Field Evaluation for USA
In the USA, testing laboratories recognized by the local Authority Having Jurisdiction are qualified to offer Field Evaluation services. In addition to being an NRTL, QPS is also recognized in several state and local jurisdictions, and is also one of only two laboratories accredited by IAS (International Accreditation Service) specifically as a Field Evaluation Body.
The technical requirements used to evaluate products for the US market consist of the applicable parts of the National Electrical Code (NEC) and other requirements specified by the AHJ.
Complying products are labeled using the QPS label.