Mass. Gen. Laws ch. 234A § 10
On or before the first day of June of each year, each city and town shall make a sequentially numbered list of the names, addresses, and dates of birth of all persons who were seventeen years of age or older as of the first day of January of the current year and who resided as of the first day of January of the current year in such city or town. The names of residents shall be listed and numbered, without duplication, in alphabetical order, one name to each number, along with such other information and in such form and format as shall be specified in the regulations of the jury commissioner. On or before the said date, each city and town shall submit one copy of this list to the office of jury commissioner and make a copy of such list available for inspection by members of the public. Hereinafter in this chapter, such list shall be referred to as the "numbered resident list" and a particular individual on such list shall be referred to as a "numbered resident". The cost of preparing the numbered resident list shall be paid by the city or town.
Mass. Gen. Laws ch. 234A, § 10