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Current List of NRTLs


The following organizations have been recognized by OSHA in accordance with 29 CFR 1910.7 to test and certify equipment or materials (products) requiring approval by certain OSHA safety standards:

Canadian Standards Association (CSA)
(also known as CSA International)

  • 416-747-4000
  • 178 Rexdale Boulevard
  • Etobicoke (Toronto), Ontario M9W 1R3
  • Canada

Communication Certification Laboratory, Inc. (CCL)
(DBA Nemko-CCL, Inc.)

  • 801-972-6146
  • 1940 West Alexander Street
  • Salt Lake City, Utah 84119

Curtis-Straus LLC (CSL)

  • 978-486-8880
  • Littleton Distribution Center
  • One Distribution Center Circle, Suite #1
  • Littleton, MA 01460
  • Email

FM Approvals LLC (FM)
(formerly Factory Mutual Research Corporation)

  • 781-762-4300
  • 1151 Boston-Providence Turnpike
  • P.O. Box 9102
  • Norwood, Massachusetts 02062

Intertek Testing Services NA, Inc. (ITSNA)
(formerly ETL Testing Laboratories, Inc.)

  • 800-345-3851
  • 3933 U.S. Route 11
  • Cortland, New York 13045

MET Laboratories, Inc. (MET)

  • 410-354-3300
  • 914 West Patapsco Avenue
  • Baltimore, Maryland 21230
  • Email

NSF International (NSF)

  • 800-673-6275
  • 789 Dixboro Road
  • Ann Arbor, Michigan 48105
  • Email

QPS Evaluation Services Inc. (QPS)

  • 416-241-8857
  • 81 Kelfield Street, Unit 8
  • Toronto, Ontario, M9W 5A3
  • Canada

SGS North America, Inc. (SGS)
(formerly SGS U.S. Testing Company, Inc.)

  • 770-570-1800
  • 620 Old Peachtree Road
  • Suite 100
  • Suwanee, Georgia 30024
  • Email

Southwest Research Institute (SWRI)

  • 210-684-5111
  • 6220 Culebra Road
  • Post Office Drawer 28510
  • San Antonio, Texas 78228

TÜV SÜD America, Inc. (TUVAM)

  • 978-739-7000
  • 5 Cherry Hill Drive
  • Danvers, Massachusetts 01923
  • Email

TÜV SÜD Product Services GmbH (TUVPSG)

  • 49-89-5008-4335
  • Ridlerstrasse 65, D-80339
  • Munich, Germany

TUV Rheinland of North America, Inc. (TUV)

  • 203-426-0888
  • 12 Commerce Road
  • Newtown, Connecticut 06470

TUV Rheinland PTL, LLC (TUVPTL)

  • 480-966-1700
  • 2210 South Roosevelt Street
  • Tempe, Arizona 85282

Underwriters Laboratories Inc. (UL)

  • 847-272-8800
  • 333 Pfingsten Road
  • Northbrook, Illinois 60062
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