US · 29 CFR 1910.7; applicable OSHA electrical provisions
Workplace electrical equipment: NRTL approval scope
Identify the market and product category first. Each dossier separates legal duties, referenced standards, evidence and the comparison needed for an award.
Product Scope
Equipment subject to OSHA workplace approval requirements; consumer-only distribution and local installation rules require separate analysis.
Requirements
Check whether the equipment requires approval, then confirm the NRTL is recognised for the relevant test standard and actual certification site. A testing laboratory accreditation or a component mark alone does not establish approved complete equipment.
Required Evidence
Applicable OSHA provision, NRTL scope, end-product listing, exact model and configuration, certification mark and supporting safety report.
Comparison for the Awards
Approval establishes conformity. A stronger safety claim requires measurable additional performance; the presence of an NRTL logo is not itself above-standard evidence.
Version & Transition
Federal workplace route, not a blanket rule that every household electrical product must carry a particular private brand mark.
Official Sources
Applicability depends on the product classification, intended use, configuration and actual sales territory. Manufacturing, placing-on-the-market and testing dates, together with transition provisions, are checked as required by each applicable rule. The directory identifies sources; it does not replace assessment of the specific model. Standards are identified by reference, and their authoritative texts remain with the issuing bodies. Official source documents retain their original language.