Conditional requirement
NRTL certification of equipment
NRTL certification of equipment — conditional requirement, United States. It binds employers, where an OSHA standard requires equipment to be approved or listed. The certification is issued by an OSHA-recognised private laboratory, not by OSHA.
- Jurisdiction
- United States
- Record class
- Conditional requirement
- Instrument
- Certification
- Last verified
Where this applies
This record is scoped to United States. Scope is part of the claim: a rule that binds one part of a country does not bind the whole of it, and this library states the scope its sources state.
Instrument
29 CFR 1910.7; 29 CFR 1910.303(a) and 1910.399
Who it binds
Employers, where an OSHA standard requires equipment to be approved or listed. The certification is issued by an OSHA-recognised private laboratory, not by OSHA.
What it requires
Where an OSHA standard requires 'approved' or 'listed' equipment, it must be certified by one of OSHA's Nationally Recognized Testing Laboratories (NRTLs). OSHA recognises the laboratory; it does not approve products itself. As of 8 August 2026 there are 21 recognised NRTLs — UL LLC is one of them, which corrects the common belief that 'UL is required' in the US.
Route to the authority
Last verified:
Related records and requirements
- Manufacturing and Industry — Applies to the employer using equipment where an OSHA standard requires it to be approved/listed — not to the equipment's manufacturer.
This page is for information only; it is not legal advice, and it does not establish whether this record applies to your business. Verify current status through the official source above.