December 20, 2011
On Tuesday, December 20, 2011, the President signed into law:
H.R. 470, the "Hoover Power Allocation Act of 2011," which extends and amends the statutory allocation of hydroelectric power generated by the Hoover Dam, Nevada; and
H.R. 2061, the "Civilian Service Recognition Act of 2011," which authorizes the presentation of a United States flag on behalf of a Federal employee who dies of injuries incurred in connection with his or her employment.
Barack Obama, Statement by the Press Secretary on H.R. 470 and H.R. 2061 Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/309748