Okla. Stat. tit. 19, § 865.52

Each county of the state which is hereby authorized to avail itself of the provisions of this act is hereby authorized to set up a planning commission by resolution of the board and by a vote of the majority of the people voting at an election called for such purpose in said county and to appropriate funds in the amounts necessary to carry out the purpose of this act. The commission, upon approval of the board, 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.