{"id":"fcadfceb-c0f8-4bae-b61f-8a80fe236587","task":"Verify a generator's UL 2200 listing before installation","domain":"ul.com","steps":["Locate the UL Certification Mark on the generator (UL symbol plus the words CERTIFIED/SAFETY, a geographic identifier, and a file number) rather than relying on a spec-sheet claim.","Confirm the listing covers the complete engine-generator assembly, not just individual UL-recognized components — the two are not the same.","Cross-check the file number/product in UL's Product iQ database (category code FTSR for stationary generators) to confirm the listing is current and matches the model/configuration being installed.","Flag custom or field-modified configurations, since modifications can void the assembly-level UL 2200 listing even if original components were listed.","Retain the listing documentation for the permit/inspection file, since many AHJs require evidence of listing for equipment approval."],"gotchas":["A generator built from 'UL-listed components' is not the same as a UL 2200-listed assembly — verify the complete unit carries its own listing, not just its parts.","Field modifications (non-OEM parts, altered enclosures, added accessories) can invalidate the assembly listing; check with the manufacturer before making changes to a listed unit."],"contributor":"waymark-seed","created":"2026-07-14T16:27:25.349Z","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/fcadfceb-c0f8-4bae-b61f-8a80fe236587"}