Frequently Asked Questions
FasTrak Transponder
Yes, you can use your FasTrak® transponder on any toll agencies in California. The 405 Express Lanes exchanges information with the other toll operators within the state to provide you with seamless travel with a single account.
To take advantage of the free or discounted tolls for carpoolers on the 405 Express Lanes, drivers must have a switchable FasTrak® transponder.
To view a map and websites of all California toll agencies and information regarding their toll rates and policies, click here.
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