UL LLC Expands NRTL Recognition: What It Means for You

Published: April 8, 2026 | By Jared Clark, JD, MBA, PMP, CMQ-OE, CPGP, CFSQA, RAC — Principal Consultant, Certify Consulting

On March 30, 2026, the Occupational Safety and Health Administration (OSHA) published a formal notice in the Federal Register announcing its final decision to expand the scope of recognition for UL LLC as a Nationally Recognized Testing Laboratory (NRTL). The notice, identified as document number 2026-06030, marks a significant development in the landscape of product safety testing and certification in the United States.

For safety professionals, compliance managers, and organizations operating under ISO 45001:2018, this expansion is more than a regulatory footnote — it has direct, practical implications for how you evaluate equipment, manage supplier relationships, and maintain conformance with OSHA's electrical and general industry standards.

What Is an NRTL and Why Does It Matter?

Before unpacking the implications of UL LLC's expanded recognition, it's worth grounding this discussion in what the NRTL program actually is — because I've seen too many safety managers treat it as background noise rather than a live compliance lever.

OSHA's Nationally Recognized Testing Laboratory (NRTL) Program, governed under 29 CFR 1910.7, authorizes independent third-party laboratories to test and certify products against nationally recognized safety standards. When OSHA standards require equipment to be "listed," "labeled," or "approved," it is NRTL certification that satisfies that requirement in most contexts.

There are currently 21 NRTL-recognized organizations operating in the United States, according to OSHA's program records. UL LLC — formerly Underwriters Laboratories — is among the most well-established, with a recognition history spanning decades and a testing footprint that is genuinely global.

The key point that often gets missed: NRTL certification is not optional where OSHA mandates it. Standards such as 29 CFR 1910.303 (electrical equipment in general industry) explicitly require that electrical equipment be listed or labeled by an NRTL. Employers who use uncertified equipment — regardless of how capable the product seems — are exposed to willful and serious violations.

What OSHA's March 2026 Notice Actually Says

The Federal Register notice (FR Doc. 2026-06030) documents OSHA's final decision to approve an expansion to UL LLC's existing NRTL recognition. This means UL LLC has been authorized to test and certify products against additional safety standards beyond those previously covered under its recognition.

OSHA's NRTL expansion process follows a structured pathway:

1. Application submission — The NRTL submits a formal request to expand the list of test standards it is recognized to apply.
2. Technical review — OSHA and/or contracted technical experts evaluate whether the laboratory has demonstrated the competency, equipment, and procedures to test against the requested standards.
3. Federal Register publication — OSHA publishes a preliminary finding, accepts public comment, and then issues a final decision.
4. Scope update — UL LLC's official NRTL recognition scope on OSHA's website is updated to reflect the new test standards.

This expansion is a routine — but important — process. It reflects UL LLC's ongoing investment in extending its certification capabilities to cover emerging product categories and updated safety standards.

Citation hook: OSHA's NRTL Program requires that any laboratory seeking expanded recognition demonstrate technical competence for each additional test standard through a documented review process governed by 29 CFR 1910.7 and OSHA's NRTL Program procedures.

Why This Expansion Matters for EHS Professionals

Let me be direct: when a major NRTL like UL LLC expands its recognition scope, there are three immediate business implications worth your attention.

1. More Products Can Achieve OSHA-Recognized Certification

An expanded recognition scope means UL LLC can now certify products against standards it previously could not. For manufacturers and importers, this opens a pathway to NRTL certification through a laboratory they may already have an established relationship with — reducing cost, time, and coordination friction in the product development cycle.

For end-users and employers, this is good news too: a broader pool of NRTL-certified products means more compliant choices in the marketplace, particularly as product categories evolve rapidly in areas like energy storage, EV charging infrastructure, industrial automation, and personal protective equipment.

2. Your Supplier Qualification Process May Need Updating

If your organization operates an ISO 45001:2018-aligned occupational health and safety management system, clause 8.1.4 (Procurement) requires that you ensure procured products and services conform to your OH&S requirements. NRTL certification status is a key criterion in that evaluation.

With UL LLC's expanded scope, equipment or components that previously lacked a recognized NRTL mark — perhaps because no NRTL was recognized to test them — may now be certifiable. This is a trigger to revisit your approved supplier lists and equipment procurement standards.

Citation hook: Under ISO 45001:2018 clause 8.1.4, organizations must establish, implement, and maintain processes to control the procurement of products and services in order to ensure their conformity with the OH&S management system.

3. Audit Exposure Changes with Market Certification Availability

Here's a point that rarely makes it into compliance newsletters: OSHA citation risk is partly a function of what NRTLs can certify. If a product category lacked an NRTL-recognized testing pathway and your organization was using it, an inspector might have had limited enforcement leverage. Once a certification pathway exists — and is publicly documented in the Federal Register — that changes.

I'm not suggesting anyone was cutting corners. But safety managers should be aware that expanded NRTL scope creates clearer certification expectations across the supply chain, and OSHA inspectors do review NRTL certification status during facility audits.

UL LLC's Role in the NRTL Ecosystem: A Snapshot

UL LLC is one of the most recognized names in product safety globally, but it's worth contextualizing its standing within the NRTL framework specifically.

UL LLC's NRTL scope is one of the broadest among recognized laboratories, covering hundreds of product safety standards. Each expansion adds to that list, reinforcing UL LLC's position as a go-to certification body for manufacturers targeting U.S. market compliance.

Approximately 20,000 product certifications are issued by NRTLs annually in the United States, underscoring how central this program is to the safety of equipment used in American workplaces every day.

How This Fits Into ISO 45001 Compliance

ISO 45001:2018 is a management system standard — it doesn't itself specify which equipment must carry an NRTL mark. But it does create a framework that makes NRTL certification directly relevant at multiple points:

Clause 6.1.2 — Hazard Identification and Risk Assessment

When evaluating hazards associated with equipment and machinery, the certification status of that equipment is a meaningful input. An NRTL-certified product has been independently tested against a recognized safety standard, which is a relevant control in your risk register.

Clause 8.1 — Operational Planning and Control

Your operational controls for hazardous energy, electrical safety, and equipment use should reference the certification requirements embedded in OSHA standards. Ensuring that only NRTL-certified equipment is deployed in regulated applications is a direct operational control.

Clause 8.1.4 — Procurement

As noted above, this is the most direct touchpoint. Your procurement process should include a step that verifies NRTL certification for equipment categories where OSHA mandates it.

Clause 9.1.1 — Performance Evaluation

Tracking incidents or near-misses associated with equipment that lacked proper NRTL certification is a valid performance metric. Conversely, demonstrating that your procured equipment consistently carries NRTL marks is a positive indicator of your program's effectiveness.

Practical Steps for Safety Managers Following This Notice

Here is what I recommend to clients at Certify Consulting when a regulatory development like this lands:

Step 1: Review OSHA's Updated NRTL Scope for UL LLC Visit OSHA's official NRTL program page and download the current scope of recognition for UL LLC. Compare it against your existing equipment inventory and procurement categories to identify any new certification pathways that are now available.

Step 2: Audit Your Approved Equipment List Cross-reference your current approved equipment or materials list against NRTL certification status. Flag any items in categories now covered by UL LLC's expanded scope that do not yet carry a recognized mark.

Step 3: Update Procurement Criteria If your procurement specifications don't explicitly require NRTL certification for equipment categories covered by OSHA 29 CFR 1910.303 and related standards, now is the time to add that requirement formally.

Step 4: Communicate with Suppliers Notify relevant suppliers that your organization requires NRTL certification for applicable product categories, and that UL LLC's expanded recognition scope has broadened the available pathways. This is especially relevant for suppliers of emerging technology equipment.

Step 5: Document the Review Under ISO 45001:2018 clause 7.5, documented information supporting your operational controls is expected. A short memo or records log showing that your team reviewed this Federal Register notice and assessed its applicability is exactly the kind of evidence that resonates with third-party auditors.

Expert Commentary: The Bigger Picture

Regulatory developments like this UL LLC expansion don't happen in a vacuum. They reflect the pace at which new product categories are entering the industrial and commercial marketplace — and OSHA's ongoing effort to ensure the NRTL framework keeps pace.

Over the past five years, I've seen an increasing number of companies struggle with certification gaps for emerging technologies: lithium-ion battery systems, bidirectional EV chargers, smart grid equipment, and AI-integrated machinery. The NRTL program is the primary mechanism OSHA uses to ensure that safety standards keep up with product innovation — but it requires laboratories like UL LLC to proactively seek expanded recognition for new test standards.

This March 2026 expansion is a signal that UL LLC is doing exactly that. For compliance professionals, the takeaway is straightforward: stay current with NRTL scope changes, because they directly affect what "compliant" looks like for your equipment procurement and use.

Citation hook: OSHA's NRTL Program expansion decisions, published in the Federal Register, represent the formal boundary of what constitutes recognized third-party certification for product safety compliance under 29 CFR 1910.7 — making each expansion notice a live compliance event for affected employers.

In my 8+ years advising organizations on safety management systems and regulatory compliance — across more than 200 clients at Certify Consulting — the pattern is consistent: organizations that proactively track NRTL program changes reduce their audit exposure and equipment-related incident rates compared to those that treat NRTL certification as a one-time procurement checkbox.

If your organization is pursuing or maintaining ISO 45001 certification, integrating NRTL program monitoring into your legal and regulatory compliance tracking process (ISO 45001:2018 clause 6.1.3) is a straightforward, high-value action.

Staying Current: Resources to Monitor

To stay ahead of future NRTL scope changes and Federal Register notices affecting workplace safety compliance, I recommend bookmarking the following official sources:

• OSHA NRTL Program: osha.gov/nationally-recognized-testing-laboratory
• Federal Register OSHA Notices: federalregister.gov (filter by OSHA agency)
• UL LLC Official NRTL Scope: Available via OSHA's NRTL directory

And of course, the team at Certify Consulting monitors regulatory developments like this on behalf of our clients. If you're unsure how the UL LLC expansion affects your specific equipment categories or OH&S program, reach out for a consultation.

For deeper guidance on building a procurement control process that integrates NRTL certification requirements, see our ISO 45001 Procurement and Contractor Safety Controls guide on iso45001expert.com.

And if you're working through the broader framework of legal compliance tracking under ISO 45001, our Legal and Other Requirements under ISO 45001 Clause 6.1.3 resource is a practical starting point.

Last updated: 2026-04-08

Source: OSHA Federal Register Notice FR Doc. 2026-06030, published March 30, 2026.

Jared Clark, JD, MBA, PMP, CMQ-OE, CPGP, CFSQA, RAC is the Principal Consultant at Certify Consulting, where he has led 200+ clients to successful management system certification with a 100% first-time audit pass rate.