Mass. Gen. Laws ch. 40C, § 15: Filing of ordinances, maps, reports, etc.

Section 15. All ordinance or by-laws creating an historic district adopted by a city or town under authority of this chapter and under authority of any special law, unless the special law shall otherwise provide, amendments thereto, maps of historic districts created thereunder, and annual reports and other publications of commissions, and rosters of membership therein, shall be filed with the Massachusetts historical commission.