Frequently Asked Questions
FasTrak Transponder
The 405 Express Lanes operates with a state-of-the-art electronic toll collection system which requires a FasTrak® transponder. This transponder-based system allows travel without stopping to pay a toll and there will be no cash payments or toll booths. FasTrak® transponders will be required for customers to use the express lanes.
To use the 405 Express Lanes, vehicles must have a properly mounted FasTrak® transponder associated with an account.
In order to receive carpool discounts on the 405 Express Lanes, vehicles must have a FasTrak® Flex switchable transponder.
Travelling without a transponder on the 405 Express Lanes is a violation of the California Vehicle Code and may result in the issuance of a toll evasion violation notice or citation by the California Highway Patrol.
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