Mass. Gen. Laws ch. 64A, § 3A: Determination of average price of fuel and tax per gallon; notice

Section 3A. The commissioner shall, before the commencement of each calendar quarter, determine the average price of fuel and the tax per gallon to be applicable for each of the three months in the ensuing calendar quarter; and shall notify every distributor, unclassified importer and unclassified exporter of the tax per gallon that shall apply for such calendar quarter.