The ETL, Edison Testing Laboratories, Listed Mark is proof of product compliance (electrical, gas and other safety standards) to North American safety standards. Authorities Having Jurisdiction (AHJ’s) in 50 states and Canada and retailers accept the ETL Listed Mark as proof of product safety. Manufacturers are choosing ETL certification because it gives them a competitive advantage in the marketplace. Today, the ETL Listed Mark is featured on millions of products sold by major retailers. The product with ETL extract transform Listed Mark from certified by ITS. This certification mark indicates that the product has been tested to and has met the minimum requirements of a widely recognized U.S product safety standard, that the manufacturing site has been audited, and that the applicant has agreed to a program of periodic factory follow-up inspections to verify continued performance.