This is one of the most common UL Marks. If a product carries this Mark, Underwriters Laboratories found that samples of this product 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 panelboards, smoke and carbon monoxide detectors, fire extinguishers and sprinkler systems, personal flotation devices like life jackets and life preservers, bullet resistant glass, and thousands of other products.
The CE Mark
The European Commission describes the CE mark as a "passport" that allows manufacturers to circulate industrial products freely within the internal market of the EU. The CE mark certifies that the products have met EU health, safety and environmental requirements that ensure consumer and workplace safety. All manufacturers in the EU and abroad must affix the CE mark to those products covered by the "New Approach" directives in order to market their products in Europe. Once a product receives the CE mark, it can be marketed throughout the EU without undergoing further product modification.
Most products covered by New Approach Directives can be self-certified by the manufacturer and do not require the intervention of an EU-authorized independent testing/certifying company (notified body). To self-certify, the manufacturer must assess the conformity of the products to the applicable directives and standards. While the use of EU harmonized standards is voluntary in theory, in practice the use of European standards is the best way to meet the requirements of the CE mark directives. This is because the standards offer specific guidelines and tests to meet safety requirements, while the directives, general in nature, do not.
The manufacturer may affix the CE mark to their product following the preparation of a declaration of conformity, the certificate which shows the product conforms to the applicable requirements. They must maintain a technical file to prove conformity. The manufacturer or their authorized representative must be able to provide this certificate together with the technical file at any time, if requested by the appropriate member state authorities.
