To receive the Electrical Testing Laboratories, or ETL, mark, a product must prove its compliance to North American consumer safety standards and pass inspection by a Nationally Recognized Testing Laboratory, or NRTL. To... More »

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ETL listing means that Intertek has determined a product meets ETL Mark safety requirements.. UL listing means that Underwriters Laboratories has determined a product meets UL Mark safety requirements. Silk-screened on p... More »

Products bearing either an ETL mark or a UL mark have been certified by a Nationally Recognized Testing Laboratory, or NRTA, as compliant with the relevant minimum safety standards for that product. NRTLs are certified b... More »

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Products bearing either an ETL mark or a UL mark have been certified by a Nationally Recognized Testing Laboratory, or NRTA, as compliant with the relevant minimum safety standards for that product. NRTLs are certified b... More »

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ETL listing means that Intertek has determined a product meets ETL Mark safety requirements.. UL listing means that Underwriters Laboratories has determined a product meets UL Mark safety requirements. Silk-screened on p... More »

Warnock Hersey is a mark used in North America to indicate compliance with building codes and safety standards on construction sites. The symbol is commonly found on wood fire-rated doors. More »

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NSF International and Underwriter's Laboratories, or UL, are separate organizations dedicated to safety standards in a variety of fields. NSF International is an independent third-party nonprofit specializing in public h... More »

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