|EXHIBIT 10.2
|------------

August 15, 2003

Bank
of America, N.A.,     as Administrative Agent
231 South LaSalle StreetMail
Code: IL1-231-08-03Chicago,IL 60604Attn: Kristine Thennes

|Re:   Request for Waiver and Amendment of Certain Provisions of the Fifth Amended         and Restated Loan Agreement.
|----------------------------------------------------------------------------------------------------------------------

|Prime Medical Services, Inc., a
Delaware corporation (Company), certain Lenders (the
Lenders), and Bank of America, N.A., as Administrative
Agent for those Lenders (Administrative Agent), have
entered into that certain Fifth Amended and Restated Loan Agreement (as renewed, extended,
restated, and amended from time to time, the Loan
Agreement) dated as of July 26, 2002. Under the terms of certain
Guaranties (for each Guarantor defined below, the
Guaranty), certain of the
Subsidiaries (as defined in the Loan Agreement) of
Company (collectively, the Guarantors) have guaranteed
payment of the Guaranteed Indebtedness (as defined in the
Guaranty). Unless otherwise specified (i) capitalized terms used herein shall have
the same meanings as set forth in the Loan Agreement and (ii) references to
Sections are to sections of the Loan Agreement. Company
hereby requests a waiver of certain terms and provisions of the Loan Agreement and
amendments to certain other terms and provisions thereof, and Company, Lenders, and
Administrative Agent have agreed to waive and amend certain provisions of the Loan
Agreement, each subject to the terms and conditions contained herein.
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|Section 1. Company
Request. Company has formed a Wholly-Owned Subsidiary of the Company for the purpose
of acquiring Aluminum Body Corporation, a California corporation (the Aluminum
Body Acquisition). In connection with the Aluminum Body Acquisition,
Company assumed the obligations of Aluminum Body Corporation under a guaranty of a letter
of credit (the LC Guaranty). Certain assets acquired by
Company in the Aluminum Body Acquisition were subject to existing liens (the
Aluminum Liens). As a result of the Aluminum Body
Acquisition, the LC Guaranty, and the Aluminum Liens, Company is not in compliance with
(a) Paragraphs (e), (f), and
(g) of the definition of Permitted Acquisition, (b) the prohibition
on additional Liens set forth in Section 8.01 of the Credit
Agreement, and (c) the prohibition on additional Debt set forth in Section
8.03 of the Credit Agreement (the violations referenced in subclauses
(a) through (c) of this Section 1
are collectively, the Covenant Violations). Company has
requested that Lenders waive any Default or Event of Default resulting from the Covenant
Violations. Company has also requested that certain provisions of the Loan Agreement be
amended.
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|Company
has also advised Lenders that it has formed a Subsidiary (Merger
Sub) into which Winemiller Communications, Inc., a Pennsylvania
corporation, was merged resulting in a Wholly-Owned Subsidiary of the Company (the
Winemiller Acquisition).
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August 15, 2003Page 2

|Section 2.     Waiver.  By execution of this Waiver and Amendment,  each Lender  executing this Waiver and Amendment  (collectively,
"Consenting Lenders"), subject to the terms and conditions included herein, hereby:
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | A. | Waives the existence of the Covenant Violations and the Default or Event of
               Default created thereby;
| | -- | -------------------------------------------------------------------------------------------------------------------

| | B. | Agrees that the Debt represented by the LC Guaranty shall be excluded from the
               calculations of the financial covenants set forth in Section
               8.11 until 12:00 noon (Dallas, Texas time) on December 30, 2003;
| | -- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | C. | In connection with the Winemiller Acquisition, the requirement set forth in
               Section (i) of the definition of Permitted
               Acquisition that the Administrative Agent receive pro forma
               financial statements of the Companies is hereby waived.
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | D. | In connection with the Winemiller Acquisition, the Default or Event of Default
               created by Companys failure to satisfy the requirement set forth in
               Section 7.12 of the Loan Agreement that upon the formation
               of Merger Sub the Company must deliver articles of incorporation, bylaws,
               resolutions and such opinions as required by Administrative Agent, and cause
               Merger Sub to execute a Guaranty, Guarantor Security Agreement and Pledge
               Agreement is hereby waived.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|Section 3.     Amendments to the Loan Agreement.  By execution  of this Waiver and  Amendment,  the parties  hereto have agreed to
amend the Loan Agreement as follows:
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------

A.      
          Section 1.01 is hereby amended to amend the definition of
          Permitted Acquisition to add the following
          provisions at the end of such definition:

| | (s)       
               the aggregate cash and assumption of Debt consideration of such Acquisition does
               not exceed three (3) times the EBITDA of the Target, subject to adjustments
               acceptable to the Administrative Agent where less than all of the business,
               assets or stock of the Target is acquired, for the four (4) fiscal quarters
               ending on the most recently ended fiscal period prior to the date of such
               Acquisition; and
| | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | (t)       
               less than (i) ten percent (10%) of the assets of the Target are located outside
               the United States and (ii) ten percent (10%) of the Targets revenues are
               derived from operations outside of the United States.
| | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | Provided
however, that, notwithstanding the foregoing, at any time in which Borrowers
Total Net Funded Debt to Adjusted EBITDA is greater than 3.0 to 1.0, Borrower may not make
any Acquisitions other than Permitted Acquisitions in which the total consideration for
all such Acquisitions is less than $2,000,000 in the aggregate in any twelve (12) month
period.
| | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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August 15, 2003Page 3

B.      
          Section 1.01 is hereby amended to delete the grid included
          in the definition of Applicable Margin in its
          entirety and replace such grid with the following:

|Total Net Funded Debt to Adjusted
EBITDA Ratio                             
 
Less than 2.0 to 1.0                     
 
Less than 2.50 to 1.0 but  greater  than
or equal to 2.00 to 1.0                  
 
Less than 3.00 to 1.0 but  greater  than
or equal to 2.50 to 1.0                  
 
Less than 3.50 to 1.0 but  greater  than
or equal to 3.00 to 1.0
 
Greater than or equal to 3.50 to 1.0 | Applicable Margin: Base
RateBorrowings           
 
0.50%                     
 
1.00%                     
 
1.50%                     
 2.00%                     

2.50% | Applicable Margin:      
Eurodollar Rate         Borrowings              
 
2.00%                   
 
2.50%                   
 
3.00%                   
 3.50%

 
4.00% | Applicable
Margin:Commitment Fee
 
0.375%
 
0.50%
 
0.50%
0.625%

 
0.625%
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------

C.      
          Section 8.11(a) is hereby deleted in its entirety and
          replaced with the following:

| | (a)       
               Total Net Funded Debt to Adjusted EBITDA. Borrower will not permit the
               Total Net Funded Debt to AdjustedEBITDA Ratio, determined as of the last
               day of each fiscal quarter of the Companies and for the four (4) fiscal quarter
               period then ending, to exceed the ratio set forth opposite such period below:
| | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | Period                                                             
 
July 1, 2003 through September 29, 2003                            
 
September 30, 2003 through December 30, 2003                       
 
December 31, 2003 through June 29, 2004                            
 
June 30, 2004 through December 30, 2004                            
 
December 31, 2004 and thereafter | Ratio
 
4.50 to 1.0
 
4.10 to 1.0
 
3.90 to 1.0
 
3.75 to 1.0
 
3.50 to 1.0
| | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------

| | Provided
however, that if, as of the last date of any reporting period listed above,
Borrowers Total Net Funded Debt to Adjusted EBITDA Ratio is equal to or less than
3.0 to 1.0, then Borrower will not permit the Total Net Funded Debt to Adjusted EBITDA
Ratio, determined as of the last day of each fiscal quarter of the Companies and for the
four (4) fiscal quarter period then ending, commencing with the first fiscal quarter
immediately following the quarter in which Total Net Funded Debt to Adjusted EBITDA Ratio
was equal to or less than 3.0 to 1.0, to exceed the ratio set forth opposite such period
below:
| | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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August 15, 2003Page 4

| | Period                                                             
 
July 1, 2003 through June 30, 2004                                 
 
July 1, 2004 and thereafter | Ratio
 
3.25 to 1.0
 
3.00 to 1.0
| | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------

|Section 4.     Representations.The Company and each Guarantor hereby represent and warrant to Administrative Agent
and the Lenders that: (i) the representations and warranties contained in the Loan
Agreement and the other Loan Documents are true and correct on and as of the date hereof
as though made on and as of such date; (ii) after giving effect to this letter and the
waiver granted herein, neither the Company nor any of the Guarantors is in default in
the due performance of any covenant or agreement contained in the Loan Agreement or any
other Loan Document; and (iii) after giving effect to this letter and the waiver granted
herein, no Default has occurred and is continuing.
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|Section 5.     Confirmations.Each of the Company and the Guarantors ratifies and confirms that the Loan Agreement,
the Guaranties, the Borrower Security Agreement, the Guarantor Security Agreements, the
Pledge Agreements, and the other Loan Documents are and remain in full force and effect in
accordance with their respective terms, as amended hereby. In addition, each of the
Guarantors acknowledges, agrees, accepts and consents to the terms and provisions hereof
and each other Loan Document as amended hereby. Except as expressly provided herein, this
letter does not constitute a waiver or modification of any of the terms or provisions set
forth in the Loan Agreement or any other Loan Document and shall not impair any right that
Administrative Agent or the Lenders may now or hereafter have under or in connection with
the Loan Agreement or any other Loan Document.
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|Section 6.     No Impairment.The waivers hereby granted by Administrative Agent and the Required Lenders (i) does
not impair Administrative Agents or any of the Lenders rights to insist upon
strict compliance with the Loan Agreement or the other Loan Documents, and (ii) does not
extend to any other Loan Document. The Loan Documents, as waived hereby continue to bind
and inure to Administrative Agent, the Lenders, Company, the Guarantors, and their
respective successors and permitted assigns.
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|Section 7.      Conditions
Precedent. The effectiveness of this letter and waiver agreement is subject to the
conditions precedent that the Administrative Agent shall have received all of the
following, in form and substance satisfactory to the Administrative Agent:
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | A. | No Default. No Default other than the Covenant Violation shall have
               occurred and be continuing under the Loan Agreement.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------

| | B. | Representations and Warranties. All of the representations and warranties
               contained in Article VII of the Loan Agreement hereof and in each of the other
               Loan Documents shall be true and correct on and as of the date hereof with the
               same force and effect as if such representations and warranties had been made on
               and as of such date, except to the extent that such representations and
               warranties speak to a specific date or the facts on which such representations
               and warranties are based have been changed by transactions contemplated by the
               Loan Documents.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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August 15, 2003Page 5

| | C. | Fees and Expenses. Payment (i) to each Lender executing a counterpart of
               this Agreement of a fee equal to its Commitment on the date hereof, multiplied
               by 20 basis points and (ii) of all fees and expenses of counsel for
               Administrative Agent in connection with the preparation and negotiation of this
               Amendment and Waiver.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | D. | Updating Certificate. A Certificate signed by the Chief Executive or
               Chief Financial Officer or Vice President-Treasurer of Company and the
               Guarantors setting forth any changes to the Schedules to the Loan Agreement
               since the date of execution of the Loan Agreement.
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | E. | Permitted Acquisition Certificate. A duly executed and completed
               Permitted Acquisition Certificate substantially in the form of Exhibit
               I to the Loan Agreement with appropriate revisions to give effect
               to the waivers set forth herein.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | F. | Collateral Documents. Guaranties, Guarantor Security Agreements, and
               Pledge Agreements, executed and delivered by Winemiller Communications, Inc. and
               the Company, blank stock powers, and other documents reasonably requested by
               Administrative Agent, including Articles of Incorporation duly certified by the
               Secretary of State of California, by-laws, and board of directors resolutions of
               Winemiller Communications, Inc.
| | -- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|Section 8.     Counterparts.This agreement, when countersigned by Company, Guarantors, Administrative Agent, and
Required Lenders shall be a Loan Document as defined and referred to in
the Loan Agreement and the other Loan Documents and may be signed in any number of
counterparts, each of which shall be deemed an original, but all of which together shall
constitute one and the same instrument. This agreement shall be governed by and construed
in accordance with the laws of the State of Texas.
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|Section 9.     Entire
Agreement.THIS AGREEMENT, THE LOAN AGREEMENT, THE NOTES AND THE OTHER LOAN DOCUMENTS
EMBODY THE FINAL, ENTIRE AGREEMENT AMONG THE PARTIES HERETO AND SUPERSEDE ANY AND ALL
PRIOR COMMITMENTS, AGREEMENTS, REPRESENTATIONS, AND UNDERSTANDINGS, WHETHER WRITTEN OR
ORAL, RELATING TO THE SUBJECT MATTER HEREOF AND MAY NOT BE CONTRADICTED OR VARIED BY
EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT ORAL AGREEMENTS OR DISCUSSIONS OF THE
PARTIES HERETO. THERE ARE NO ORAL AGREEMENTS AMONG THE PARTIES HERETO.
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|[REMAINDER OF PAGE
INTENTIONALLY BLANK.SIGNATURE
PAGES FOLLOW.]
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|If the foregoing is agreeable to you,
please signify your acceptance of the terms and conditions set forth herein by placing
your signature in the space provided below.
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | Very truly yours,PRIME MEDICAL SERVICES, INC.,
   as Company
By: _______________________________ 
       Name:  __________________________ 
       Title:   __________________________
| | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|Signature Page to Amendment
and Waiver Letter
|---------------------------------------------



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| | GUARANTORS:PROSTATHERAPIES, INC.
LITHOTRIPTORS, INC.
FASTSTART, INC.
NATIONAL LITHOTRIPTORS ASSOCIATION
R.R. LITHO, INC.
OHIO LITHO, INC.
MEDTECH INVESTMENT, INC.
PRIME MEDICAL OPERATING, INC.
PRIME MANAGEMENT, INC.
PRIME LITHOTRIPTER OPERATIONS, INC.
PRIME DIAGNOSTIC SERVICES, INC.
PRIME LITHOTRIPSY SERVICES, INC.
PRIME DIAGNOSTIC CORP. OF FLORIDA
SUN MEDICAL TECHNOLOGIES, INC.
PRIME PRACTICE MANAGEMENT, INC.
PRIME SERVICE CENTER, INC.
         formerly known as  Prime Cardiac Rehabilitation
         Services, Inc.ALABAMA RENAL STONE INSTITUTE, INC.
PRIME KIDNEY STONE TREATMENT, INC.
SUN ACQUISITION, INC.
EXECUTIVE MEDICAL ENTERPRISES, INC.
PRIME RVC, INC.
AK ASSOCIATES, L.L.C.
PRIME MEDICAL MANUFACTURING, LLC
PRIME REFRACTIVE MANAGEMENT, L.L.C.
ALUMINUM BODY CORPORATION
WINEMILLER COMMUNICATIONS, INC.
   each as a Guarantor

By:  _____________________________________              
      Name: ________________________________              
      Title:   ________________________________              PRIME MEDICAL MANAGEMENT, L.P.
  as a Guarantor
By:  PRIME MEDICAL OPERATING, INC.,
       a Delaware corporation, its General Partner
     By:   __________________________________              
             Name:  _____________________________              
             Title: ______________________________
| | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|Signature Page to Amendment
and Waiver Letter
|---------------------------------------------



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AGREED AND ACCEPTED as of the
date first stated above.

| | BANK OF AMERICA, N.A., as Administrative Agent
By:       _____________________________       
          Anne M. Zeschke
          Vice President
| | ------------------------------------------------------------------------------------------------------------------------------------------------

|Signature Page to
Amendment and Waiver Letter
|---------------------------------------------



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| | BANK OF AMERICA, N.A., as a Lender
By:       _____________________________
          Daniel H. Penkar
          Senior Vice President
| | -------------------------------------------------------------------------------------------------------------------------------------

|Signature Page to Amendment
and Waiver Letter
|---------------------------------------------



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| | BANK ONE, NA, with its main office in Chicago, Illinoisas a Lender
By:   __________________________________                    
       Name: _____________________________                                           
       Title:   _____________________________
| | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|Signature Page to Amendment
and Waiver Letter
|---------------------------------------------



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| | LASALLE BANK, NATIONAL ASSOCIATION,as a Lender
By:   __________________________________                    
       Name: _____________________________                                           
       Title:   _____________________________
| | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|Signature Page to Amendment
and Waiver Letter
|---------------------------------------------



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| | COMERICA BANK,as a Lender
By:   __________________________________                    
       Name: _____________________________                                           
       Title:   _____________________________
| | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|Signature Page to Amendment
and Waiver Letter
|---------------------------------------------