Welcome to the Nationally Recognized Testing Laboratory (NRTL) Program, which is a part of OSHA's Directorate of Technical Support and Emergency Management. The Program recognizes private sector organizations as NRTLs, and recognition signifies that an organization has met the necessary qualifications specified in the regulations for the Program. The NRTL determines that specific equipment and materials ("products") meet consensus-based standards of safety to provide the assurance, required by OSHA, that these products are safe for use in the U.S. workplace.

For purposes of meeting the NRTL product-approval requirements in OSHA standards, e.g., those under Subpart S of 29 CFR Part 1910, OSHA only accepts equipment or products approved by one of the NRTLs listed below. See the OSHA web pages for information on each NRTL's scope of recognition, or contact OSHA or the NRTL for additional information.

In Focus

• Expiration of Recognition of National Technical Systems, Inc
• Additional Topics and Information (includes link to NRTL SHIB)
• Organizations No Longer Recognized - Supplemental Information including response letters now available - 8/21/09
• OSHA Satellite Notification and Acceptance Program's (SNAP) Application Guidelines now available [46 KB PDF^*, 11 pages] (To obtain in Word, contact the NRTL Program) - 6/1/09

Organizations Currently Recognized by OSHA as NRTLs

• Canadian Standards Association (CSA)
  (also known as CSA International)
• Communication Certification Laboratory, Inc. (CCL)
• Curtis-Straus LLC (CSL)
• FM Approvals LLC (FM)
  (formerly Factory Mutual Research Corporation)
• Intertek Testing Services NA, Inc. (ITSNA)
  (formerly ETL)
• MET Laboratories, Inc. (MET)
• NSF International (NSF)
• QPS Evaluation Services Inc. (QPS)
• SGS U.S. Testing Company, Inc. (SGSUS)
  (formerly UST-CA)
• Southwest Research Institute (SWRI)
• TUV Rheinland PTL, LLC (TUVPTL)
• TÜV SÜD America, Inc. (TUVAM)
• TÜV SÜD Product Services GmbH (TUVPSG)
• TUV Rheinland of North America, Inc. (TUV)
• Underwriters Laboratories Inc. (UL)

Click on the NRTL name shown above to view its scope of recognition (the list of standards, sites, and programs that OSHA has recognized for the NRTL). See March 9, 1995, Federal Register notice for more detailed information about the programs that a NRTL may use. Also see the FAQs.

Options

• Satellite Notification and Acceptance Program (SNAP)
• Frequently Asked Questions (FAQs)
• Information on Submitting an Application
• Program Fees [126 KB PDF, 13 pages]. Most Recent Federal Register Notice Revising the Fees.
• Program Regulations (29 CFR 1910.7, including Appendix A)
• NRTL Program Policies, Procedures, and Guidelines (NRTL Directive - CPL 01-00-003 - CPL 1-0.3) [150 KB PDF, 70 pages].
• Additional Topics and Information
• Typical Registered Certification Marks of NRTLs
• Current List of NRTLs and Addresses
• Current List of Sites Recognized Under the NRTL Program
• Current List of Test Standards Recognized Under the NRTL Program (Page being updated - temporarily unavailable)
• Composite List of Test Standards No Longer Recognized (Page being updated - temporarily unavailable)
• Type of Products Requiring NRTL Approval
• Specific References to OSHA Standards Requiring NRTL Approval
• Organizations or Sites No Longer Recognized

If you need further information regarding the NRTL Program, please call (202) 693-2110, and ask to speak to the staff of the Program. Also, you can send an email to NRTL Program.

Accessibility Assistance: Contact the OSHA Directorate of Technical Support and Emergency Management at 202-693-2300 for assistance accessing PDF materials.

^*These files are provided for downloading.