Any former member of OPERS who elects to transport service from OPERS must reinstate such service in OPERS by paying all contributions and interest due prior to or concurrently with the final election to transport. If the election is terminated or voided for any reason, the reinstatement of the withdrawal shall be also voided and the repayment remitted to OPERS shall be returned to the former member, unless he or she is otherwise eligible for repayment of the withdrawal.
Okla. Admin. Code § 590:10-11-5