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Under OSHA's general industry rule, how long must a fire watch continue after welding or cutting stops?

At least a half hour after the work is finished.

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  1. 5 minutes
  2. At least 30 minutes ✔
  3. 3 hours

Why: Sparks and hot slag can smolder out of sight and start a fire later. OSHA requires a fire watch for at least a half hour after welding or cutting ends.

Huh, didn't know that: Fire watchers must have fire extinguishing equipment readily available and be trained in using it.

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I bought a friend a fire extinguisher. He was de-lighted.
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References

Answer: At least 30 minutes. Sparks and hot slag can smolder out of sight and start a fire later. OSHA requires a fire watch for at least a half hour after welding or cutting ends.

  1. OSHA 29 CFR 1910.252 General requirements, welding, cutting and brazing www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.252
    A fire watch shall be maintained for at least a half hour after completion of welding or cutting operations
    Checked 2026-10-10.
  2. OSHA 29 CFR 1910.252 General requirements, welding, cutting and brazing www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.252
    Fire watchers shall have fire extinguishing equipment readily available and be trained in its use.
    Checked 2026-10-10.

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