Chapter 40 of the General Laws, as appearing in the 2018 Official Edition, is hereby amended by inserting after section 21E the following section:-

Section 21F.  In a city or town that accepts this section pursuant to section 4 of chapter 4, a city or town shall have the power to adopt a gender neutral title for its board of selectmen or board of aldermen; provided, that said boards shall retain all powers and authorities of a board of selectmen or board of aldermen under any general or special law. Members of said boards in cities or towns that adopt a gender neutral title shall thereafter be known as the corresponding gender neutral title; provided, that said members shall retain all powers and authorities of a selectman or alderman under any general or special law.