No cinematograph or similar apparatus, thirty-five millimeter or larger, involving the use of so-called safety film shall be kept or used for the purpose of exhibiting such films in or upon the premises of a public building until a booth or enclosure, which has been inspected and approved by an inspector and his certificate issued therefor, has been provided; nor until such precautions against fire as the commissioner of the division of professional licensure may specify have been taken by the owner, user, or exhibitor.
Mass. Gen. Laws ch. 143, § 72