Carpools, vanpools, motorcycles and eligible clean air vehicles (CAVs) need a FasTrak Flex toll tag to drive toll free in the I-580, I-680 Contra Costa and SR-237 express lanes. FasTrak Flex toll tags work just like a regular FasTrak toll tag at all other FasTrak toll facilities, including the eight Bay Area toll bridges and the parking garages at the San Francisco International Airport. If you do not use express lanes as a carpool, vanpool, motorcycle or eligible CAV, a Standard FasTrak toll tag will serve all your needs. The vast majority of FasTrak users only need a Standard FasTrak toll tag.
Note: Eligible CAVs traveling the SR-237 express lanes should use a FasTrak CAV toll tag. The FasTrak CAV toll tag is similar to FasTrak Flex but is required for eligible CAVs who wish to receive the 50% discount when traveling as a single-occupant vehicle in the SR-237 express lanes. The FasTrak CAV toll tag is the only one that will communicate the correct discount to roadside toll equipment.
Topic: Toll Tags