Department of Transportation Office of Inspector General

Built World

As of May 2026: Conducting ongoing audits of FAA's IIJA grant oversight

For five years, the largest airport-funding program in American history pumped roughly $3 billion a year into runways, terminals, and taxiways at more than 3,300 airports. In December 2025, the FAA released the final round: $2.89 billion in Airport Infrastructure Grant allocations for 2026 and approximately $1 billion for the last Airport Terminal Program competition, with no successor program planned.

Updated May 29