Okla. Stat. tit. 59 § 1000.29
Nothing in the Oklahoma Uniform Building Code Commission Act shall prohibit state agencies or political subdivisions of the state from having full authority to provide for the enactment of codes and rules in such form as they may determine and prescribe; provided, that such code, ordinance, bylaw or rule shall contain higher standards and requirements than the codes adopted pursuant to the Oklahoma Uniform Building Code Commission Act, or any rule adopted or prescribed by the Oklahoma Uniform Building Code Commission through authority of Oklahoma Uniform Building Code Commission Act, nor shall it prevent or take away from any state agencies or political subdivisions of the state the authority to amend such adopted codes to make changes necessary to accommodate local conditions; provided, such changes shall be approved by the Commission.
Okla. Stat. tit. 59, § 1000.29