Okla. Stat. tit. 63 § 1-216
The city-county board of health in any county wherein a city-county health department has been created as hereinbefore provided shall, subject to the approval of the board of county commissioners of the county and the governing body of the city which created and operates such city-county health department, have authority to enter into agreements with other counties, cities, towns, school districts, the State Health Department, the Department of Environmental Quality, or any state agency or institution, or philanthropic, voluntary or charitable organization, for the operation of the health department and the administering of health or environmental, as appropriate, services of such county, city, town, school district, agency or institution by such city-county health department, and may provide in the agreement for contribution by such participating body to the financial support of the city-county health department.
Okla. Stat. tit. 63, § 1-216