Okla. Stat. tit. 74, § 74-913.1a: Nonclassified optional education personnel - Service

credit.

A member may receive credit in the Oklahoma Public Employees

Retirement System for those years of service accumulated by the

member as nonclassified optional personnel as defined by paragraph 4

of Section 17-101 of Title 70 of the Oklahoma Statutes if the member

is not receiving or eligible to receive retirement credit or

benefits from said service in any public retirement system. To

receive the service credit, the member shall pay the amount

determined by the Board pursuant to Section 913.5 of this title.