Okla. Stat. tit. 82, § 1604
To allow participation in the program, the Board, boards of county commissioners and municipal governing bodies are authorized to establish floodplain boards for their respective area of jurisdiction which may adopt, administer and enforce floodplain management regulations, for the purpose of:
4. The regulation of the use of land in the floodplain.
The regulations shall be based on adequate technical data and competent engineering advice and shall be consistent with local and regional comprehensive planning.
The regulations shall be approved by the Oklahoma Water Resources Board, the county or the municipality, as the case may be, by appropriate order, resolution or ordinance.
Laws 1980, HB 1094, c. 179, § 4, emerg. eff. May 13, 1980.