All contracts of the State of Oklahoma for the construction of public works shall contain, and be construed as containing, a clause providing that discrimination by reason of race, creed or color will not be practiced by the contractor in employment of those who furnish labor or materials, nor will it be permitted by the department or agency procuring the construction of the public work for which the contract is executed.
Laws 1968, c. 277, § 1, emerg. eff. April 30, 1968.