http://www.intertek.com/marks/etl/
The ETL 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 because it gives them a competitive advantage in the marketplace.
Today, the ETL mark is featured on millions of products sold by major retailers.