Okla. Stat. tit. 19 § 866.3
Any county of the state which is hereby authorized to avail itself of the provisions of this act and to form with a city located therein a cooperative planning commission may combine a portion of its funds with a portion of the funds of such city, to be expended for the purposes as herein set forth. Each such county and city is hereby authorized to appropriate funds in the amounts necessary to carry out the purpose of this act. The commission, upon approval of the council or board, as the case may be, is hereby authorized to contract for, receive, and utilize any grants or other financial assistance from the federal or state government or from any other source, public or private, in furtherance of its functions and may incur necessary expenses in obtaining said grants and/or financial assistance within the limits of its appropriations.
Okla. Stat. tit. 19, § 866.3