This act directs the Department of Transportation to establish an Advanced Air Mobility (AAM) interagency working group to plan and coordinate efforts related to the safety, infrastructure, physical security, cybersecurity, and federal investment necessary to bolster the AAM ecosystem, particularly passenger-carrying aircraft, in the United States. Advanced Air Mobility refers to an air transportation system that moves people and cargo between places using new aircraft designs that are integrated into existing airspace operations as well as operated in local, regional, intraregional, rural, and urban environments. Additionally, the Government Accountability Office must study and report to Congress on the interests, roles, and responsibilities of federal, state, local, and tribal governments affected by AAM aircraft and operations.