Okla. Stat. tit. 47, § 1-140
Every person, including a commercial operator or driver, as defined in Section 47-1-108 of this title, who operates, drives or is in actual physical control of a motor vehicle or who is exercising control over or steering a vehicle being towed by a motor vehicle.
Laws 1961, HB 556, p. 318, § 1-140, eff. September 1, 1961; Amended by Laws 1995, HB 1830, c. 23, § 3, eff. November 1, 1995.