Nationally Recognized Testing Laboratory (NRTL)

As an OSHA Recognized NRTL in the U.S., Intertek is able to test and certify products for its customers.

Once OSHA created the NRTL program in 1988, Intertek (known as “Electrical Testing Laboratories” or “ETL” at the time) was quick to gain recognition and began certifying products on behalf of its worldwide clients in 1989.

Today, Intertek has 14 test laboratories across North America, Europe and Asia that are formally recognized as NRTL sites, plus an additional 22 laboratories that are qualified to test products for United States certification under the umbrella of our headquarter NRTL site in Arlington Heights, IL.

In total, Intertek provides 36 testing laboratories around the world to provide fast, local service to its customers. To learn more about our global accreditations, contact or call +1-800-WORLD-LAB (967-5352).

NRTL Test Sites

North America:

Arlington Heights, Illinois
Cortland, New York
Duluth, Georgia
Menlo Park, California
Boxborough, Massachusetts
Coquitlam, BC, Canada
Lake Forest, CA
Middleton, Wisconsin
Oakdale, Minnesota
Fairfield, NJ
Lexington, Kentucky
Plano, Texas


Kista, Stockholm, Sweden


Kowloon, Hong Kong
Additional Qualified Test Sites

North America:

Columbus, Ohio
Detroit, Michigan
Grand Rapids, Michigan
Mexico City, Mexico
Mississauga, Canada
Montreal, Canada
Portland, Oregon
San Antonio, Texas


Kaufbeuren, Germany
Leatherhead, UK
Paris, France
Udine, Italy
Wiesbaden, Germany


Tokyo, Japan
Bangkok, Thailand
Guangzhou, China
Hangzhou, China
New Delhi, India
Seoul, Korea
Shanghai, China
Shenzhen, China
Taipei, Taiwan

Need help or have a question?

+1 800 967 5352
+44 1372 370900
+55 11 2842 0444
+86 400 886 9926
+31 88 126 8888
+49 711 27311 152
+971 4 317 8777