Mass. Gen. Laws ch. 59, § 60
Every board of assessors shall record all abatements of taxes. The record of abatement of the whole or any part of any tax shall be signed by a majority of the board and shall show plainly the following details:
First, The name or title in which the tax stands assessed.
Second, The year in which the tax was assessed.
Third, The total amount of the tax.
Fourth, The date when the abatement was made.
[There is no Fifth.]