* Clean Air Vehicles with valid CAV decals - These include:
* Plug-in hybrid electric vehicles (PHEVs)
* Battery electric vehicles (BEVs)
* Hydrogen fuel cell vehicles (HFCVs)
* Natural gas vehicles (NGVs)
* Propane autogas vehicles (PGVs)
* Motorcycles - Motorcyclists may use FasTrak lanes but are not required to have an account or pay tolls.
* Emergency vehicles - Emergency vehicles such as fire trucks, police cars, and ambulances are exempt from paying tolls.
* Government vehicles - Government vehicles with official government license plates are exempt from paying tolls.
* Public transportation vehicles - Public transportation vehicles such as buses and trains are exempt from paying tolls.
* Military vehicles - Military vehicles with official military license plates are exempt from paying tolls.
* Heavy vehicles - Heavy vehicles with three or more axles are not subject to tolls on most Bay Area toll bridges (with the exception of the Golden Gate Bridge).
