Okla. Admin. Code § 175:10-9-33
(a) After one (1) year and up to five (5) years from date of the completion of a course of training, any applicant who fails to register for the examination or who fails to apply for a license after notice to apply, shall be required to show proof of no less than the following review hours in an approved Oklahoma cosmetology or barber school before being eligible to sit for the practical and written examination (Note: Hours may be measured in credits and ratio is as recognized by the United States Department of Education as recognized by a national accreditation entity recognized by the United States Department of Education):
Amended at 16 Ok Reg 3293, eff 7-26-99
Amended at 21 Ok Reg 1002, eff 7-1-04
Amended at 31 Ok Reg 1107, eff 11-1-14
Amended at 36 Ok Reg 1437, eff 8-25-19
Amended at 39 Ok Reg 976, eff 9-11-22