Okla. Stat. tit. 74, § 1314

Except as provided in Section 483 of Title 40 of the Oklahoma Statutes, the provisions of the State and Education Employees Group Insurance Act, Section 1301 et seq. of this title, shall not apply to the employees and officers of The Oklahoma State System of Higher Education nor to the Commissioners of the State Department of Transportation nor to any member of an administrative board or commission of any agency, board, authority or commission of the State of Oklahoma unless such member is a full-time salaried employee; provided, however, that any state system or institution of higher education may elect to come under the provisions of said act.