Okla. Stat. tit. 47, § 47-156.3: Purchase of motor vehicles necessary for performance of

official duties permitted - Color - Marking - Size of lettering.

A. This act, Section 151 et seq. of this title, shall not apply

to and shall not be so construed as prohibiting the purchase and use

of trucks or pickups by state agencies when the trucks or pickups

are necessary for the performance of official duties of the state

agency.

B. Trucks and pickups owned and operated by the Department of

Transportation shall be painted either yellow or white, and except

as otherwise provided by law, shall be plainly marked with the words

"State of Oklahoma" followed by the name of the department.

C. The provisions of this section shall not be construed to

permit the purchase of any motor vehicle of ten thousand (10,000)

pounds or less gross vehicle weight.

D. All acquisitions of any motor vehicle of ten thousand

(10,000) pounds or less gross vehicle weight shall be approved by

the Director of the Office of Management and Enterprise Services as

provided for in Section 78a of Title 74 of the Oklahoma Statutes.