Okla. Stat. tit. 19 § 162
Subject to the approval of the county excise board, every county officer shall appoint such regular and special deputies as are essential to the performance of the duties of the office in an efficient manner and shall fix their salaries and compensation. In order to provide for parity among and between county offices, every county which has established a county budget board pursuant to the County Budget Act, Sections 1401 through 1421 of this title, may, upon majority vote of the members of the budget board, institute equivalent employee job descriptions and related salary levels for all full-time employment positions for uniform application by each county officer. It shall be the responsibility of the board of county commissioners to cause such job descriptions and salary levels to be established. The county officer shall annually make request for appropriation for payment of salaries, traveling expenses, supplies and equipment and other needs for performing his official duties. The board of county commissioners and the county excise board shall annually appropriate amounts that will enable a county officer to hire and keep capable deputies, provide their instruction, provide sufficient supplies and equipment for the county officer and his deputies, provide reimbursement for traveling expenses for the county officer or deputies whose assignments require expenditures therefor, or provide a monthly travel allowance for the county officer in lieu of reimbursed expenditures for travel within this state.
Okla. Stat. tit. 19, § 162