Underwriters Laboratories® is an independent product
safety certification organization that has been testing products and writing standards for
safety for more than a century. UL evaluates more than 19,000 types of products, components, materials and systems annually with 21 billion UL Marks appearing on 72,000 manufacturers' products each year. UL's worldwide family of companies and
network of service providers includes 62 laboratory, testing and certification facilities serving customers in 99 countries.
