Okla. Stat. tit. 17, § 17-316: Ordinance or regulations in conflict with act prohibited

No county, incorporated or nonincorporated municipality, state

agency or political subdivision shall enact ordinances or promulgate

any rules, ordinances, regulations or requirements governing any

aspect of petroleum storage tank system regulation within the State

of Oklahoma that shall be in conflict with any of the provisions of

the Oklahoma Petroleum Storage Tank Consolidation Act, or any rules

promulgated or any orders issued by the Corporation Commission

pursuant to the provisions of the Oklahoma Petroleum Storage Tank

Consolidation Act.