Certification Marks
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ETL Verified An electrical, mechanical or electro-mechanical product bearing the ETL Verified mark is proof that it was tested and complies with the minimum requirements of a prescribed industry standard. As each industry standard's testing criteria and follow-up provisions vary, consult with the administration association for specific program requirements. The ETL Verified mark is widely used in the cabling products industry as evidence of compliance with a number of its association testing programs.

ETL Listed An electrical, mechanical or electro-mechanical product bearing the North American ETL Listed mark signifies that it was tested and meets the minimum requirements of prescribed product safety standards. Moreover, the mark indicates that the manufacturer's production site conforms to a range of compliance measures and is subject to periodic follow-up inspections to verify continued conformance. A product bearing the ETL Listed mark with the "us" identifier at the 4 o'clock position has been tested and deemed compliant to U.S. product safety standards only. An ETL Listed mark with a "c" identifier at the 8 o'clock position means the product bearing it complies with Canadian product safety standards only. And an ETL Listed mark with both "us" and "c" identifiers at the 4 o'clock and 8 o'clock positions respectively, signifies that the product bearing the mark complies with both U.S. and Canadian product safety standards. Download this mark.

Warnock Hersey Building material bearing Intertek's Warnock Hersey Listed mark indicates that it was tested and meets the minimum requirements of the prescribed product safety standards. What's more, the mark indicates that the manufacturer's production site conforms to a range of compliance measures and is subject to periodic follow-up inspections to verify continued conformance. A product bearing the Warnock Hersey Listed mark with the "us" identifier at the 4 o'clock position has been tested and deemed compliant to U.S. product safety standards only. A Warnock Hersey Listed mark with a "c" identifier at the 8 o'clock position means the product bearing it complies with Canadian product safety standards only. And a Warnock Hersey Listed mark with both "us" and "c" identifiers at the 4 o'clock and 8 o'clock positions, respectively, signifies that the product bearing the mark complies with both U.S. and Canadian product safety standards. The Warnock Hersey Listed mark appears on a host of non-electrified building materials including, but not limited to, metal and wood fire doors, roofing materials, curtain walls, and door hardware and locking mechanisms. Download this mark.

GS mark An electrical, mechanical or electro-mechanical product bearing the GS mark indicates that it was tested and complies with the minimum requirements of the German Device Safety Act (a.k.a., GSG). The GS mark is a licensed mark of the German government, which may only be issued by an accredited product safety testing and certification agency. Intertek is authorized to issue the GS mark. A GS mark issued by Intertek will carry the "INTERTEK" corporate identifier in the upper left-hand corner of the mark. Download this mark.

S mark An electrical, mechanical or electro-mechanical product bearing the S mark signifies that it was tested and meets the minimum requirements of prescribed and harmonized European Union product safety standards. Download this mark.