Do I need to remove all combustible and flammable materials closer than 35 feet before performing hot work?
No. The standard states that you must evaluate hot work areas to make sure the area is free of fire hazards (1915.503(a)(2)) and maintain fire-hazard free conditions (1915.503(b)(1)). The most effective method is to remove combustible and flammable materials a safe distance away from ignition sources (35 feet). The next most effective methods are to shield the combustible or flammable material with metal or flame-resistant guards, use flame-proof covers, or inert sandwich type material with appropriate precautions. When these methods are not used, a fire watch must be posted. B-3. Is the “35-foot” rule for hot work a new requirement? No. OSHA’s general industry welding and brazing rules at 29 CFR 1910.252(a)(2)(vii) and NFPA’s 51B-2003 Standard for Fire Prevention During Welding, Cutting and Other Hot Work, use a 35-foot limit as an appropriate safety measure. B-4. When hot work is to be performed at a location within 35 feet of combustible material, can I choose to post a fire watch i
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