Introduction to UL Certification
UL is the abbreviation of Underwriter Laboratories Inc. As one of the most authoritative independent safety testing organizations in the United States and worldwide, UL is a non-profit professional institution dedicated to public safety. It adopts scientific testing methods to evaluate potential hazards of materials, devices, equipment and buildings to human life and property. UL develops and issues relevant standards and technical documents to reduce safety risks, focusing on product safety certification and safety compliance verification. Committed to delivering safe products to the market, UL eliminates technical trade barriers and promotes global trade development.
Founded in 1894, UL was initially funded by fire insurance agencies and became fully independent in 1916. With a century of development, UL has grown into a globally renowned certification body with complete management systems, standard development procedures and product certification rules. Governed by a council composed of safety experts, government officials, consumers and industry representatives, UL operates five laboratories across the United States, headquartered in Northbrook, Chicago, with additional branches in Taiwan and Hong Kong.
UL standards cover nearly all product categories and serve as the core basis for safety assessment. UL has published more than 800 standards, 70% of which are adopted by ANSI as American national standards.






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