Regulations Made Under Part II of the Canada Labour Code Respecting Occupational Safety and Health of Employees Employed on or in Connection with Exploration or Drilling for, or the Production, Conservation, Processing or Transportation of, Oil or Gas in Canada Lands, as Defined in the Canada Oil and Gas Act

6.4 (1) No person shall use a boiler, pressure vessel or piping system unless it has been inspected by an inspector in accordance with subsection (2).

(2) Every boiler, pressure vessel and piping system shall be inspected in accordance with sections 6.8 to 6.10

• (a) after installation; and

• (b) after any welding, alteration or repair is carried out on it.