Electrical Safety Testing and Certification for Commercial Refrigeration Equipment
OSHA approved Electrical Safety Certification for the US market.

Whether you’re launching products into the US market for the first time or already sell into it, you'll need Electrical Safety Testing Certification issued by an OSHA-approved Nationally Recognised Testing Laboratory (NRTL) and qualified certification body.
Here at NSF, we provide a one-stop shop for the testing and certification of a range of commercial kitchen equipment, including commercial ice machines, commercial refrigerators, commercial freezers and more.
What are the OSHA electrical safety testing requirements?
There are two specific electrical safety standards, set by the US Occupational Safety and Health Administration (OSHA), that manufacturers must ensure their commercial kitchen equipment and commercial restaurant equipment comply with:
- 29 CFR 1910 Subpart S
- 29 CFR 1926 Subpart K.
Be aware that to supply to the US, you will also need Food Equipment Sanitation Safety Certification – we can help you with that, too.
What does NSF’s Electrical Safety Testing Certification include?
When you choose NSF as your OSHA-approved certification body, you’ll be supported by our team of highly qualified and accredited electrical engineers, technical reviewers, auditors and a dedicated project manager who will take the time to understand your business and keep the project moving to ensure your go-to-market timelines are met.
Ready to begin your Electrical Safety Testing Certification journey with NSF?
Features and benefits of Electrical Safety Testing Certification from NSF
- Acceptance of Manufacturers Data (AMD): We’ll use your qualified in-house testing, analyses, and engineering evaluations as part of the certification process, saving time, reducing effort and speeding up compliance.
- Prototypes: Work with us from the earliest stages of product concept to ensure new designs and prototypes comply with regulatory requirements before you begin production, reducing your overall development costs and go-to-market timeline.
- Brand new innovation: We’ll evaluate all potentially relevant standards and develop and apply a test protocol for new product types, ensuring thorough coverage of hazards and performance expectations while reducing unnecessary testing.
- Field labelling: We’ll conduct a field evaluation to ensure electrical equipment is safe in its actual operating environment, verifying compliance with codes and standards, including NEC, NFPA 70, UL, and CSA, before issuing an NSF Field Evaluation label, accepted by AHJs and inspectors across North America.
- Full electrical safety testing: Our OSHA Nationally Recognised Testing Laboratory (NRTL) is part of our global network of laboratories, supporting businesses around the world. We’re also a Standards Council of Canada (SCC) accredited certification body, supporting businesses seeking to sell commercial food equipment into Canada.
We can test and certify the following commercial refrigeration standards:
- UL 60335-2-89 / CSA C22.2 No. 60335-2-89 - Commercial refrigerating appliances and ice-makers with incorporated or remote refrigerant units.
- UL 621 / CSA C22.2 No. 120 Commercial ice cream makers.
- UL 541 – Refrigerated vending machines.
- CSA C22.2 No. 128 Vending machines.
Steps to Electrical Safety Testing Certification
- 1
Apply
Submit your application and receive a quote.
- 2
Submit documents
Provide the required product documentation.
- 3
Sample selection
We'll select samples for evaluation.
- 4
Construction evaluation
We’ll perform an in-depth evaluation of your sample in detail against the standard.
- 5
Performance testing
Your product is tested to the standard requirements.
- 6
On-site audit
An NSF Auditor visits your production facility for the initial audit.
- 7
Certification
Your product appears in NSF’s online listing and ongoing annual maintenance of your certification begins.
NSF does it all
As well as the essential Electrical Safety Testing and Food Equipment Sanitation Safety Certifications, we’re also an EPA-recognised laboratory and certifier for ENERGY STAR® Star.
Did you know that you can bundle your certifications with NSF, reducing the number of samples required, lowering shipping costs, and cutting overall costs and turnaround times?
Discover all food equipment services
Why NSF?
When it really matters, make sure you work with the food equipment experts.
At NSF, we understand the complexity of meeting food safety, sanitation, and electrical compliance requirements while staying competitive. From the design phase to product launch, we act as your single service provider with a dedicated project manager, streamlining your journey to market with efficient processes, fast turnaround times, and clear guidance for added confidence.
Our deep connections across food service, hospitality, and retail industries give us a unique edge, providing specialised technical, regulatory, and industry expertise you can trust. Whether you’re moving from prototype to production, we help you deliver fully compliant food equipment you can confidently take to market.
Sanitation Safety Certification
Certify your commercial food equipment to the industry’s highest standards and know you’re meeting all applicable U.S. sanitation requirements.
ENERGY STAR® Certification
Demonstrate your company’s commitment to energy efficiency and environmental responsibility with an ENERGY STAR label.
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Ready to begin your Electrical Safety Testing Certification journey with NSF?
Get in touch today to arrange a kick-off call—or talk to us about transferring your existing certification to NSF.




