S-2.1, r. 13 - Regulation respecting occupational health and safety
328. Attachments: Flexible hoselines in which compressed air flows shall be equipped with one of the following attachments in the event of section-by-section assembly:
(1) collars located on either side of the connection and held together by an attachment;
(2) an automatic locking device;
(3) a coupling fitted with a clamping device.