Nationally Recognized Testing Laboratories

A Nationally Recognized Testing Laboratory is a testing facility recognized by OSHA as primarily private sector organizations that provide product safety testing and certification services to manufacturers. The testing and certification are done, for purposes of the Program, to U.S. consensus-based product safety test standards. These test standards are not developed or issued by OSHA, but are issued by U.S. standards organizations, such as the American National Standards Institute (ANSI). The range of products covered by the Program is limited to those items for which OSHA safety standards require "certification" by an NRTL.
OSHA, an agency of the United States Department of Labor, publishes a list of Nationally Recognized Testing Laboratories (NRTLs). The testing laboratories test products and certify if they pass standards tests.

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)
• Electrical Reliability Services, Inc. (ERS) (also known as eti Conformity Services and formerly Electro-Test, Inc. (ETI))
• FM Approvals LLC (FM) (formerly Factory Mutual Research Corporation)
• Intertek Testing Services NA, Inc. (ITSNA) (formerly ETL)
• MET Laboratories, Inc. (MET)
• NSF International (NSF)
• National Technical Systems, Inc. (NTS)
• QPS Evaluation Services, Inc. (QPS)
• SGS U.S. Testing Company, Inc. (SGSUS) (formerly UST-CA)
• Southwest Research Institute (SWRI)
• Technischer Überwachungsverein (TÜV)
• Underwriters Laboratories Inc. (UL)
• Wyle Laboratories, Inc. (WL)

References

• "Nationally Recognized Testing Laboratories @ OSHA website". http://www.osha.gov/dts/otpca/nrtl/index.html#nrtls. Retrieved 2009-01-09. 
• "OSHA Directive CPL 1-0.3". http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=DIRECTIVES&p_id=2004. Retrieved 2009-10-23.