For carpools, motorcycles, and other eligible vehicles to receive discounted travel in the I-880, I-580, I-680 Contra Costa and SR-237, your FasTrak Flex or FasTrak CAV toll tag must be set to the proper position and associated with a valid FasTrak account.
You can order a FasTrak Flex toll tag online via the account enrollment process. Learn more about the FasTrak CAV toll tag. To find a retail location near you to pick up a FasTrak Flex toll tag, visit the Get FasTrak page. We recommend that you call ahead to make sure that FasTrak Flex toll tags are in stock.
NOTE: Solo drivers in eligible clean air vehicles do not qualify as a carpool in the I-880, I-680 Contra Costa and SR-237 express lanes. To receive a discounted toll, you must use a FasTrak CAV toll tag. Single-occupant CAVs using a FasTrak Flex or FasTrak CAV set in position 2 or 3+ may be cited by CHP.
Topic: Toll Violations