FasTrak Toll Tags
Drivers must have a FasTrak toll tag mounted to the vehicle's windshield to pay the lowest tolls at Bay Area bridges and express lanes.
A FasTrak Flex toll tag is required for carpools, motorcycles and eligible clean air vehicles to travel toll free in the I-580 express lanes. In the 101 San Mateo, 101/SR-85 Santa Clara, I-680 Contra Costa, I-880 and SR-237 express lanes, a FasTrak Flex toll tag is required for carpools and motorcycles to receive toll discounts.
FasTrak Flex toll tags work just like FasTrak Standard toll tags but have a three-position switch that can be adjusted to signal whether you are traveling as a carpool or alone. It is required for most Bay Area express lanes.
FasTrak CAV is a special toll tag—issued only to eligible clean air vehicles (CAVs)—that qualifies the vehicle for free or reduced tolls.
The FasTrak CAV toll tag works at all toll bridges and in all Bay Area express lanes. It can also be used to pay for parking at San Francisco International Airport.
The FasTrak CAV toll tag has a three-position switch to signal whether you are traveling alone or as a carpool. In 101 San Mateo, 101/SR-85 Santa Clara, I-680 Contra Costa, I-880 and SR-237 express lanes, a FasTrak CAV toll tag is required for discounted single-occupant CAV travel. The FasTrak CAV toll tag is the only toll tag that will communicate the correct discount to roadside equipment.
Paying Tolls without a FasTrak Toll Tag
Paying with License Plate Account: If you travel over Bay Area bridges regularly and do not want a toll tag, consider opening a License Plate Account. This type of account is now eligible to pay tolls at all bridge toll facilities. License Plate Accounts are not recommended for rental vehicle users. Learn more about opening a License Plate Account.
One-Time Payments: To use Bay Area bridges without a toll tag or License Plate Account, you may set up a short-term, one-time payment account that allows you to pay recent or future tolls online with a credit card, or with cash, check or money order at a FasTrak retail location. Learn more about setting up one-time payments.
Mounting a Toll Tag
You must mount your toll tag on the inside of your vehicle’s windshield. It is illegal to hold up a toll tag with your hand while driving through a tollbooth. To ensure proper toll tag performance, it must be installed properly using the following steps:
- Clean the mount area on your windshield with isopropyl (rubbing) alcohol and allow it to dry completely.
- Remove the plastic tape from the back of the Velcro® mounting strips.
- Position the toll tag horizontally on the windshield as illustrated.
- Press the toll tag firmly against glass.
- Easy account set-up and maintenance
Note: Specific vehicle models may require an external license plate-mounted toll tag. View the FAQ topic on toll transponders or call the Bay Area FasTrak Customer Service Center at 877-BAY-TOLL (877-229-8655) for more information.
Returning Toll Tags
To return a toll tag to FasTrak, please mail it to:
FasTrak Customer Service Center
Toll Tag Return
PO Box 26927
San Francisco, CA 94126
We recommend sending toll tags by certified or registered mail.