An E-ZPass transponder is a small electronic device you attach to your car's windshield to pay for tolls on a trip. It allows you to use the high speed cashless lanes on toll roads, bridges and tunnels where E-ZPass is accepted, and often provides discounts to the cash rate depending on the state that issued the E-ZPass. Important to note is that many existing toll facilities are converting to cashless tolling meaning if you don't have a transponder a picture will be taken of your license plate and you will receive a bill in the mail that frequently will include a service charge and end up more expensive than the transponder rate.
E-ZPass is accepted at toll facilities in the following 17 states:
That depends upon which state your E-ZPass was issued and which toll facility you are on. It varies from state-to-state as states like Maryland choose to provide discounts to their residents and so only apply discounts for E-ZPass transponders issued by the Maryland Transportation Authority. In other instances, like the Lincoln and Holland tunnels into New York City discounts are applied to all E-ZPass holders, regardless of state of issue.
This can be quite confusing as there really is no rhyme our reason, and given that there is no E-ZPass Toll Calculator that works across all of the states we've built all that logic into the Tollsmart application so you don't have to think about it! And this applies to all transponder discounts across the US such as SunPass in Florida, TxTag in Texas and FasTrak in California.