Safety Bulletin

Operations at Non-Towered Airports due to ATC Zero Conditions

Jan 15, 2021


As the COVID-19 pandemic continues to impact flight operations, ALPA, International have issued an Operations Bulletin concerning temporary reduced controller staffing or shut down at ATC facilities. The status of the facility during a closure is known as “ATC Zero.” When an Air Traffic Control Tower (ATCT) is ATC Zero, the airport remains open, but the airport reverts to non-towered operations and the airspace usually becomes Class G (uncontrolled) airspace.