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Applied Research Laboratories, Inc. (ARL) (recognition terminated effective 1/28/08) |
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The abbreviation "NRTL" must appear below the ARL mark. |
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Canadian Standards Association (CSA) |
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Marks above used for products meeting only U.S. standards |
Marks above used for products meeting both U.S. and Canadian standards |
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Mark above used for gas-fueled products meeting U.S. standards2 |
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Canadian Standards Association (CSA)(mark formerly used by the American Gas Association (AGA), exclusively licensed to CSA until June 30, 2001) |
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Communication Certification Laboratory, Inc. (CCL) |
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Curtis-Straus LLC (CSL) |
Marks below used for products meeting only U.S. standards (see note) |
Mark below used for products meeting both U.S. and Canadian standards (see note) |
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Original mark (use allowed until May 1, 2010) |
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Electrical Reliability Services, Inc. (ERS) (also known as eti Conformity Services and formerly Electro-Test, Inc. (ETI)) (recognition terminated effective 6/23/08) |
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Entela, Inc. (Voluntary termination effective 1/28/08 - acquired by the parent company of ITSNA) |
Entela marks are now being used by ITSNA. See ITSNA marks below. |
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FM Global Technologies LLC (FM) (also known as FM Approvals and formerly Factory Mutual Research Corporation) |
Mark below used for products meeting only U.S. standards |
Mark below used for products meeting both U.S. and Canadian standards |
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Intertek Testing Services NA, Inc. (ITSNA) (formerly ETL Testing Laboratories, Inc.) |
Marks below used for products meeting only U.S. standards |
Marks below used for products meeting both U.S. and Canadian standards |
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(Note: In 2004, Entela, Inc., was acquired by the parent company of ITSNA.) |
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Mark above used for products meeting only U.S. standards |
Mark above used for products meeting both U.S. and Canadian standards |
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MET Laboratories, Inc. (MET) |
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Mark above used for products meeting only U.S. standards Commenced use - January 2006) |
Marks above used for products meeting both U.S and Canadian standards (Commenced use - January 2006) |
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Mark above used for products meeting both U.S. and Canadian standards (original MET mark) |
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NSF International (NSF) |
Mark below used for products meeting only U.S. standards Use to expire 12/31/2012 |
Mark below used for products meeting both U.S. and Canadian standards Use to expire 12/31/2012 |
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Mark below used for products meeting only U.S. standards |
Mark below used for products meeting both U.S. and Canadian standards |
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National Technical Systems, Inc. (NTS) |
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SGS U. S. Testing Company, Inc. (SGSUS) (formerly U.S. Testing Company, Inc.) |
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Southwest Research Institute (SWRI) |
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TUV America, Inc. (TUVAM) |
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Use to commence in early 2008 (see note) |
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TUV Product Services GmbH (TUVPSG) |
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Use to commence in early 2008 (see note) |
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TUV Rheinland of North America, Inc. (TUV) |
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Mark above used for products meeting only U.S. standards |
Mark above used for products meeting both U.S. and Canadian standards |
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NRTL previously used mark above but ceased authorizing on or about January 2000. |
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Underwriters Laboratories Inc. (UL) |
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Marks below used for products meeting only U.S. standards |
Marks below used for products meeting both U.S. and Canadian standards |
Basic marks |
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Equivalent to above |
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"Used on products which UL has evaluated for specific properties, a limited range of hazards, or suitability for use under limited or special conditions. Typically, products Classified by UL fall into the general categories of building materials and industrial equipment." Examples: fire doors, protective gear for fire fighters, industrial trucks. |
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Wyle Laboratories (WL) |
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