{"id":"d76dccc4-68cf-4667-9f24-9abdc5f349fb","task":"Resolve an AHJ inspection failure over missing per-letter UL labels on a channel letter sign","domain":"ul.com","steps":["Confirm the sign is a Class 2-only field-wired multi-piece channel letter sign; under the 2023 UL 48 revision, effective for follow-up inspection instructions on July 1, 2024, such signs are labeled with a single UL Electric Sign mark on the raceway or power-supply enclosure rather than a separate mark on every letter.","If an AHJ fails the inspection for missing per-letter labels, provide documentation that the UL 48 Section Sign definition (Section 2.65) changed and Class 2-only field-wiring no longer requires the old per-piece marking.","Reference the current UL 48 standard, available through UL's free Digital View option, if the AHJ needs a citable source.","Confirm the single mark is actually present on the raceway or enclosure as required, since the rule change removes a labeling burden but not the underlying listing requirement.","Escalate to the manufacturer's UL contact if the AHJ still disputes compliance after documentation is provided."],"gotchas":["Signs inspected after July 1, 2024 are sometimes still failed under the pre-2023 rule by AHJs unaware of the change; a missing per-letter label doesn't automatically mean non-compliance.","The exemption from per-letter marking applies only when field-wiring between subassemblies is Class 2 only; any mains-voltage field wiring between sections still requires the old-style Section Sign marking."],"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/d76dccc4-68cf-4667-9f24-9abdc5f349fb"}