In October, the Federal Aviation Administration (FAA) issued an emergency order revoking the air carrier certificate of one of the nation’s largest on-demand air taxi operators, AMI Jet Charter, Inc. (AMIJC), alleging that it failed to exercise operational control over its flights and citing an immediate risk to aviation safety. The revocation followed a seven-month investigation of operational control at AMIJC and came one week after the agency suspended AMIJC’s certificate, also on an emergency basis.