Every boiler or other pressure vessel and its respective mountings, shall, before being put into service for the first time, be subjected to a hydraulic test complying with the applicable test requirements of regulation 62(5).

Means shall be provided which will prevent overpressure in any part of boilers and other pressure vessels, and in particular every boiler and every unfired steam generator shall be provided with not less than two safety valves, provided that, having regard to the output or any other feature of any boiler or unfired steam generator, only one safety valve may be fitted if adequate protection against overpressure is provided.

Where oil-fired water tube boilers are fitted, an automatic boiler water low level alarm and an automatic boiler water low level shut-off valve in the fuel supply pipe to the furnace fronts shall be provided.

Every oil fired boiler which is not continuously attended shall be provided with arrangements to shut off the fuel supply and give an alarm at an attended location in the event of low boiler water level, combustion air supply failure or flame failure.

Every boiler designed to contain water at a specific level shall be provided with at least two means for indicating the water level, at least one of which shall be a direct reading gauge glass.

Every water tube boiler serving turbine machinery shall be fitted with a high water level alarm.

Means shall be provided to test and control the quality of water in the boiler.