Clean Water Act (CWA)search for term
The act passed by the US Congress to control water pollution. Formally, the Federal Water Pollution Control Act (or Amendments) of 1972 and all subsequent amendments. [(P.L. 92-500), 33 U.S.C. 1251 et. seq., as amended by: P.L. 96-483; P.L. 97-117; P.L. 95-217, 97-117, 97-440, and 100-04.]