HSC § 25250.51

(a) On and after January 1, 2014, any motor vehicle brake friction materials containing any of the following constituents in an amount that exceeds the following concentrations shall not be sold in this state:

(1) Cadmium and its compounds: 0.01 percent by weight.

(2) Chromium (VI)-salts: 0.1 percent by weight.

(3) Lead and its compounds: 0.1 percent by weight.

(4) Mercury and its compounds: 0.1 percent by weight.

(5) Asbestiform fibers: 0.1 percent by weight.

(b) Motor vehicle manufacturers and distributors, wholesalers, or retailers of replacement brake friction materials may continue to sell or offer for sale brake friction materials not certified as compliant with subdivision (a) solely for the purpose of depletion of inventories until December 31, 2023.

(c) Notwithstanding subdivision (b), motor vehicle dealers may continue to sell or offer for sale brake friction material not certified as compliant with subdivision (a) if the brake friction material was installed on a vehicle before the vehicle was acquired by the dealer.