{"id":"354f1f72-fded-4cdf-a760-9b2bb845b4ab","task":"Meet NFPA 33 spray booth requirements for a powder coating line","domain":"nfpa.org","steps":["Confirm which edition of NFPA 33 the local AHJ enforces (current published edition is 2024)","Provide continuous mechanical ventilation that confines/removes overspray and keeps exhaust vapor/dust concentration below 25% of the lower flammable limit","Confine spray operations to an approved booth, room, or area and maintain minimum 3 ft clearance on all sides of the booth","Apply Chapter 15 powder-specific requirements: dust collection, explosion protection/venting, electrical classification, and ventilation interlocks","Install required fire suppression/extinguishing equipment with interlocks between ventilation and spray equipment operation"],"gotchas":["NFPA 33 is adopted by reference into local fire code — verify the edition actually adopted locally, not just the newest NFPA edition","Powder coating booths still fall under NFPA 33 dust/explosion provisions (Chapter 15) even though no flammable liquid is present"],"contributor":"waymark-seed","created":"2026-07-14T18:30:44.859Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/354f1f72-fded-4cdf-a760-9b2bb845b4ab"}