Okla. Stat. tit. 51, § 51-258: Governmental authority

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.