Canada Occupational Health and Safety Regulations

13.16 (1) Subject to subsection (2), where it is necessary to remove a machine guard from a machine in order to perform repair or maintenance work on the machine, no person shall perform the repair or maintenance work unless the machine has been locked out in accordance with a written lock out procedure provided by the employer.

(2) Where it is not reasonably practicable to lock out a machine referred to in subsection (1) in order to perform repair or maintenance work on the machine, the work may be performed if

• (a) the person performing the work follows written instructions provided by the employer that will ensure that any hazard to that person is not significantly greater than it would be if the machine had been locked out; and

• (b) the person performing the work

  • (i) obtains a written authorization from the employer each time the work is performed, and

  • (ii) performs the work under the direct supervision of a qualified person.