UL stands for Underwriter Laboratories, which is a third-party certification company that certifies products to make the world a safer place for both workers and consumers. UL certification means that a product has been tested by UL to nationally recognized safety and sustainability standards and has been found to meet specific, defined requirements. UL Listed is a certification mark that means a product has been tested by UL and found to meet ULs nationally recognized safety standards for a specific category of equipment. UL Listed is used for consumer-ready products that go to market, while UL Recognized is used for components. UL Classified is another mark that UL uses to classify products based on certain properties of the product. UL certification is important because it ensures the safety and longevity of many household items under normal wear and tear with everyday use, benefiting both the consumer and the business. UL listing is recognizable to consumers and is commonly found on everyday household items such as heaters, smoke detectors, and electrical appliances.