Mass. Gen. Laws ch. 20, § 30
(d) The board shall assess a fee of 10 cents per hundredweight upon milk delivered by Massachusetts milk producers or such fee that is commensurate with the credit allowed for producer contributions to state qualified programs under the Dairy Production Stabilization Act of 1983, codified at 7 U.S.C. section 4504 (g) as amended. The fee shall be collected as follows: