Hot work

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For the type of metalworking process, see Hot working.

Hot work is any process that can be a source of ignition when flammable material is present or can be a fire hazard regardless of the presence of flammable material in the workplace. Common hot work processes are welding, soldering, cutting and brazing. When flammable materials are present, industrial processes such as grinding and drilling become hot work processes.[1]

In some countries, such as the UK and Canada,[2] a hot work permit is required for hot work.[1]


In the United States, OSHA maintains regulations for hot work in the marine industrial setting. The following regulations apply:

Other relevant literature is:

  • API RP 2009 : Safe Welding, Cutting, and Hot Work Practices in the Petroleum and Petrochemical Industries

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