{"id":"ca2d6921-4d60-482a-8169-faae30ccc620","task":"Comply with the chromium electroplating NESHAP under 40 CFR 63 Subpart N, including fume suppressant rules","domain":"epa.gov","steps":["Confirm whether the shop's hard or decorative chromium electroplating/anodizing tanks are subject to 40 CFR 63 Subpart N based on tank type and source size","Select a compliant fume suppressant: EPA's 2012 rule amendment prohibited PFOS-based fume suppressants for chromium electroplating/anodizing tanks, with compliance required by September 21, 2015","Install and operate the required emission control equipment (e.g., composite mesh-pad or packed-bed scrubbers, fiber-bed mist eliminators) matched to tank category and size","Conduct required initial performance testing/monitoring and maintain ongoing surface tension or other required operating-parameter monitoring","Confirm current fume suppressant chemistry with the plating chemical supplier and watch for further EPA rulemaking, since EPA issued an industry-wide information request in 2023"],"gotchas":["PFOS-based fume suppressants have been prohibited since September 2015 — get supplier documentation confirming current chemistry is compliant rather than assuming older stock still qualifies","Subpart N applicability and control requirements differ by tank type (hard vs. decorative chromium) and source size — do not apply one blanket requirement across all tanks"],"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":"sampled","url":"https://mcp.waymark.network/r/ca2d6921-4d60-482a-8169-faae30ccc620"}