As of 2015, the E-ZPass Interagency Group is comprised of 25 agencies in 14 states, each with its own telephone number. The official E-ZPass Interagency Group website offers links to its individual agency websites and contact information, including their respective telephone numbers.
E-ZPass is an electronic toll collection system used in the northeast United States. Vehicles are equipped with a radio frequency identification transponder mounted on their inside windshield. This transponder is read by readers at designated E-ZPass lanes and the toll is deducted from a prepaid account. Annual transponder fees, account minimums and discounts on tolls vary by state. Retail availability varies by state with some agencies offering transponders in pharmacy or supermarket retail settings.