Mass. Gen. Laws ch. 40 § 22C
Any city or town, having installed parking meters or coin-operated locking devices for bicycle parking under section 22A, may install parking meters in municipally owned or leased off-street parking lots and other devices for controlling the off-street parking lots. In a city or town that accepts this sentence, the city or town may use any receipts from those parking meters and other devices for the purpose of purchase or lease of additional parking lots, the care and maintenance of the parking lots, the purchase or lease of a commuter shuttle or commuter shuttle services between the parking lots and available public transportation, the care and maintenance of public transportation station accessibility improvements and in general for traffic control or traffic safety purposes, including payment for public liability coverage in connection with the purchase, lease and use of the municipally owned or leased parking lots and commuter shuttles or commuter shuttle services or any of the purposes and uses listed in section 22A.
Mass. Gen. Laws ch. 40, § 22C