No person, except under the direction of an inspector, shall attempt to remove or shall do any work upon any safety appliance, prescribed by these regulations, while a boiler is in operation. If any of these appliances are removed or repaired during an outage of a boiler, they shall be reinstalled and in proper working order before the object is again placed in service. No person shall in any manner load the safety valve or valves to maintain a working pressure in excess of that stated on the operating certificate.
Conn. Agencies Regs. § 29-232-30