Federal Aviation Administration sustainment work and facilities replacements are for replacing Federal Aviation Administration-owned terminal and route air traffic control facilities; improvement of air route and terminal facilities; workplace safety and environmental standards compliance; Federal Aviation Administration-owned fuel storage tank replacement and management; unstaffed infrastructure sustainment; real property disposition; electrical power system sustain and support; energy maintenance and compliance; hazardous materials management and environmental cleanup; facility security risk management; mobile asset management program; and administrative expenses, including salaries and expenses, administration, and oversight.

Capital improvements for Federal Aviation Administration-owned and maintained facilities. The work will be awarded to commercial vendors on contract vehicles as well as with Federal Aviation Administration internal resources. Can be used for Terminal and En Route Staffed facilities that are directly manage air traffic control operations. Can also be used for sustainment activities at Federal Aviation Administration-owned unstaffed facilities and supporting infrastructure such as power systems, fuel storage tanks, facilities security risk management, environmental activities at Federal Aviation Administration-owned facilities, sustainment of Long-Range Radar facilities, and sustainment of mobile air traffic control facilities. Replacement of Federal Aviation Administration-owned Terminal and En Route facilities are eligible.

Each project has its own planning cycle and individual milestones. The overarching program millstones are the annual funding allocations and required spending plans as defined by the Bipartisan Infrastructure Law.