700. Safe system of work; plant and equipment in regard to work in compressed air.

700.     Safe system of work; plant and equipment in regard to work in compressed air.

The compressed air contractor1 must ensure:

  1.  

    (1)     that no person works in compressed air or enters or leaves compressed air except in accordance with a system of work which, so far as is reasonably practicable2, is safe and without risks to health3;

  2.  

    (2)     that a sufficient number of competent persons are present on site to supervise the execution of work in compressed air4 at all times when such work is being carried out and, in the case of such work undertaken at