Okla. Stat. tit. 47, § 12-420
Sections 12-416 through 12-420 of this title may be used in any civil proceeding in this state and the use or nonuse of seat belts shall be submitted into evidence in any civil suit in Oklahoma unless the plaintiff in such suit is a child under sixteen (16) years of age.
Laws 1985, HB 1328, c. 123, § 5, eff. February 1, 1987; Amended by Laws 2005, HB 1246, c. 50, § 13, eff. November 1, 2005 (superseded document available); Amended by Laws 2009, HB 1603, c. 228, § 27, eff. November 1, 2009 (repealed by Laws 2013, 1st Extr. Sess., HB 1015, c. 11, § 1); Amended by Laws 2013, 1st Extr. Sess., HB 1015, c. 11, § 4, as amended by Laws 2013, 1st Extr. Sess., HB 1015, c. 11, § 5 (superseded document available).