Okla. Stat. tit. 70, § 3905

Institutions, agencies, and boards in The Oklahoma State System of Higher Education may withhold from the compensation payable for the employee's services, with the consent of the employee, amounts necessary for participation in the Oklahoma Teachers' Retirement System, hospital and medical benefits, accident, health and life insurance, annuities, United States Savings Bonds and other programs authorized by such institutions, agencies, and boards; and it shall be the duty of the Director of the Office of Management and Enterprise Services and the State Treasurer to process amounts so withheld in accordance with existing laws.