Okla. Stat. tit. 74, § 85.45i

No later than December 31, 1994, each municipality with a population of three hundred thousand (300,000) or more according to the latest Federal Decennial Census shall conduct a study to determine the disparity, if any, in minority business contracts awarded by such municipality, and to determine the feasibility of the establishment of a percentage preference bid program that provides for a minimum of five percent (5%) of the funds expended on municipal contracts to be awarded to minority business enterprises as certified by the Oklahoma State Purchasing Director under the Oklahoma Minority Business Enterprise Assistance Act, Sections 85.45 through 85.45h of Title 74 of the Oklahoma Statutes.