Underwriters Laboratories (UL) is a global safety certification organization that tests and certifies products to ensure they meet specific safety standards. Founded in 1894, UL evaluates a wide range of items, including electrical appliances, building materials, and personal protective equipment. Their certification mark is recognized worldwide, indicating that a product has been rigorously tested for safety. UL also conducts research and education on safety issues, helping manufacturers improve their products and processes. By providing safety standards and testing services, UL plays a crucial role in protecting consumers and promoting safe practices across various industries.