[Congressional Record Volume 159, Number 62 (Monday, May 6, 2013)]
[House]
[Page H2437]
From the Congressional Record Online through the Government Publishing Office [www.gpo.gov]

            By Ms. TSONGAS:
        H.R. 1840.
        Congress has the power to enact this legislation pursuant 
     to the following:
       Amendment XVI to the United States Constitution.