Massachusetts General Laws Part I. Administration of the Government (Ch. 1-182) Ch. 112, § 251

The board shall adopt rules relative to the construction, alteration, repair and inspection of all sheet metal work on property and buildings owned, used or constructed by the commonwealth and in property and buildings owned, used or constructed by a public instrumentality of the commonwealth which is not subject to the supervision and control of either the legislative, executive or judicial departments. Such instrumentalities shall include, but not be limited to, the Massachusetts Turnpike Authority, the Massachusetts Bay Transportation Authority and the Massachusetts Water Resources Authority, and all plans for sheet metal work in such buildings shall be subject to the approval of the board.