Okla. Stat. tit. 47, § 12-428
School buses converted for purposes other than transporting pupils to or from school shall be painted a color other than National School Bus Yellow.
Laws 1973, SB 217, c. 112, § 6; Amended by Laws 1974, HB 1654, c. 57, § 1; Amended by Laws 1978, c. 262, § 2, eff. October 1, 1978; Amended by Laws 2003, SB 633, c. 411, § 18, eff. November 1, 2003 (superseded document available); Renumbered from 47 O.S. § 12-102 by Laws 2003, SB 633, c. 411, § 85, eff. November 1, 2003.