Hot work

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For the type of metalworking process, see Hot working.

Hot work is a 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 involve welding, soldering, cutting, brazing burning and the use of powder-actuated tools or similar fire producing operations outside of designated hot work areas. 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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