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Friday, March 16, 2012

North America UL Listing Mark


The UL Listing Mark is one of the most common UL Marks.  If a product carries this Mark, it means UL found that representative product samples met UL's safety requirements.  These requirements are primarily based on UL's own published standards for safety.  This type of Mark is seen commonly on appliances and computer equipment, furnaces and heaters, fuses, electrical panel boards, smoke and carbon monxide alarms, fire extinguishers and sprinkler systems, personal flotation devices, bullet resistant glass, electrical signs, and thousands of other products.

There are tree variations of UL's Listing Mark: one used on in the U.S., one used only in Canada and one for both the U.S. and Canada.  The C-UL Mark is applied to products for the Canandian market.  The products with this type of Mark have been evaluated to Canadian safety requirements, which may be somewhat different from U.S. safety requirements.  UL encourages those manufacturers with products certified for both countries to use this combined Mark, but they may continue using separate UL Marks for the U.S. and Canada.

The UL Listing Mark appears on end products and complete components suitable for factory and field installation.  All the products carrying a UL Listing Mark are covered by UL's Follow-Up Services program to verify that end products and componenets carrying the UL Listing Mark continue to be manufactured in compilance with UL's safety requirements.  A UL Listing Marking appearing on a product typically consists of four required elements:


  • "UL in a circle" symbol
  • Word "Listed"
  • Product name or company name/file number
  • Issue/serial number of alphanumeric control number

Razor Signs
972-514-SIGN

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