, no Underwriter shall be
     required to contribute any amount in excess of the amount by which the
     total price at which the Shares underwritten by such Underwriter 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 statement 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 Underwriter's obligations to contribute pursuant to this Section 11 are
     several in proportion to their respective underwriting commitments and not
     joint.

         (e) The indemnity and contribution agreements contained in this
     Section 11 and the covenants, warranties and representations of the Company
     contained in this Agreement shall remain in full force and effect
     regardless of any investigation made by or on behalf of any Underwriter
     indemnified party, or by or on behalf of any Company indemnified party, and
     shall survive any termination of this Agreement or the issuance and
     delivery of the Shares. The indemnity and contribution agreements contained
     in this Section 11 are in addition to any other remedies that the parties
     hereto may have in equity or at law. The Company and each Underwriter agree
     promptly to notify the others of the commencement of any litigation or
     proceeding against it and, in the case of the Company, against any of the
     Company's officers and directors in connection with the issuance and sale
     of the Shares, or in connection with the Registration Statement or
     Prospectus.

     10. Information Supplied by the Underwriters.

         (a) The statements set forth in the last paragraph on the front cover
     page and the inside front cover page of the Prospectus relating to the
     Shares and the [paragraphs] under the heading "Underwriting" in the
     Prospectus relating to the Shares (to the extent such statements relate to
     the Underwriters) constitute the only information furnished by the
     Underwriters to the Company for the purposes of Section 11(b) hereof. Each
     Underwriter confirms that such statements, to the extent such statements
     relate to each such Underwriter, are correct in all material respects.

     11. Notices.  Except as otherwise herein provided, all statements,
requests, notices and agreements shall be in writing or by telegram and, if to
the Underwriters, shall be sufficient in all respects if delivered or sent to
Warburg Dillon Read LLC, 299 Park Avenue, New York, NY 10171-0026, Attention:
Syndicate Department and, if to the Company, shall be sufficient in all respects
if delivered or sent to the Company at the offices of the Company at 1419 Lake
Cook Road, Suite 410, Deerfield, IL 60015, Attention: President and Chief
Executive Officer.

     12. Governing Law; Construction.  This 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 law. The section headings in this Agreement have
been inserted as a matter of convenience of reference and are not a part of this
Agreement.

     13. Submission to Jurisdiction.  Except as set forth below, no Claim may be
commenced, prosecuted or continued in any court other than the courts of the
State of New York located in the City and County of New York or in the United
States District Court for the Southern District of New York, which courts shall
have jurisdiction over the adjudication of such matters, and the Company
consents to the jurisdiction of such courts and personal service with respect
thereto. The Company hereby consents to personal jurisdic-




                                       19


<PAGE>   20



tion, service and venue in any court in which any Claim arising out of or in any
way relating to this Agreement is brought by any third party against Warburg
Dillon Read LLC or any indemnified party. Each of Warburg Dillon Read LLC and
the Company (on its behalf and, to the extent permitted by applicable law, on
behalf of its stockholders and affiliates) waives all right to trial by jury in
any action, proceeding or counterclaim (whether based upon contract, tort or
otherwise) in any way arising out of or relating to this Agreement. The Company
agrees that a final judgment in any such action, proceeding or counterclaim
brought in any such court shall be conclusive and binding upon the Company and
may be enforced in any other courts in the jurisdiction of which the Company is
or may be subject, by suit upon such judgment.

     14. Parties at Interest. The Agreement herein set forth has been and is
made solely for the benefit of the Underwriters and the Company and the
Underwriter indemnified parties and the Company indemnified parties referred to
in Section 11 hereof, and their respective successors, assigns, executors and
administrators. No other person, partnership, association or corporation
(including a purchaser, as such purchaser, from any of the Underwriters) shall
acquire or have any right under or by virtue of this Agreement.

     15. Counterparts. This Agreement may be signed by the parties in
counterparts which together shall constitute one and the same agreement among
the parties.

     16. Successors and Assigns. This Agreement shall be binding upon the
Underwriters and the Company and their successors and assigns and any successor
or assign of any substantial portion of the Company's and any of the
Underwriters' respective businesses and/or assets.

     17. Miscellaneous.  Warburg Dillon Read LLC, an indirect, wholly owned
subsidiary of [  ], is not a bank and is separate from any affiliated bank,
including any U.S. branch or agency of Warburg Dillon Read LLC. Because Warburg
Dillon Read LLC is a separately incorporated entity, it is solely responsible
for its own contractual obligations and commitments, including obligations with
respect to sales and purchases of securities. Securities sold, offered or
recommended by Warburg Dillon Read LLC are not deposits, are not insured by the
Federal Deposit Insurance Corporation, are not guaranteed by a branch or agency,
and are not otherwise an obligation or responsibility of a branch or agency.

     A lending affiliate of Warburg Dillon Read LLC may have lending
relationships with issuers of securities underwritten or privately placed by
Warburg Dillon Read LLC. To the extent required under the securities laws,
prospectuses and other disclosure documents for securities underwritten or
privately placed by Warburg Dillon Read LLC will disclose the existence of any
such lending relationships and whether the proceeds of the issue will be used to
repay debts owed to affiliates of Warburg Dillon Read LLC. 





                                       20

<PAGE>   21



     If the foregoing correctly sets forth the understanding among the Company
and the Underwriters, please so indicate in the space provided below for the
purpose, whereupon this letter and your acceptance shall constitute a binding
agreement among the Company and the Underwriters, severally.

                                        Very truly yours,

                                        STERICYCLE, INC.


                                        By: ___________________________________
                                                Name:
                                                Title:


Accepted and agreed to as of the date first above written,
on behalf of themselves and the other several Underwriters
named in Schedule A

WARBURG DILLON READ LLC
BT ALEX. BROWN INCORPORATED
CREDIT SUISSE FIRST BOSTON CORPORATION
WILLIAM BLAIR & COMPANY, L.L.C.

By: WARBURG DILLON READ LLC


By: ___________________________________
      Name:
      Title:





                                       21


<PAGE>   22




                                   SCHEDULE A



Underwriter                                                Number of Firm Shares
- -----------                                                ---------------------

Warburg Dillon Read LLC
BT Alex. Brown Incorporated
Credit Suisse First Boston Corporation
William Blair & Company, L.L.C.

                      Total................................    3,500,000






                                       22
<PAGE>   23



                                   SCHEDULE B

            Opinions of Local Counsel - Jurisdiction (Section 6(c))


California

Connecticut

Illinois

Massachusetts

Rhode Island

Oregon

Washington

Wisconsin




                                       23

<PAGE>   1
                               JOHNSON AND COLMAR
                             300 South Wacker Drive
                                   Suite 1000
                            Chicago, Illinois 60606
                           Telephone: (312) 922-1980
                           Telecopier: (312) 922-9283
                                        
                                        
                                        
                                        
                                February 3, 1999
                                        
                                        

Board of Directors
Stericycle, Inc.
28161 North Keith Drive
Lake Forest, Illinois 60045

                        Re: Registration Statement on Form S-3

Gentlemen:

     We have acted as counsel to Stericycle, Inc. (the "Company") in connection
with the preparation and filing with the Securities and Exchange Commission of a
Registration Statement on Form S-3 (the "Registration Statement") for the
registration (Registration No. 333-60591) under the Securities Act of 1933, as
amended, of 4,025,000 shares of the Company's Common Stock, par value $.01 per
share (the "Shares"), of which 3,500,000 Shares are to be offered for sale in a
public offering underwritten by Warburg Dillon Read LLC, BT Alex. Brown
Incorporated, Credit Suisse First Boston Corporation, William Blair & Company,
L.L.C. and other underwriters (the "Underwriters") and 525,000 Shares are
intended to cover the Underwriters' over-allotments, if any.

     As such counsel, we have examined the Registration Statement (including the
prospectus which is part of the Registration Statement), as the Registration
Statement (and prospectus) have been amended to date, the Company's certificate
of incorporation and by-laws, each as amended to date, minutes of meetings and
records of proceedings of the Company's Board of Directors and stockholders
(including, but not limited to, the Consents of Directors respectively dated as
of May 26, 1998 and January 27, 1999, signed by all of the Company's directors,
pursuant to which, in accordance with section 141(f) of the General Corporation
Law of the State of Delaware (the "Delaware General Corporation Law"), the
Company's Board of Directors adopted certain resolutions without the necessity
of formal meetings of the Board of Directors), and such other matters of fact
and questions of law as we have considered necessary to form the basis of our
opinion. In the course of this







<PAGE>   2


Board of Directors
February 3, 1999
Page Two


examination, we have assumed the genuineness of all signatures, the authenticity
of all documents and certificates submitted to us as originals by
representatives of the Company, public officials and third parties, and the
conformity to and authenticity of the originals of all documents and
certificates submitted to us as copies.

     On the basis of our examination, we are of the opinion that the Company has
duly authorized the issuance of the Shares and that, when issued and delivered
to the Underwriters against payment in accordance with the underwriting
agreement to be entered into by the Company and Warburg Dillon Read LLC, BT
Alex. Brown Incorporated, Credit Suisse First Boston Corporation and William 
Blair & Company, L.L.C., as managing Underwriters and representatives of the 
several Underwriters to be named in Schedule A to the underwriting agreement, 
the Shares will be validly issued, fully paid and nonassessable.

     We consent to the use of our opinion as an exhibit to the Registration
Statement.


                                         Very truly yours,

                                         /s/ Johnson and Colmar

                                         JOHNSON AND COLMAR





<PAGE>   1
                                                                    EXHIBIT 23.1


                        CONSENT OF INDEPENDENT AUDITORS

     We consent to the reference to our firm under the captions "Experts" and
"Selected Consolidated Financial Data" and to the use of our report dated March 
6, 1998, in the Registration Statement on Form S-3 (No. 333-60591) and related 
Prospectus of Stericycle, Inc. for the registration of 4,025,000 shares of its 
common stock.

                                                       ERNST & YOUNG LLP 
 

Chicago, Illinois
February 3, 1999

<PAGE>   1
                                                                    EXHIBIT 23.2

                        CONSENT OF INDEPENDENT AUDITORS


         As independent certified public accountants, we hereby consent to the
inclusion in the Registration Statement on Form S-3 filed by Stericycle, Inc.
(Registration No. 333-60591) for the registration of 4,025,000 shares of common
stock of our report dated November 4, 1998 on consolidated financial statements
of Waste Systems, Inc. and Subsidiary as of and for the years ended December 31,
1997 and 1996, and to all references to our firm in the Registration Statement.



                                             HEARD, McELROY & VESTAL, L.L.P.


Shreveport, Louisiana
January 8, 1999

<PAGE>   1
                                                                    EXHIBIT 23.3

                  CONSENT OF INDEPENDENT CHARTERED ACCOUNTANTS



         As independent chartered accountants, we hereby consent to the
inclusion in the Registration Statement on Form S-3 filed by Stericycle, Inc.
(Registration No. 333-60591) for the registration of 4,025,000 shares of common
stock of our report dated May 20, 1998, except as to Notes 11(c) and 11(d),
which are as of November 16, 1998, on the consolidated financial statements of
Med-Tech Environmental Limited as at and for the years ended March 31, 1998 and
1997, and to all references to our firm in the Registration Statement.


                                                      COLLINS BARROW
                                                      CHARTERED ACCOUNTANTS



Toronto, Canada
May 20, 1998,
except as to Notes 11(c) and 11(d),
which are as of November 16, 1998


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