Below are some valuable websites for your reference.
Allegion
American Architectural Manufacturers Association (AAMA)
AD Systems
American Institute of Architects (AIA)
Anemostat
Building Code Discussions Group
California State Fire Marshall
Canadian Glass Association
Door & Hardware Institute
International Code Council
National Fire Protection Association (NFPA)
National Glass Association with GANA
Pilkington
Republic Doors and Frames
Steel Door Institute
Steelcraft
Underwriters Laboratories (UL)