Global Certification

No.1 of certification consulting performance in Korea, the consulting institution registered at the MSS



The Occupational Safety and Health Administration (OSHA) was established as part of a system to protect the public from products used in the United States. Initially, OSHA entrusted two institutions to carry out safety-related testing and certifications. However, with the growth of the US economy and its industry, the workload dealing with occupational safety and health-related issues skyrocketed, leading to greater demand for various improvements. Accordingly, pursuant to Article 29, Paragraph 1910.7 of the US Federal Regulations (CFR), OSHA expanded the list of Nationally Recognized Testing Laboratories (NRTLs) to include 17 domestic and international institutions in 1998.



Role of NRTL

  1. 1. OSHA accredits Nationally Recognized Testing Laboratories (NRTLs).
  2. 2. Each NRTL tests and certifies whether products and components (materials) conform to safety standards.
  3. 3. Products and components are certified, registered, and labeled.
  4. 4. The US Standard Organization approves product safety standards.

Current List of NRTLs

  1. 1. OSHA accredits Nationally Recognized Testing Laboratories (NRTLs).
  2. 1. TUV Product Services GmbH (TUVPSG)
  3. 2. TUV America, Inc. (TUVAM)
  4. 3. Applied Research Laboratories, Inc. (ARL)
  5. 4. Canadian Standards Association (CSA)
  6. 5. Communication Certification Laboratory, Inc. (CCL)
  7. 6. Curtis-Straus LLC (CSL)
  8. 7. Electrical Reliability Services, Inc. (ERS)
    (also known as eti Conformity Services and formerly Electro-Test, Inc. (ETI))
  9. 8. Entela, Inc. (ENT)
  10. 9. FM Global Technologies LLC (FM) 
    (also known as FM Approvals and formerly Factory Mutual Research Corporation)
  11. 10. Intertek Testing Services NA, Inc. (ITSNA) (formerly ETL)
  12. 11. MET Laboratories, Inc. (MET)
  13. 12. NSF International (NSF)
  14. 13. National Technical Systems, Inc. (NTS)
  15. 14. SGS U.S. Testing Company, Inc. (SGSUS) (formerly UST-CA)
  16. 15. Southwest Research Institute (SWRI)
  17. 16. TUV Rheinland of North America, Inc. (TUV)
  18. 17. Underwriters Laboratories Inc. (UL)
  19. 18. Wyle Laboratories, Inc. (WL)


NRTL testing process

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