Okla. Stat. tit. 15, § 955
No insurer shall specify the use of non-original equipment manufacturer aftermarket crash parts in the repair of an insured's motor vehicle, nor shall a repair facility or installer use non-original equipment manufacturer aftermarket crash parts to repair a vehicle, unless the consumer is advised in writing. In all instances where non-original equipment manufacturer aftermarket crash parts are intended for use by an insurer:
Laws 1991, HB 1466, c. 161, § 5, eff. September 1, 1991.