California Dmv 2024 Sticker Color. The california dmv began the new clean air vehicle (cav) decal program on january 1, 2019 for qualifying vehicles that have never received a cav decal. Submit a completed application for replacement plates, stickers, documents (reg 156) and the fee to the address on the.

This provides an access period of. The program allows a vehicle that meets specified emissions standards to display cav decals and to use hov (carpool).