E-ZPass Interagency Group is an electronic toll collection system used on toll roads, toll bridges, and toll tunnels in the eastern half of the United States. The group itself is composed of several s
An E-ZPass system transponder unit, also known as a tag or a pack, was distributed by the Massachusetts Turnpike Authority for use with their E-ZPass-compatible Fast Lane system and other roads which utilize E-ZPass.
New G4 style E-ZPass transponder for MassDOT manufactured by Kapsch
The Illinois State Toll Highway Authority replaced traditional transponder units for I-Pass with sticker transponders in 2024, which require no power and are permanent to the vehicle whose windshield it is affixed to (previous transponders will remain issued and can be used until their expiration in the 2030s, and larger vehicles will still use traditional transponders for the time being to allow swapping).
An E-ZPass exterior license plate mount transponder