Okla. Stat. tit. 59, § 1629
The Oklahoma State Labor Department shall issue to each applicant successfully meeting the qualifications requirements provided in Section 5 of this act a certificate stating that the applicant has met the certification requirements. The certificate shall be valid for one (1) year unless revoked pursuant to Section 8 of this act.
Laws 1978, SB 242, c. 104, § 6, eff. October 1, 1978.