
Air Movement & Control Association International, Inc.
The Air Movement and Control Association International (AMCA) is a international association of air system equipment manufacturers primarily fans, louvers, dampers, and air curtains used in commercial buildings and industrial processes.
Underwriters Laboratories
UL is a global independent safety science company offering expertise across five key strategic businesses: Product Safety, Environment, Life & Health, Verification Services and Knowledge Services. Our breadth, established objectivity and proven history mean we are a symbol of trust and enable us to help provide peace of mind to all.