Exhibit 3.32

                    CERTIFICATE OF CHANGE OF REGISTERED AGENT

                                       AND

                                REGISTERED OFFICE

                                    * * * * *

      American Medical Response of Illinois, Inc., a corporation organized and
existing under and by virtue of the General Corporation Law of the State of
Delaware, DOES HEREBY CERTIFY:

      The present registered agent of the corporation is Corporation Service
Company and the present registered office of the corporation is in the county of
New Castle.

      The Board of Directors of American Medical Response of Illinois, Inc.,
adopted the following resolution on the 1st day of September, 1996.

      Resolved, that the registered office of American Medical Response of
Illinois, Inc. in the state of Delaware be and it hereby is changed to
Corporation Trust Center, 1209 Orange Street, in the City of Wilmington, County
of New Castle, and the authorization of the present registered agent of this
corporation be and the same is hereby withdrawn, and THE CORPORATION TRUST
COMPANY, shall be and is hereby constituted and appointed the registered agent
of this corporation at the address of its registered office.

IN WITNESS WHEREOF, American Medical Response of Illinois, Inc. has caused this
statement to be signed by William George, its Vice President this 1st day of
September, 1996.

                                                     By: /s/ William George
                                                         -----------------------
                                                         William George
                                                         Vice President



                              CERTIFICATE OF MERGER

                                       OF

                              MVA ACQUISITION, INC.

                                      INTO

                            AMERICAN MEDICAL RESPONSE

                                OF ILLINOIS, INC.

      (Pursuant to Section 251 of the General Corporation Law of Delaware)

      American Medical Response of Illinois, Inc., DOES HEREBY CERTIFY:

      FIRST: That the names and states of incorporation of each of the
constituent corporations of the merger are as follows:



           NAME                                     STATE OF INCORPORATION
                                                 
American Medical Response                                  Delaware
    of Illinois, Inc.

MVA Acquisition, Inc.                                      Delaware


      SECOND: That an agreement of merger between the parties to the merger has
been approved, adopted, certified, executed and acknowledged by each of the
constituent corporations in accordance with requirements of Section 251 of the
General Corporation Law of the State of Delaware.

      THIRD: The surviving corporation of the merger is American Medical
Response of Illinois, Inc., a Delaware corporation.

      FOURTH: That the Certificate of Incorporation of American Medical Response
of Illinois, Inc. shall continue unaffected and unimpaired by the merger and
shall continue as the Certificate of Incorporation of the surviving corporation.



      FIFTH: That the executed agreement of merger is on file at the principal
executive office of the surviving corporation. The address of said principal
executive office is 555 High Grove Boulevard, Glendale Heights, Illinois 60139.

      SIXTH: That a copy of the agreement of merger will be furnished on request
and without cost to any stockholder of any constituent corporation.

      IN WITNESS WHEREOF, American Medical Response of Illinois, Inc. has caused
this Certificate to be signed by Mark Vandenberg, its President, and attested by
Ronald M. Levenson, its Assistant Secretary, this 31 day of August, 1995.

                                       By: /s/ Mark Vandenberg
                                           -------------------------------------
                                                   President

                                       ATTEST: /s/ Ronald Levenson
                                               ---------------------------------
                                                   Assistant Secretary



                              CERTIFICATE OF MERGER

                                       OF

                            AMSERV ACQUISITION, INC.

                                      INTO

                            AMERICAN MEDICAL RESPONSE
                                OF ILLINOIS, INC.

(Pursuant to Section 251 of the General Corporation Law of Delaware)

      American Medical Response of Illinois, Inc., DOES HEREBY CERTIFY:

      FIRST: That the names and states of incorporation of each of the
constituent corporations of the merger are as follows:



           NAME                                     STATE OF INCORPORATION
                                                 
American Medical Response                                  Delaware
    of Illinois, Inc.

Amserv Acquisition, Inc.                                   Delaware


      SECOND: That an agreement of merger between the parties to the merger has
been approved, adopted, certified, executed and acknowledged by each of the
constituent corporations in accordance with requirements of Section 251 of the
General Corporation Law of the State of Delaware.

      THIRD: The surviving corporation of the merger is American Medical
Response of Illinois, Inc., a Delaware corporation.

      FOURTH: That the Certificate of Incorporation of American Medical Response
of Illinois, Inc. shall continue unaffected and unimpaired by the merger and
shall continue as the Certificate of Incorporation of the surviving corporation.



      FIFTH: That the executed agreement of merger is on file at the principal
executive offices of the surviving corporation. The address of said principal
executive offices is 555 High Grove Boulevard, Glendale Heights, Illinois 60139.

      SIXTH: That a copy of the agreement of merger will be furnished on request
and without cost to any stockholder of any constituent corporation.

      IN WITNESS WHEREOF, American Medical Response of Illinois, Inc., has
caused this Certificate to be signed by Dominic J. Puopolo, its President and
attested by Ronald Levenson, its Assistant Secretary, this 3rd day of March,
1995.

                                             By: /s/ Dominic J. Puopolo
                                                 -------------------------------
                                                       President

                                             ATTEST: /s/ Ronald Levenson
                                                     ---------------------------
                                                     Assistant Secretary



                            CERTIFICATE OF AMENDMENT

                                       OF

                          CERTIFICATE OF INCORPORATION

                                       OF

                     AMERICAN MEDICAL RESPONSE CENTRAL, INC.

      American Medical Response Central, Inc., a corporation organized and
existing under and by virtue of the General Corporation Law of the State of
Delaware, DOES HEREBY CERTIFY:

      FIRST: That the Board of Directors of said corporation has adopted by
written consent the following resolution:

RESOLVED:   That it is advisable and in the best interest of this Corporation
            that Article 1 of the Certificate of Incorporation of this
            Corporation be amended to read in its entirety as follows:

            "1.   The name of this corporation is American Medical Response of
                  Illinois, Inc."

      SECOND: That said amendment has been consented to and authorized by the
holder of a majority of the issued and outstanding stock entitled to vote by
written consent given in accordance with the provisions of Section 228 of the
General Corporation Law of the State of Delaware.

      THIRD: That the aforesaid amendment was duly adopted in accordance with
the applicable provisions of Section 242 and 218 of the General Corporation Law
of the State of Delaware.

      IN WITNESS WHEREOF, said corporation has caused this Certificate to be
signed by Dominic J. Puopolo, its President, and attested by Ronald M. Levenson,
its Assistant Secretary, this 20 day of October, 1994.

                                                 /s/ Dominic J. Puopolo
                                        ----------------------------------------
                                        President

                                        Attested by: /s/ Ronald M. Levenson
                                                     ---------------------------
                                        Assistant Secretary



                          CERTIFICATE OF INCORPORATION

                                       OF

                     AMERICAN MEDICAL RESPONSE CENTRAL, INC.

      1. The name of this corporation is American Medical Response Central, Inc.

      2. The registered office of this corporation in the State of Delaware is
located at 1013 Centre Road, in the City of Wilmington, County of New Castle.
The name of its registered agent at such address is Corporation Service Company.

      3. The purpose of this corporation is to engage in any lawful act or
activity for which corporations may be organized under the General Corporation
Law of the State of Delaware.

      4. The total number of shares of stock that this corporation shall have
authority to issue is 3,000 shares of Common Stock, $.01 par value per share.
Each share of Common Stock shall be entitled to one vote.

      5. The name and mailing address of the incorporator is: William George,
One International Place, Boston, MA 02110-2624.

      6. Except as provided to the contrary in the provisions establishing a
class or series of stock, the amount of the authorized stock of this corporation
of any class or classes may be increased or decreased by the affirmative vote of
the holders of a majority of the stock of this corporation entitled to vote.

      7. The election of directors need not be by ballot unless the by-laws
shall so require.

      8. In furtherance and not in limitation of the power conferred upon the
board of directors by law, the board of directors shall have power to make,
adopt, alter, amend and repeal from time to time by-laws of this corporation,
subject to the right of the stockholders entitled to vote with respect thereto
to alter and repeal by-laws made by the board of directors.

      9. A director of this corporation shall not be liable to the corporation
or its stockholders for monetary damages for breach of fiduciary duty as a
director, except to the extent that exculpation from liability is not permitted
under the General Corporation Law of the State of Delaware as in effect at the
time such liability is determined. No amendment or repeal of this paragraph 9
shall apply to or have any effect on the liability or alleged liability of any
director of the corporation for or with respect to any acts or omissions of such
director occurring prior to such amendment or repeal.

      10. This corporation shall, to the maximum extent permitted from time to
time under the law of the State of Delaware, indemnify and upon request shall
advance expenses to any person who is or was a party or is threatened to be made
a party to any threatened, pending or completed action, suit, proceeding or
claim, whether civil, criminal, administrative or



investigative, by reason of the fact that such person is or was or has agreed to
be a director or officer of this corporation or while a director or officer is
or was serving at the request of this corporation as a director, officer,
partner, trustee, employee or agent of any corporation, partnership, joint
venture, trust or other enterprise, including service with respect to employee
benefit plans, against expenses (including attorney's fees and expenses),
judgments, fines, penalties and amounts paid in settlement incurred in
connection with the investigation, preparation to defend or defense of such
action, suit, proceeding or claim; provided, however, that the foregoing shall
not require this corporation to indemnify or advance expenses to any person in
connection with any action, suit, proceeding, claim or counterclaim initiated by
or on behalf of such person. Such indemnification shall not be exclusive of
other indemnification rights arising under any by-law, agreement, vote of
directors or stockholders or otherwise and shall inure to the benefit of the
heirs and legal representatives of such person. Any person seeking
indemnification under this paragraph 10 shall be deemed to have met the standard
of conduct required for such indemnification unless the contrary shall be
established. Any repeal or modification of the foregoing provisions of this
paragraph 10 shall not adversely affect any right or protection of a director or
officer of this corporation with respect to any acts or omissions of such
director or officer occurring prior to such repeal or modification.

      11. The books of this corporation may (subject to any statutory
requirements) be kept outside the State of Delaware as may be designated by the
board of directors or in the by-laws of this corporation.

      12. If at any time this corporation shall have a class of stock registered
pursuant to the provisions of the Securities Exchange Act of 1934, for so long
as such class is so registered, any action by the stockholders of such class
must be taken at an annual or special meeting of stockholders and may not be
taken by written consent.



      THE UNDERSIGNED, the sole incorporator named above, hereby certifies that
the facts stated above are true as of this 28th day of September, 1994.

                                                         /s/ William George
                                                    ----------------------------
                                                    William George, Incorporator