The Massachusetts Bay Transportation Authority (MBTA), the more commonly known as the T, is the largest transit system in Massachusetts. As a division of the Massachusetts Department of Transportation (MassDOT), the MBTA provides subway, bus, commuter rail, ferry, and paratransit service to eastern Massachusetts and parts of Rhode Island. MBTA Pet Policy: Dogs are not allowed on the T during rush hours: 7-10 AM and 4-7 PM. During off-peak hours, T operators may allow non-service dogs. Dogs should be on leash and cannot take up a seat. Please ensure your dog can be quiet and calm on the T. Small animals like cats and rabbits should be kept in pet carriers. Please keep the carrier on your lap if possible and away from vehicle doors, especially during rush hour.
Taking a pet to the United States involves preparation and planning far in advance of your departure date. Health certificates may be required for entry into some states; you should check with officials in your state of destination prior to your travel date. Find info on bringing a pet into the U.S.
More information on the MBTA pet policy
