Types of Transponders

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Types of FasTrak Transponders

FasTrak Sticker Transponder

FasTrak sticker transponders are the cutting-edge in electronic toll collection technology.

In 2019, various toll operators in California will offer/issue new small, durable sticker transponders to replace existing hardcase transponders. Sticker and hardcase transponders are valid to pay tolls on all of California’s tolled bridges, lanes and roads.

Sticker Transponder Installation

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FasTrak Switchable Transponder

Also known as FasTrak Flex®, FasTrak switchable transponders / FasTrak Flex transponders have a small black switch that can be moved to indicate the number of occupants in the vehicle.

Prior to starting each trip, it is the driver's responsibility to indicate the number of occupants in the vehicle by moving the switch to the appropriate setting (1, 2, 3+). Some tolling facilities allow qualifying carpools and eligible vehicles to drive for free or at a discounted rate. On The Toll Roads, all vehicles are charged a toll 24 hours a day, seven days a week — no matter the number of occupants or option selected on a switchable transponder (FasTrak Flex).

Switchable Transponder Installation

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FasTrak Standard Transponder

Standard FasTrak transponders do not have a small black switch that can be moved to indicate the number of occupants in the vehicle. The toll is recorded based on the trip length, location or time of day. For toll facilities that require no transponder for qualifying carpools and eligible vehicles, removing the transponder from the vehicle or using an agency-provided Mylar® bag is suggested to avoid tolls being charged.

Standard Transponder Installation

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FasTrak External Transponders

FasTrak external transponders – used primarily on fleet and commercial vehicles – are attached to the vehicle's front license plate or are screw-mounted in the area on the front bumper where the license plate is normally located.

External Transponder Installation

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