2023 Edition www.amca.org THE ONLY MAGAZINE DEDICATED TO THE AIR MOVEMENT & CONTROL INDUSTRY Dawn of a New Era: The Regulation of Commercial and Industrial Fans and Blowers U.S. Regulations for Air-Circulating Fans Maintaining Indoor-Air Quality with Air Curtains Mitigating Environmental Noise from the Operation of Mechanical Equipment Selecting Ceiling Radiation Dampers I WANTWA YOUYO TO HAVE AN ENERGY-EFFICIENT FAN Supplement to ASHRAE Journalhttp://www.amca.org