A FasTrak transponder is mandatory to use the I-10 and I-110 ExpressLanes in Los Angeles. Furthermore, a switchable transponder is needed for qualifying carpools to get a discount.
As a benefit to its accountholders, the Transportation Corridor Agencies (TCA) now only issues switchable transponders.
These transponders have a switch that can be set to indicate that there are one, two or three or more occupants in the vehicle. Prior to starting a trip, it is the driver's responsibility to indicate the number of occupants in the vehicle by moving the transponder's switch to the appropriate setting (1, 2, 3+).
On the I-110 ExpressLanes, carpools with two or more people, vanpools and motorcycles travel toll-free. On the I-10 ExpressLanes, carpools with three or more people, vanpools and motorcycles travel toll-free. Solo drivers can choose to use the I-10 and I-110 ExpressLanes for a toll. All vehicles, regardless of the number of occupants, must have a FasTrak transponder mounted to the windshield per state law in order to drive in the ExpressLanes.
Vehicles using the I-10 and I-110 ExpressLanes with a standard transponder (not switchable) will be charged a nonrefundable toll regardless of the number of occupants in the vehicle. Similarly, all vehicles - no matter the number of occupants or option selected on the switchable transponder - will be charged a toll on The Toll Roads, which do not offer reduced tolls for double or high occupancy vehicles.
Click here to visit the Metro ExpressLanes website to learn more.