Okla. Admin. Code § 590:35-13-7
Subject to the provisions of Section 590:35-13-1 herein, a Participant (or Beneficiary, where applicable) may elect within the period and on the forms prescribed by the Plan Administrator, to receive the balance of his or her Account in the form of:
Added at 15 Ok Reg 793, eff 11-12-97 (emergency)
Added at 15 Ok Reg 3282, eff 7-13-98
Amended at 28 Ok Reg 678, eff 5-12-11