Welding, cutting, grinding, and other hot work activities can create sparks, flames, and intense heat that may ignite combustible materials and cause serious workplace fires. Before starting hot work, workers should obtain the required hot work permit, inspect the work area, remove or protect combustible materials, and check for flammable gases or vapours where applicable. Gas cylinders must be handled and stored safely, welding equipment should be inspected, and suitable firefighting equipment must be readily available.

A trained fire watch should be assigned whenever required by the risk assessment or applicable procedures to monitor the work area during the activity and for the specified period afterward. Workers should use appropriate PPE, follow approved work procedures, and ensure that nearby openings or hidden spaces are checked for potential fire spread. If unsafe conditions arise, work must stop immediately. Following hot work safety procedures helps prevent accidental fires, protects workers, and reduces damage to industrial facilities.