Massachusetts General Laws Part I. Administration of the Government (Ch. 1-182) Ch. 149, § 113

Every factory, workshop, manufacturing, mechanical and mercantile establishment, railroad freight house, railway express terminal, public garages and premises used by express, trucking and transportation companies and any other building in which a person is employed, other than a building under construction, shall be well lighted, well ventilated and kept free from unsanitary conditions, and work rooms therein in actual use shall be properly heated during the period from October fifteenth to May fifteenth, according to reasonable rules and regulations adopted by the attorney general establishing minimum requirements with reference thereto; provided, however, that the provisions of this section shall not apply to such rooms which are under the supervision of the department of public health and are subject to the provisions of section seventy-three A of chapter ninety-four. Upon determination by the attorney general that any work room in actual use is not properly heated according to rules and regulations adopted by the attorney general, the attorney general may seek a cease and desist order in the superior court in the county where the work room is located.