NRTL Directory

Nationally Recognized Testing Labs

OSHA-recognized laboratories for product safety testing and certification

Nationally Recognized Testing Laboratories (NRTLs) are organizations recognized by OSHA to test and certify products for workplace safety. These labs verify that equipment meets applicable safety standards before use in U.S. workplaces.

NRTL certification is required for many types of electrical and electronic equipment used in workplaces. Products tested by NRTLs carry certification marks (such as the UL, CSA, or ETL marks) indicating compliance with relevant safety standards.

Canadian Standards Association (CSA)

Cleveland, OH, United States

OSHA Docket: NRTL-2

UL 60950-1UL 1642UL 2054+1 more

Curtis-Straus LLC (CSL)

Canton, CT, United States

OSHA Docket: NRTL-8

UL 508UL 61010-1UL 1310

DEKRA Certification, Inc.

North Wales, PA, United States

OSHA Docket: NRTL-21

UL 61010-1UL 60950-1EN 60079

FM Approvals LLC

Norwood, MA, United States

OSHA Docket: NRTL-12

FM 3600FM 3610FM 3611+1 more

Intertek Testing Services NA, Inc. (ITSNA)

Arlington Heights, IL, United States

OSHA Docket: NRTL-4

UL 60950-1UL 508UL 61010-1+1 more

MET Laboratories, Inc.

Baltimore, MD, United States

OSHA Docket: NRTL-11

UL 508UL 61010-1UL 60950-1

MiCOM Labs

Montreal, QC, Canada

OSHA Docket: NRTL-15

UL 60950-1CSA C22.2 No. 60950-1

National Technical Systems (NTS)

Calabasas, CA, United States

OSHA Docket: NRTL-13

UL 61010-1UL 60950-1MIL-STD-810

NSF International (NSF)

Ann Arbor, MI, United States

OSHA Docket: NRTL-14

NSF/ANSI 2NSF/ANSI 61UL 197

QAI Laboratories, Ltd.

Burnaby, BC, Canada

OSHA Docket: NRTL-18

UL 1703UL 2703UL 61730

QPS Evaluation Services Inc.

Coquitlam, BC, Canada

OSHA Docket: NRTL-20

CSA C22.2UL 60950-1UL 508

SGS North America Inc.

Fairfield, NJ, United States

OSHA Docket: NRTL-16

IEC 60950-1IEC 61010-1IEC 60079

Southwest Research Institute (SwRI)

San Antonio, TX, United States

OSHA Docket: NRTL-17

UL 913FM 3600CSA C22.2 No. 157

TUV Rheinland of North America, Inc.

Eatontown, NJ, United States

OSHA Docket: NRTL-7

UL 60950-1IEC 62368-1UL 61010-1

TUV SUD America, Inc.

Peabody, MA, United States

OSHA Docket: NRTL-9

IEC 60601-1IEC 61010-1IEC 60950-1

UL LLC

Northbrook, IL, United States

OSHA Docket: NRTL-1

UL 60950-1UL 508UL 61010-1+2 more

Eurofins E&E North America, Inc.

Lebanon, PA, United States

OSHA Docket: NRTL-19

UL 61010-1UL 60950-1IEC 62368-1

Bureau Veritas Consumer Products Services Inc.

Amherst, NY, United States

OSHA Docket: NRTL-22

UL 60950-1IEC 62368-1UL 61010-1

PCTEST Engineering Laboratory, Inc.

Columbia, MD, United States

OSHA Docket: NRTL-10

UL 60950-1UL 62368-1

ULC Standards

Ottawa, ON, Canada

OSHA Docket: NRTL-3

CAN/ULC-S524CAN/ULC-S531CAN/ULC-S536

Element Materials Technology

Vancouver, WA, United States

OSHA Docket: NRTL-5

UL 61010-1IEC 60950-1IEC 62368-1

Nemko North America, Inc.

Carlsbad, CA, United States

OSHA Docket: NRTL-6

IEC 60950-1IEC 62368-1IEC 61010-1

Currently displaying 22 OSHA Nationally Recognized Testing Laboratories

Source: OSHA NRTL Program | Data verified against official OSHA records

Find the Right NRTL for Your Product

Different NRTLs are recognized for different test standards and product categories. Use our AI-powered matching tool to describe your product and get matched with the right testing laboratory for your certification needs.