February 10, 2012
On Friday, February 10, 2012, the President signed into law:
H.R. 3801, the "Ultralight Aircraft Smuggling Prevention Act of 2012," which defines the term "aircraft" for purposes of determining violations under Federal aviation smuggling laws; and specifies that the definition includes "ultralight aircraft."
Barack Obama, Statement by the Press Secretary on H.R. 3801 Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/309784