Mass. Gen. Laws ch. 7, § 3F

Each state agency shall also provide 2 copies of its publication, as defined in section 39 of chapter 6 to the state secretary, 1 of which shall be retained for 2 years as a reference copy. The state secretary shall determine which publications are of sufficient public interest and may then either provide for electronic availability of such publications, reproduce the publications in appropriate quantities or acquire the publications in appropriate quantities directly from the issuing agency, at the cost of printing, for distribution by said secretary.