Hazardous Duty Members and Post-Hazardous Duty Members who are employed by the Department of Corrections shall pay the higher contribution rate set forth in Title 74 O. S. Section 919.1(1)(c) and (d) for a maximum of twenty (20) full years. If the Hazardous Duty Members and Post-Hazardous Duty Members remain employed by the Department of Corrections after twenty (20) full years of payment of the higher contribution rate, the required employee contribution rate shall be as provided in 919.1 (1) (a) and (b).
Okla. Admin. Code § 590:10-8-4