Mass. Gen. Laws ch. 54 § 112
The clerk of each city and town and in Boston the Board of Election Commissioners, within fifteen days after the day of any election therein for a senator in congress, representative in congress, governor, lieutenant governor, councillor, state secretary, state treasurer, state auditor, attorney general, clerk of courts, register of probate, sheriff, district attorney, senator or representative in the general court, or for presidential electors, shall transmit to the state secretary copies of the records of votes cast for such officers, together with copies of the records of votes cast on any constitutional amendment, law or proposed law, and on any question submitted to them by statute in any senatorial or representative district or in two or more cities or towns. Said record shall be certified, attested, and sealed by the city or town clerk or election commissioners. The city or town clerk shall within fifteen days after an election for county treasurer or register of deeds, transmit to the county commissioners, and within fifteen days after an election for county commissioners, transmit to the clerk of the courts the records of votes for such officers, certified, attested and sealed as aforesaid; except that in Chelsea, Revere and Winthrop the records of votes for register of deeds shall be transmitted to the election commissioners of Boston. Such copies shall be transmitted in envelopes, upon which shall be stated the offices for, questions on which and districts in which the votes were cast.
Mass. Gen. Laws ch. 54, § 112