Every contract to which Jasper County is a party shall contain a provision requiring the contractor and his or her subcontractors not to discriminate against any employee or applicant for employment, to be employed in the performance of such contract, with respect to his or her hire, tenure, terms, conditions, or privileges of employment or any matter directly or indirectly related to employment, because of his or her race, religion, color, sex, handicap, national origin, or ancestry. Breach of this covenant may be regarded as a material breach of the contract. [Code 1988 § 91.01.]