Okla. Stat. tit. 19, § 19-451: Purchase of boat for official business - Mileage

The board of county commissioners of any county in this state

having more than two hundred fifty (250) miles of lake shore line

within such county, are hereby authorized to purchase, maintain, and

to provide for the operation of, for the official business of the

county and its several offices, a boat and motive power therefor,

either inboard or outboard. No mileage shall be charged to the

county for travel in such boat and all mileage collected by any

officer, from any other source, shall be paid by him into the county

and shall be credited to the fund from which claims for the

operation of such boat shall be paid. The board shall establish

such rules and regulations regarding the use of such boat as to

prevent its use for other than official business.