Insurance companies shall, after each internal and external inspection, if the boiler and its appurtenances conform to the rules of the board and if they deem the boiler to be in safe working condition otherwise, submit such information to the department. The department shall, upon receipt of the required fee, issue a certificate of inspection stating the maximum pressure at which the boiler may be operated as ascertained by the rules of the board.
Mass. Gen. Laws ch. 146, § 25