E-ZPass MA offers the Carpool Program for private passenger vehicles with three or more commuters. The program is valid for commuters using the Sumner and Ted Williams tunnels or Massachusetts Turnpike, part of Interstate 90.
The program encourages travelers with high occupancy vehicles to carpool by providing discounts on daily tolls, and it is available 24 hours a day, every day of the week. Members must register at a Customer Service Center by providing a valid Massachusetts diver's license, a valid credit card and, if applicable, a valid Massachusetts Registry of Motor Vehicles registration, including a lease agreement with their applications. Motorcycles, business vehicles and commercial vehicles are not eligible for the program, and the account must be renewed annually.