California Code, Business and Professions Code - BPC § 9875.1

(a) The written estimate shall clearly identify each such part with the name of its nonoriginal equipment manufacturer or distributor.

(b) A disclosure document containing the following information in 10-point type or larger type shall be attached to the insured's copy of the estimate:  “This estimate has been prepared based on the use of crash parts supplied by a source other than the manufacturer of your motor vehicle.  Any warranties applicable to these replacement parts are provided by the manufacturer or distributor of the parts, rather than by the original manufacturer of your vehicle.”