Okla. Admin. Code § 158:40-7-6
(a) Applicants for a refinery electrical journeyman examination must:
(3) have a verifiable license in the unlimited electrical classification issued by a jurisdiction outside of the State of Oklahoma. The license must be:
Added at 23 Ok Reg 1148, eff 3-29-06 (emergency)
Added at 24 Ok Reg 1212, eff 5-25-07
Amended at 31 Ok Reg 907, eff 9-12-14