Oil and Gas Occupational Safety and Health Regulations

11.18 Every assembly of pipes, pipe fittings, valves, safety devices, pumps, compressors and other fixed equipment that is used for transferring a hazardous substance from one location to another shall be

• (a) labelled to identify the hazardous substance transferred therein;

• (b) fitted with valves and other control and safety devices to ensure its safe operation;

• (c) inspected by a qualified person before it is placed in service and once a year thereafter; and

• (d) maintained and repaired by a qualified person.