Okla. Stat. tit. 47, § 47-2-309.8: Service credit

A. Any state employee who is employed in a commissioned officer

position of the Oklahoma Highway Patrol Division, the Oklahoma State

Bureau of Investigation, the Oklahoma Bureau of Narcotics and

Dangerous Drugs Control, the Alcoholic Beverage Laws Enforcement

Commission, a Parks Ranger of the Tourism and Recreation Department,

and a Pharmacy Inspector of the Pharmacy Board shall be eligible for

service credit for employment prior to July 1, 1993, if the employee

was in a commissioned officer position in the former Oklahoma

Capitol Patrol Division, the former Mansion Security, and the former

Training Center Security of the Department of Public Safety and the

employee was a full-time, active employee eligible for all state

employee benefits.

B. An eligible member of the System shall receive credit for

all prior service as provided in subsection A of this section,

provided the member is not receiving or eligible to receive

retirement credit or benefits for such service in any other public

retirement system. Service credit received pursuant to this section

shall be used in determining the years of service for retirement and

vesting purposes.

C. To receive credit for such service, an eligible member, as

provided in this section, who became a member of the System prior to

July 1, 1993, shall make application to the Board in writing for

such service prior to July 1, 2002.