Exhibit 3.256
                          CERTIFICATE OF INCORPORATION
                                       OF
                                  EMCARE, INC.

                    Pursuant to the provisions of Section 102

                        of the General Corporation Law of

                              the State of Delaware

     I,  the  undersigned,   for  the  purpose  of  creating  and  organizing  a
corporation  under the  provisions  of and  subject to the  requirements  of the
General Corporation Law of the State of Delaware, do HEREBY CERTIFY as follows:

     FIRST: That the name of the corporation (the "Corporation") is:

EmCare, Inc.

     SECOND: That the address of the registered office of the Corporation in the
State of Delaware is 1013 Centre Road, in the city of Wilmington,  County of New
Castle 19805. The name of the Corporation's  registered agent at such address is
Corporation Service Company.

     THIRD:  That the purposes for which the Corporation is formed are to engage
in any lawful act or activity for which  corporations may be organized under the
Delaware General Corporation Law.

     FOURTH:  That the aggregate number of shares of stock which the Corporation
shall have  authority to issue is One Thousand  (1,000)  shares of Common Stock,
par value $0.01.

     FIFTH:  That the name and mailing  address of the sole  incorporator of the
Corporation are as follows:

J. Forbes Anderson
1717 Main Street, Suite 5200
Dallas, Texas  75201

     SIXTH: That in furtherance and not in limitation of the powers conferred by
the laws of the State of Delaware,  the Board of Directors of the corporation is
expressly  authorized  and empowered to make,  alter or repeal the Bylaws of the
Corporation,  subject to the power of the  stockholders  of the  Corporation  to
alter or repeal

CERTIFICATE OF INCORPORATION--EMCARE, INC.
Page 1
DA923630.054



any bylaw made by the board of directors.  Election of directors  need not be by
written ballot.

     SEVENTH:  That the Corporation reserves the right at any time and from time
to time to amend,  alter,  change  or repeal  any  provision  contained  in this
Certificate of Incorporation  in the manner now or hereafter  prescribed by law,
and rights,  preferences  and  privileges of whatsoever  nature  conferred  upon
stockholders, directors, or any other persons whomsoever by and pursuant to this
Certificate  of  Incorporation  in its present form or as hereafter  amended are
granted subject to the right reserved in this Article.

     EIGHTH:  No person shall be  personally  liable to the  Corporation  or its
stockholders  for monetary  damages for breach of fiduciary  duty as a director,
provided, however, that the foregoing shall not eliminate or limit the liability
of a  director  (i) for any  breach of the  director's  duty of  loyalty  to the
Corporation or its stockholders, (ii) for acts or omissions not in good faith or
which involve intentional  misconduct or a knowing violation of law, (iii) under
Section 174 of the General Corporation Law of the State of Delaware, or (iv) for
any transaction from which the director derived an improper personal benefit. If
the General  Corporation  Law of the State of  Delaware is amended to  authorize
corporate  action  further  eliminating  or limiting the  personal  liability of
directors,  then  the  liability  of a  director  of the  corporation  shall  be
eliminated or limited to the fullest extent permitted by the general Corporation
Law of the State of Delaware,  as so amended.  Any repeal or modification of the
provisions of this Article Eighth by the  stockholders of the Corporation  shall
not adversely  affect any right or  protection of a director of the  Corporation
existing at the time of such repeal or modification.

[SIGNATURE ON NEXT PAGE]

CERTIFICATE OF INCORPORATION--EMCARE, INC.
Page 2
DA923630.054

     IN WITNESS  WHEREOF,  the undersigned,  being the incorporator  hereinabove
named,  for the  purpose  of  forming  a  corporation  pursuant  to the  General
Corporation  Law of the State of Delaware,  does make this  Certificate,  hereby
declaring,  certifying  and  acknowledging  under  penalties of perjury that the
facts herein stated are true and that this  Certificate is his act and deed, and
accordingly has hereunto set his hand, this 19th day of January, 1993.

/s/ J. Forbes Anderson
- --------------------------------
J. Forbes Anderson
Incorporator

                                       2


ARTICLES OF MERGER

Pursuant to the  provisions  of Article 5.04 of the Texas  Business  Corporation
Act, as amended (the "TBCA"),  and Section 252 of the General Corporation Law of
the State of Delaware, as amended ("GCL"),  EmCare, Inc., a Delaware corporation
("EmCare  Delaware"  or  "Surviving  Corporation"),  and EmCare,  Inc.,  a Texas
corporation  ("EmCare  Texas")  adopt the  following  Articles of Merger for the
purpose of merging EmCare Texas into the Surviving Corporation.

1.   The Agreement of Merger (the  "Agreement"),  dated as of February 25, 1993,
by and among EmCare Texas and EmCare Delaware,  attached hereto as Exhibit A and
incorporated  herein by  reference,  contains  the terms and  conditions  of the
merger of EmCare Texas and EmCare Delaware. The Agreement was adopted, approved,
certified,  executed and acknowledged by the sole shareholder of EmCare Texas in
the  manner  prescribed  by the  TBCA.  The  Agreement  was  adopted,  approved,
certified,  executed and acknowledged by the sole shareholder of EmCare Delaware
in the manner prescribed by the GCL.

2.   As to each of the  undersigned  corporations,  the  total  number of shares
outstanding  and entitled to vote on the Agreement,  and the  designation of and
number of  outstanding  shares of each class  entitled to vote as a class on the
Agreement, are as follows:



                                  ENTITLED TO VOTE
                                  ONLY AS A CLASS
                  TOTAL
                  NUMBER OF
                  SHARES OF       DESIGNATION
NAME OF           COMMON STOCK    OF              NUMBER OF
CORPORATION       OUTSTANDING     CLASS           SHARES
                                         
EmCare Texas      125,000         Common          125,000

EmCare Delaware   1,000           Common          1,000


3.   As to each of the  undersigned  corporations,  the  total  number of shares
voted  for and  against  the  Agreement,  respectively,  and,  as to each  class
entitled  to vote  thereon as a class,  the number of shares of such class voted
for and against the Agreement, respectively, are as follows:

ARTICLES OF MERGER
Page 1
DA930530.150

                                    ENTITLED TO VOTE
                                    ONLY AS A CLASS

                          TOTAL
NAME OF       TOTAL       VOTED             VOTED    VOTED
CORPORATION   VOTED FOR   AGAINST   CLASS   FOR      AGAINST

                                       3


EmCare Texas        125,000   0    Common    125,000   0

EmCare Delaware     1,000     0    Common    1,000     0

4. The Articles of Incorporation of the Surviving Corporation shall be set forth
in their entirety below:

CERTIFICATE OF INCORPORATION

OF

EMCARE, INC.

Pursuant to the provisions of Section 102

of the General corporation Law of

the State of Delaware

I, the undersigned, for the purpose of creating and organizing a corporation
under the provisions of and subject to the requirements of the General
Corporation Law of the State of Delaware, do HEREBY CERTIFY as follows:

FIRST:   That the name of the corporation (the "Corporation") is:

EmCare, Inc,

SECOND: That the address of the registered office of the Corporation in the
State of Delaware is 1013 Centre Road, in the city of Wilmington, County of New
Castle 19805. The name of the Corporation's registered agent at such address is
Corporation Service Company.

THIRD: That the purposes for which the Corporation is formed are to engage in
any lawful act or activity for which corporations may be organized under the
Delaware General Corporation Law.

ARTICLES OF MERGER
Page 2
DA930530.180

FOURTH: That the aggregate number of shares of stock which the Corporation shall
have authority to issue is One Thousand (1,000) shares of Common Stock, par
value $0.01.

FIFTH: That the name and mailing address of the sole incorporator of the
Corporation are as follows:

                                       4


J. Forbes Anderson
1717 Main Street, Suite 5200
Dallas, Texas  75201

SIXTH: That in furtherance and not in limitation of the powers conferred by the
laws of the State of Delaware, the Board of Directors of the Corporation is
expressly authorized and empowered to make, alter or repeal the Bylaws of the
Corporation, subject to this power of the stockholders of the Corporation to
alter or repeal any Bylaw made by the Board of Directors. Election of Directors
used not be by written ballot.

SEVENTH: That the Corporation reserves the right at any time and from time to
time to amend, alter, change or repeal any provision contained in this
Certificate of Incorporation in the manner now or hereafter proscribed by law,
and rights, preferences and privileges of whatsoever nature conferred upon
stockholders, directors, or any other parsons whomsoever by and pursuant to this
Certificate of Incorporation in its present torn or as hereafter amended are
granted subject to the right reserved in this Article.

EIGHTH: No person shall be personally liable to the corporation or its
stockholders for monetary damages for breach of fiduciary duty as a director,
provided, however, that the foregoing shall not eliminate or limit the liability
of a director (i) for any breach of the director's duty of loyalty to the
Corporation or its stockholders, (ii) for acts or omissions not in good faith or
which involve intentional misconduct or a knowing violation of law, (iii) under
Section 174 of the General Corporation Law of the State of Delaware, or (iv) for
any transaction from which the director derived an improper personal benefit. If
the General Corporation Law of the State of Delaware is amended to authorize
corporate action further eliminating or limiting the personal liability of
directors, then the liability of a director of the Corporation shall be
eliminated or limited to the fullest extent permitted by the general Corporation
Law of the State of Delaware, as so amended. Any repeal or modification of the
provisions of this Article Eighth by the stockholders of the Corporation shall
not adversely affect any right or protection of a director of the Corporation
existing at the time of such repeal or modification.

                            [SIGNATURES ON NEXT PAGE]

ARTICLES OF MERGER
Page 3
DA930530.180

                                       5


IN WITNESS WHEREOF, the undersigned have caused these Articles of Merger to be
executed by their respective Presidents and attested to by their respective
Secretaries on February 25, 1993.

ATTEST:                                     EMCARE, INC. (TEXAS)

By: /s/ J. Forbes Anderson                  By: /s/ William F. Miller
    --------------------------------            --------------------------------
Name: J. Forbes Anderson                    Name: William F. Miller
Title: Secretary                            Title: President

ATTEST:                                     EMCARE, INC. (DELAWARE)

By:  /s/ J. Forbes Anderson                 By: /s/ William F. Miller
     -------------------------------            --------------------------------
Name:    J. Forbes Anderson                 Name: William F. Miller
Title:  Secretary                           Title: President

ARTICLES OF MERGER
Page 4
DA930530.180

                                       6


EXHIBIT A

AGREEMENT OF MERGER

Agreement of Merger (this "Agreement"), dated as of February 25, 1993, between
EmCare, Inc., a Texas corporation ("EmCare Texas") and EmCare, Inc., a Delaware
corporation ("EmCare Delaware", together with EmCare Texas, the "Merging
Companies").

WHEREAS, EmCare Texas is a corporation organized and existing under the laws of
the State of Texas and having an authorized capitalization of 500,000 shares of
common stock, $0.01 par value; and

WHEREAS, EmCare Delaware is a corporation organized and existing under the laws
of the State of Delaware and having an authorized capitalization of 1,000 shares
of common stock, $0.01 par value;

In consideration of the mutual promises and covenants, and subject to the
conditions set forth herein, the Merging Companies agree an follows:

1. Merger. The Merging Companies shall be merged into a single corporation by
EmCare Texas merging with and into EmCare Delaware, which shall survive the
merger (the "Surviving Corporation"), pursuant to the provisions of the Texas
Business Corporation Act and the Delaware General Corporation Act. Upon this
merger the separate corporate existence of EmCare Texas shall cease and the
Surviving Corporation shall become the owner, without other transfer, of all the
rights and property of EmCare Texas and EmCare Delaware, and the Surviving
Corporation shall become subject to all the debts and liabilities of the Merging
Companies in the same manner as if it had itself incurred them.

2. Effective Date. This Agreement shall become effective immediately upon
compliance with the laws of the States of Texas and Delaware (the "Effective
Date").

3. Surviving Corporation. The name of the Surviving Corporation shall be EmCare,
Inc. The purposes and county where the registered office for the Surviving
Corporation shall be located shall be as they appear in the articles of
incorporation of this Surviving Corporation.

4. Authorized Capital. The authorized capital stock of the Surviving Corporation
following the Effective Date shall be 1,000 shares of common stock, par value
$0.01, unless and until the same shall be changed in accordance with the laws of
the State of Delaware.

AGREEMENT OF MERGER
Page 1
DA930120.003

                                       7


5. Articles of Incorporation of Surviving Corporation. The articles of
incorporation of EmCare Delaware, as in effect on the Effective Date, shall be
the articles of incorporation of the Surviving Corporation, until the same shall
be altered or amended pursuant to the Delaware General Corporation Law.

6. Bylaws. The bylaws of EmCare Delaware, as in affect on the Effective Date,
shall be the bylaws of the Surviving Corporation, until the same shall be
altered, amended, or repealed, or until new bylaws are adopted as provided
therein.

7. Board of Directors. The names end addresses of the persons who shall
constitute the board of directors of the Surviving Corporation, and who shall
hold office until the first annual meeting of the shareholders of the Surviving
Corporation are as follows:

Leonard M. Riggs, Jr., M.D.                 1717 Main Street
                                            Suite 5200
                                            Dallas, Texas  75201

8. Conversion of Stock of Merging Companies. Share of stock of the Merging
Companies shall be converted into shares of the Surviving Corporation as
follows, for a total capitalization of the Surviving Corporation of 1,000
shares, par value $0.01:

(a) Shares of EmCare Texas. Upon receipt by the sole shareholder, and in
consideration of, the sum of $10.00, each share of common stock of EmCare Texas
that is issued and outstanding on the Effective Date of merger shall be
cancelled, and such sole shareholder shall not receive shares of common stock of
the Surviving Corporation.

(b) Shares of EmCare Delaware. Each share of common stock of EmCare Delaware
that is issued and outstanding on the Effective Date of the merger shall be
converted as a whole to 1,000 shares of common stock, par value $0.01, of the
Surviving Corporation.

(c) Shareholders in the Surviving Corporation shall be entitled to receive any
and all dividends on stock of the Surviving Corporation that may be declared and
paid between the Effective Date of the merger and issuance to such

AGREEMENT OF MERGER
Page 2
DA930120.003

shareholder of a certificate of common stock in the Surviving Corporation.

                                       8


9. Retirement of Stock. On and after the Effective Date of the merger, all of
the shareholders in EmCare Texas shall surrender for cancellation their
certificates of stock in that corporation to the Surviving Corporation by
delivering the same to its appointed agent, at 1717 Main Street, Suite 5200,
Dallas, Texas 75201.

10. Approval of Shareholders. This Agreement shall be submitted to the
shareholders of the Merging Companies for their approval in the manner provided
by the applicable laws of the States of Texas and Delaware at such time as the
boards of directors of the Merging Companies shall agree.

11. Abandonment by Board of Directors. The directors of the Merging Companies
may, in their discretion, abandon this merger, subject to the rights of third
parties under and contracts relating to this merger without further action or
approval by the shareholders of the Merging Companies, at any time before the
merger has been completed.

12. Counterparts. This Agreement may be executed in any number of counterparts,
and all such counterparts and copies shall be and constitute one original
instrument.

13. Tax-Free Merger. This Agreement is considered to be a tax-free merger
pursuant to Section 368(a)(1)(A) of the Internal Revenue Code of 1986, as
amended.

[SIGNATURES ON NEXT PAGE]

AGREEMENT OF MERGER
Page 3
DA930120.003

                                       9



IN WITNESS WHEREOF, each of the parties hereto has caused this Agreement to be
executed by the undersigned on the date first written above.

EMCARE, INC. (TEXAS)

By: /s/ William F. Miller, III
    -----------------------------------
Name: William F. Miller III
Title: President

EMCARE, INC. (DELAWARE)

By: /s/ William F. Miller III
    -----------------------------------
Name: William F. Miller III
Title: President

AGREEMENT OF MERGER
Page 4
DA930120.003

                                       10


                              CERTIFICATE OF MERGER
                                       OF
             EMCARE PHYSICIANS NETWORK, INC., a Delaware corporation
                                       AND
              EMCARE RECEIVABLES CORPORATION, a Nevada corporation
                                  WITH AND INTO
                      EMCARE, INC., a Delaware corporation

PURSUANT TO SECTION 252 OF THE DELAWARE GENERAL CORPORATION LAW

The undersigned corporation hereby certifies that:

FIRST: The names and states of incorporation of the constituent corporations are
as follows:

Name                                                     State of Incorporation

EmCare, Inc.                                             Delaware

EmCare Receivables Corporation                           Nevada

EmCare Physicians Network, Inc.                          Delaware

SECOND: A Plan of Merger has been approved, adopted, certified, executed and
acknowledged by each of the constituent corporations in accordance with the
requirements of Section 252 of the General Corporation Law of the State of
Delaware.

THIRD: The name of the surviving corporation of the merger is EmCare, Inc.

FOURTH: Upon the effectiveness of the merger, the Certificate of Incorporation
of EmCare, Inc., a Delaware corporation, shall be the Certificate of
Incorporation of the surviving corporation.

FIFTH: The executed Agreement of Merger is on file at the office of the
surviving corporation. The address of said office is 1717 Main Street, Suite
5200, Dallas, Texas 75201.

SIXTH: A copy of the Agreement of Merger will be furnished by the surviving
corporation, on request and without cost, to any stockholder of any constituent
corporation.

SEVENTH: The authorized capital stock of EmCare Receivables Corporation, a
Nevada corporation is 1,000 shares at a $1.00 Par Value.

[SIGNATURES APPEAR ON FOLLOWING PAGE]

Dated: November 30, 1998.

                                       11


EmCare, Inc., a Delaware corporation

By: /s/ William F. Miller, III
    -----------------------------------
    William F. Miller, III
    President

Attest by:

/s/ Scott W. Roloff
- ---------------------------------------
Scott W. Roloff
Secretary

DA982930.063/2+

                                       12


                              CERTIFICATE OF MERGER

This Certificate of Merger (this "Certificate"), dated as of August 31, 1997, is
filed in connection with the merger of DOKTAH, L.L.C., a Delaware limited
liability company (the "Acquired Company"), into EmCare, Inc., a Delaware
corporation (the "Surviving Corporation").

Section 1 Acquired Company. The name of the Acquired Company is DOKTAH, L.L.C.
The Acquired Company is a Delaware limited liability company.

Section 2 Surviving Corporation. The name of the Surviving Corporation is
EmCare, Inc. The Surviving Corporation is a Delaware corporation.

Section 3 Merger Agreement. The Acquired Company and the Surviving Corporation
entered into an Agreement of Merger (the "Merger Agreement"), dated as of August
31, 1997, under which the Acquired Company agreed to merge into the Surviving
Corporation. The Acquired Company and the Surviving Corporation each approved,
adopted, certified, executed, and acknowledged the Merger Agreement in
accordance with Section 264(c)(2) of the Delaware General Corporation Law.

Section 4  Name.  The name of the Surviving Corporation shall be "EmCare, Inc."

Section 5 Certificate of Incorporation. No amendments or changes to the
Surviving Corporation's certificate of incorporation will be effected by the
merger. The certificate of incorporation of the Surviving Corporation
immediately before the merger shall remain the certificate of incorporation of
the Surviving Corporation immediately after the merger.

Section 6 Merger Agreement on File. An executed copy of the Merger Agreement is
on file at the office of the Surviving Corporation. The address of this office
is 1717 Main Street, Suite 5200, Dallas, Texas 75201.

Section 7 Copies of the Merger Agreement. The Surviving Corporation will furnish
a copy of the Merger Agreement, on request and without cost, to any stockholder
of the Surviving Corporation or former member of the Acquired Company.

IN WITNESS WHEREOF, the Surviving Corporation has executed this Certificate as
of the date first written above to be effective upon filing with the Delaware
Secretary of State.

EMCARE, INC.

By:  /s/ Robert F. Anderson, II
- ----------------------------------------
Name: Robert F. Anderson, II
Title: Senior Vice President

Document # 61583 v. 01 Dallas
Client/Matter # 013100\0000

                                       13


CERTIFICATE OF OWNERSHIP AND MERGER
(ARTICLES OF MERGER)
MERGING
EMCARE PHYSICIAN STAFFING SERVICES, INC., A .TEXAS CORPORATION
INTO
EMCARE, INC., A DELAWARE CORPORATION

Pursuant to the provisions of Section 253 of the Delaware General Corporation
Law (the "DGCL") and Article 5.16 of the Texas Business Corporation Act (the
"TBCA"), the undersigned, being the Chairman of the Board and the Secretary of
EmCare, Inc., a Delaware corporation, do hereby certify that:

1. The name of the subsidiary corporation is EmCare Physician Staffing Services,
Inc., a Texas corporation, and the name of the parent corporation is EmCare,
Inc., a Delaware corporation.

2. The number of outstanding shares of the subsidiary corporation is 1,000
shares of common stock, par value $.01 per share, and the number of such shares
owned by the parent is 1,000.

3. The resolutions attached hereto as Exhibit A were adopted by the board of
directors of the parent corporation on March 30, 1994 to merge the subsidiary
corporation into the parent corporation.

4. The merger of the subsidiary corporation into the parent corporation is
effective upon the issuance of a Certificate of Merger by the Secretary of
State.

5. The address of the registered office of the surviving corporation in the
State of Delaware is 1013 Centre Road, in the City of Wilmington, County of New
Castle. The name of the surviving corporation's registered agent at such address
is Corporation Service Company.

The parent corporation hereby: (a) agrees that it may be served with process in
the State of Texas in any proceeding for the enforcement of any obligation of
the subsidiary corporation and in any proceeding for the enforcement of the
rights of a dissenting shareholder of the subsidiary corporation against the
parent corporation, (b) irrevocably appoints the Secretary of the State of Texas
as its agent to accept service of process in any such proceeding; and (c) agrees
that it will promptly pay to the assenting shareholders of the subsidiary
corporation the amount, if any, to which they shall be entitled under the
provisions of the TBCA with respect to the rights of dissenting shareholders.

[SIGNATURES ON NEXT PAGE]

EMCARE, INC.

                                       14


By:  /s/ Leonard M. Riggs, Jr., M.D.
     ----------------------------------------
     Leonard M. Riggs, Jr., M.D.
     Chairman of the Board

ATTEST:

/s/ Gary W. Cage
- ---------------------------------
Gary W. Cage
Secretary

DA940620.0494+

                                       15


                                    EXHIBIT A

                             WRITTEN CONSENT OF THE
                               BOARD OF DIRECTORS
                                       OF
                                  EMCARE, INC.

The undersigned, being the entire board of directors of EMCARE, INC., a Delaware
corporation (the "Corporation"), pursuant to Section 141(f) of the Delaware
General Corporation Law, do hereby consent to and adopt the following
resolutions:

WHEREAS, the Corporation owns 100 percent of the outstanding shares of EmCare
Physician Staffing Services, Inc., a Texas corporation (the "Subsidiary
Corporation");

WHEREAS, the Corporation desires to merge the Subsidiary Corporation with and
into the Corporation, and each of the directors deems such a merger to be in the
best interests of the Corporation; and

WHEREAS, there are no minority shareholders;

NOW, THEREFORE, BE IT RESOLVED, that the Corporation merge the Subsidiary
Corporation into itself and assume all of the Subsidiary Corporation's
obligations; and

RESOLVED FURTHER, that the officers of the Corporation be, and each of them
hereby is empowered and directed to do all things necessary or proper for the
full and complete accomplishment of said merger, including execution and filing
of a Certificate of Ownership or Articles of Merger as required by law.

The undersigned executed this written consent (which he may do by signature
transmitted via facsimile machine) as of the 30th day of March, 1994.

/s/ Leonard M. Riggs, Jr., M.D.
- -------------------------------------------
Leonard M. Riggs, Jr., M.D.

DA940620.051/2+

Board of Directors Consent (EmCare, Inc.)

                                       16


                            CERTIFICATE OF OWNERSHIP

                                     MERGING
               EMCARE MEDICAL SERVICES, INC., A TEXAS CORPORATION
                                      INTO
                      EMCARE, INC., A DELAWARE CORPORATION

Pursuant to the provisions of Section 253 of the Delaware General Corporation
Law (the "DGCL") and Article 5.16 of the Texas Business Corporation Act (the
"TBCA"), the undersigned, being the Chairman of the Board and the Secretary of
EmCare, Inc., a Delaware corporation, do hereby certify that:

1. The name of the subsidiary corporation is EmCare Medical Services, Inc., a
Texas corporation, and the name of the parent corporation is EmCare, Inc., a
Delaware corporation.

2. The number of outstanding shares of the subsidiary corporation is 1,000
shares of common stock, par value $1.00 per share, and the number of such shares
owned by the parent is 1,000.

3. The resolutions attached hereto as Exhibit A were adopted by the board of
directors of the parent corporation on December 30, 1993 to merge the subsidiary
corporation into the parent corporation.

4. The merger of the subsidiary corporation into the parent corporation is
effective as of December 31, 1993.

5. The address of the registered office of the surviving corporation in the
State of Delaware is 1013 Centre Road, in the City of Wilmington, County of New
Castle. The name of the surviving corporation's registered agent at such address
is Corporation Service Company.

The parent corporation hereby: (a) agrees that it may be served with process in
the State of Texas in any proceeding for the enforcement of any obligation of
the subsidiary corporation and in any proceeding for the enforcement of the
rights of a dissenting shareholder of the subsidiary corporation against the
parent corporation, (b) irrevocably appoints the secretary of the State of Texas
as its agent to accept service of process in any such proceeding; and (c) agrees
that it will promptly pay to the assenting shareholders of the subsidiary
corporation the amount, if any, to which they shall be entitled under the
provisions of the TBCA with respect to the rights of dissenting shareholders.

[SIGNATURES ON NEXT PAGE]

                                       17


EMCARE, INC.

/s/ Leonard M. Riggs, Jr., M.D.
- ----------------------------------------
Leonard M. Riggs, Jr., M.D.
Chairman of the Board

ATTEST:

/s/ J. Forbes Anderson
- ----------------------------------------
J. Forbes Anderson
Secretary

DA903340.057/11+

                                       18


                                    EXHIBIT A

                             WRITTEN CONSENT OF THE
                               BOARD OF DIRECTORS
                                       OF
                                  EMCARE, INC.

The undersigned, being the entire board of directors of EMCARE, INC., a Delaware
corporation (the "Corporation"), pursuant to Section 141(f) of the Delaware
General Corporation Law, do hereby consent to and adopt the following
resolutions:

WHEREAS, the Corporation owns 100 percent of the outstanding shares of EmCare
Medical Services, Inc., a Texas corporation (the "Subsidiary Corporation");

WHEREAS, the Corporation desires to merge the Subsidiary Corporation with and
into the Corporation as of December 31, 1993, and each of the directors deems
such a merger to be in the best interests of the Corporation; and

WHEREAS, there are no minority shareholders;

NOW, THEREFORE, BE IT RESOLVED, that the Corporation merge the Subsidiary
Corporation into itself and assume all of the Subsidiary Corporation's
obligations; and

RESOLVED FURTHER, that the officers of the Corporation be, and each of them
hereby is empowered and directed to do all things necessary or proper for the
full and complete accomplishment of said merger as of December 31, 1993
including execution and filing of a Certificate of Merger (articles of merger)
as required by law.

Each of the undersigned has executed this written consent (which he may do by
signature transmitted via facsimile machine) as of the 30th day of December,
1993.

/s/ Leonard M. Riggs, Jr., M.D.
- ---------------------------------------
Leonard M. Riggs, M.D.

DA933340.095/8+

Board of Directors Consent (EmCare, Inc.)

                                       19