March 30, 2009
On Monday, March 30, 2009, the President signed into law: H.R. 1512, the "Federal Aviation Administration Extension Act of 2009," which extends through September 30, 2009, authorities to: collect taxes that fund the Airport and Airway Trust Fund; make expenditures from the Airport and Airway Trust Fund; and make grants to airports under the Airport Improvement Program.
Barack Obama, Statement by the Press Secretary on H.R. 1512 Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/289598