<DOCUMENT>
<TYPE>EX-32.1
<SEQUENCE>5
<FILENAME>ex32-1.txt
<DESCRIPTION>EXHIBIT 32.2
<TEXT>

EXHIBIT 32.1


              SECTION 1350 CERTIFICATION OF CHIEF EXECUTIVE OFFICER


In  connection with the Quarterly Report of P.A.M. Transportation Services, Inc.
(the "Company") on Form 10-Q for the period ending June 30, 2005, (the "Report")
filed  with  the  Securities  and  Exchange  Commission,  I,  Robert  W. Weaver,
President  and  Chief  Executive Officer of the Company, certify, pursuant to 18
U.S.C.  Section  1350,  as adopted pursuant to Section 906 of the Sarbanes-Oxley
Act of 2002, that to the best of my knowledge:

(1)  The  Report  fully complies with the requirements of section 13(a) or 15(d)
     of the Securities Exchange Act of 1934; and

(2)  The  information  contained  in the Report fairly presents, in all material
     respects, the financial condition and results of operations of the Company.


Date:  August 3, 2005

                                   By:  /s/ Robert W. Weaver
                                   -----------------------------------------
                                   Robert W. Weaver
                                   President and Chief Executive Officer
                                  (chief executive officer)

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</TEXT>
</DOCUMENT>
