EXHIBIT 31.4

RULE 13a-14(a) CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

I, LANCE K. STEWART, Chief Financial Officer, certify that:

(1) I have reviewed this Amendment No. 1 to the Annual Report on Form 10-K for the fiscal year ended December 31, 2023 of P.A.M. Transportation Services, Inc., a Delaware corporation; and

(2) Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.

Date: April 29, 2024

/s/ Lance K. Stewart         

Lance K. Stewart

Vice President-Finance, Chief Financial

Officer and Treasurer

(principal financial and accounting officer)