Approval in a week. How long until you get stickers mailed to you?
If you drive a vehicle that meets certain emissions standards and other criteria, you may be able to get Clean Air Vehicle (CAV) decals and a CAV decal identification (ID) card, which allow single occupancy use of High Occupancy Vehicle (HOV, or carpool) lanes.
www.dmv.ca.gov
I've found that it's better to do a Google search for what you need from DMV, like finding the
FasTrak phone number or the Clean Air Vehicle decal info, rather than try to navigate their website. It’s one of the worst sites I’ve ever used.