Okla. Stat. tit. 47, § 1-124
The numbers, and letters if any, on a vehicle designated by Service Oklahoma for the purpose of identifying the vehicle.
Laws 1961, HB 556, p. 317, § 1-124, eff. September 1, 1961; Amended by Laws 2022, HB 3419, c. 282, § 25, emerg. eff. May 19, 2022 (superseded document available).