Okla. Stat. tit. 47, § 47-11-806.1: Reduced speed limit at certain times in school zone

Where any portion of a road, street, or highway is a properly

marked school zone, as indicated with appropriate warning signs

placed in accordance with the latest edition of the Manual on

Uniform Traffic Control Devices, and a reduced speed limit as

properly posted, shall be in effect during certain times due to the

presence or potential presence of school children, no person shall

drive any vehicle upon that portion of the highway which is the

school zone in excess of the reduced speed limit so posted when the

reduced speed limit is in effect. Violation of the posted reduced

speed limit in the school zone shall result in the doubling of the

appropriate fine.