No person shall remove or tamper with any safety appliance prescribed by the board or by the ASME Code, section one, four or eight. The safety relief valve shall not be loaded to a greater pressure than that allowed by the certificate of inspection for the boiler.
Mass. Gen. Laws ch. 146, § 74
Safety appliances; tampering; maximum pressure
Official source: Massachusetts Legislature. Reproduced from public-domain Massachusetts statutes; confirm against the official source for the current text. Not legal advice.