Become a Member Annual Photoluminescent Safety Conference About Photoluminescent Products Photoluminescent Safety Association Frequenty Asked Questions

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Q. What is an NRTL?

A. NRTL stands for Nationally Recognized Testing Laboratory. OSHA, Occupational Safety and Health Administration has recognized certain testing facilities that provide product safety testing and certification services to manufacturers, e.g., in compliance with photoluminescence-related standards such as UL924 for code-compliant EXIT signs and UL1994 for code-compliant Egress Path Marking Systems. You find a list of OSHA approved NRTLs at

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The Photoluminescent Safety Association (PSA) is a trade association dedicated to generating broad-based acceptance of safety-grade photoluminescent products.

Click here to See a List of Codes Mandating the Use of Photoluminescent Products


See a List of Our Members Here


Who Should Join the PSA?

If you:

  • manufacture, sell, or market safety-grade photoluminescent products;
  • write, implement or participate in the writing of building, personal, vehicular and other safety codes and standards;
  • are responsible for getting people out of buildings, tunnels, trains, buses, airplanes, ships, oil rigs and other structures safely in an emergency; or,
  • are a first-responder or fire safety official,

Then you belong in this association.