Aren’t manufacturers required to use UL for their compliance testing? Isn’t this mandated by the standards themselves?

The simple answer to both questions is “no.” In fact, this misconception has misled many manufacturers to believe that they don’t have a choice in their third-party testing partner. To satisfy the prerequisite of having your products tested by an independent organization, the true legal requirement is that the laboratory which performs the testing be a Nationally Recognized Testing Laboratory (NRTL) recognized by OSHA. Intertek is recognized worldwide as a competent testing, inspection, and certification organization, and our ETL Listed Mark serves as proof of product compliance with U.S. standards.