Okla. Stat. tit. 59, § 1013
The State Commissioner of Health shall, upon proper application and payment of fee, register as plumber's apprentice, and shall issue a certificate of registration to, a person or persons who furnish proof satisfactory to the Commissioner that he, she, or they are sixteen (16) years of age or older and are enrolled in a recognized school or training course for plumber apprentices, or have arranged for employment as a plumber's apprentice with a licensed plumbing contractor. The certificate of an apprentice shall expire at the end of one (1) year from date of issuance, at which time the Commissioner may issue a renewal certificate upon payment of the renewal fee.
Laws 1955, p. 369, § 13; Amended by Laws 1980, c. 1, § 4, eff. July 1, 1980; Amended by Laws 1999, SB 379, c. 405, § 4, emerg. eff. June 10, 1999 (superseded document available).