Mass. Gen. Laws ch. 94 § 327
The attorney general and district attorneys shall enforce the provisions of sections three hundred and twenty-one to three hundred and twenty-seven, inclusive. Any bottler, distributor, redemption center or dealer who violates any provisions of sections three hundred and twenty-one to three hundred and twenty-six, inclusive, shall be subject to a civil penalty for each violation of not more than one thousand dollars.
Any bottler or distributor failing to make full and timely payments as required by section three hundred and twenty-three D shall pay interest on any unpaid amounts at the rate of one and one-half percent for each month or part thereof until payment is made in full; provided, however, that any person, including a bottler, distributor, redemption center or dealer, who violates the provisions of paragraph (i) of section three hundred and twenty-three shall be subject to a civil penalty of the greater of one hundred dollars for each container or twenty-five thousand dollars for each tender of containers.
Mass. Gen. Laws ch. 94, § 327