We are a member of:
Door & Hardware Institute (DHI)
NAAMM (National Association of Architectural Metal Manufacturers)
HMMA Division (Hollow Metal Manufacturer's Association)

Other Web Site Links of General Interest to the Industry:

• ADA INFORMATION
• AREA CODES (for phones)
• AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)
• ANEMOSTAT (Vision Lites and Louvers) 
• ARCAT-Listing of building products
• ARCHITECTURAL TESTING INC (Sound Testing)
• BUILDERS HARDWARE MANUFACTURERS ASSOC (BHMA)
• CONSTRUCTION SPECIFICATION INSTITUTE (CSI)
• DHI (Door & Hardware Institute)
• 4-SPECS
• KARP ACCESS DOORS - NY (phone: 718-784-2105) (Not related to Karpen Steel!!)
• NAAMM / HMMA
• NATIONAL GUARD PRODUCTS (Vision Lites and Louvers)
• NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)
• RIVERBANK ACOUSTICAL (Sound Testing Laboratory) 
• STEEL DOOR INSTITUTE
• SWEETS--DIV MCGRAW HILL
• TECHNICAL GLASS (FIRELITE)
• THE BLUE BOOK OF BLDG & CONSTRUCTION
• UNDERWRITERS LABORATORIES (UL Fire Testing)
• UNITED STATE POST OFFICE (for Zip Codes)
• UNITED STATES ZIP CODES
• ZERO INTERNATIONAL (Sound Seal Hardware)