Introduction 1

Federal Government Shutdowns 2

  Funding Lapses and Shutdowns 2

  Agency Planning and Preparation 3

    Federal Aviation Administration 4

    Transportation Security Administration 5

Funding of Aviation Programs and Operations 6

  FAA Operations and Programs 6

    Lapse in Authorization 7

    Lapse in Appropriations 7

  Transportation Security Administration Funding 8

Shutdown Impact on Civil Aviation 10

  Overall FAA Programs and Operations 10

    Air Traffic Control Operations 10

    Air Traffic Controller Hiring and Training 13

    Aviation Safety Oversight 14

  TSA Aviation Security Functions 15

  Airports, Airlines, and Related Businesses 17

    Partial Closures of Airport Terminals and Concourses During 2019 Shutdown 17

    Flight Delays and Temporary Flight Reductions During 2025 Shutdown 18

Potential Legislative Actions 19

  Legislative Proposals Focused on FAA 20

  Legislative Proposals Focused on TSA 20