AThe United States Occupational Safety and Health Administration (or OSHA) requires that 38 different types of products, devices, assemblies, or systems used in the workplace be "approved" (i.e., tested and certified) by third-party organizations called '''Nationally Recognized Testing Laboratories (NRTLs). "Nationally Recognized Testing Laboratory'''" (or "NRTL") is a [[Unitedrecognition States]]given [[Occupationalby SafetyOSHA, andas Healthpart Administration]]of (OSHA)its designationNRTL givenProgram, to testing facilities acknowledging that an organization has the necessary qualifications to perform safety testing and certification of specific products covered within its scope to provide product safety testing and certification services to manufacturers for use of select types of products, devices, assemblies, or systems. The testing and certification are doneconducted toin accordance with U.S. consensus-based product safety test standards. These test standards are not developed or issued by OSHA, but are issued by U.S. standards organizations, such as the [[American National Standards Institute]] (ANSI). The range of products covered is limited to those items for which OSHA safety standards require "certification" by an NRTL.
OSHA, an agency of the [[United States Department of Labor|Department of Labor]], publishes a list of Nationally Recognized Testing Laboratories.
