Door and Hardware Institute / DHI

   Hollow Metal Manufacturers Association / HMMA

   National Association of Architectural Metal Manufacturers / NAAMM

   Steel Door Institute / SDI

   American Architectural Manufacturers Association / AAMA

   American National Standards Institute / ANSI

   American Society for Testing and Materials / ASTM

   International Conference of Building Officials / ICBO

   Americans with Disabilities Act / ADA

   National Fire Protection Agency / NFPA

   Intertek Testing Services / Warnock Hersey

   Underwriters Laboratories / UL

   American Institute of Architects / AIA

   Construction Specifications Institute / CSI