Okla. Stat. tit. 61 § 12
All plans and specifications for the erection of public buildings subject to Section 11 of this title shall be submitted prior to bidding and awarding of contract to the State Fire Marshal or other authority having jurisdiction. Such plans and specifications shall be checked for compliance with Section 11 of this title, and no construction contract for any public building shall be awarded unless and until said plans and specifications are approved as being in compliance with Section 11 of this title by the appropriate governmental agency. If public buildings are to be financed by state funds, the Office of Management and Enterprise Services shall approve said plans and specifications. In the case of public buildings to be financed by county funds or funds controlled by some other political subdivision of the state, the agency whose approval is required shall be the governing body of such subdivision.
Okla. Stat. tit. 61, § 12