President George W. Bush signed the No Child Left Behind Act (NCLB; P.L 107-110; 115 Stat. 1425) on January 8, 2002.  NCLB is a reauthorization of the Elementary and Secondary Education Act of 1965 (ESEA).  

The original ESEA was 32 pages long; NCLB —at the time of enactment— was 670 pages long.