Boston’s public transportation system is operated by the Massachusetts Bay Transportation Authority, but locals know it simply as The "T.” It offers subway, bus, commuter rail and boat service that can take your delegates almost everywhere in the Greater Boston area and beyond.
To ride the "T", riders need to purchase a CharlieCard or CharlieTicket. These can be purchased at every subway station at vending machines, at select convenience stores and online.
mbta.com