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Hot work introduces ignition sources and potential toxic fumes from heated coatings. A safe permit requires verifying that combustible atmospheres are controlled (monitoring LEL), ensuring ventilation captures fumes, and assessing coatings for hazardous constituents (e.g., lead, isocyanates, chlorinated compounds that could form phosgene). Pre-job planning includes isolating or removing flammables, shielding combustibles, establishing a fire watch with proper duration, and confirming that suppression equipment is in place. Solely assigning a fire watch (A) is insufficient without atmospheric and toxicology considerations. Cotton clothing (C) is basic PPE but does not control airborne hazards or ignition risks. Breaks (D) address heat strain but not the fundamental risks. Supervisors must verify that hazard controls are implemented, workers are trained on the permit conditions, and monitoring/ventilation continues as conditions change. Documentation and post-work fire watch intervals complete the permit cycle in line with robust supervisory responsibilities.