Okla. Stat. tit. 51, § 258

Notwithstanding any provision of this act, a governmental entity has no less authority to adopt or apply laws and regulations in a nondiscriminatory manner concerning zoning, land use planning, traffic management, urban nuisance, or historic preservation, than the authority of the governmental entity that existed under the law prior to the passage of this act. This section does not affect the authority of a governmental entity to adopt or apply laws and regulations as that authority has been interpreted by any court.