Clean Water Act (CWA)

Recent Activity

Results are sorted by the date of most recent activity.

South Carolina Coastal Conservation League v. Regan

March 2, 2021

District of South Carolina grants stay in challenge to EPA’s Navigable Waters Protection Rule. As an intervenor in this case, the U.S. Chamber supported this outcome.

Environmental Integrity Project v. Regan

January 21, 2021

District of Columbia grants U.S. Chamber’s and business associations’ motion to intervene in challenge to EPA’s Navigable Waters Protection Rule.

South Carolina Coastal Conservation League v. Regan

October 19, 2020

U.S. Chamber and business intervenors file reply in support of EPA’s Navigable Waters Protection Rule. The U.S. Chamber is part of a group of business associations urging the District of South...

Northern Plains Resource Council v. U.S. Army Corps of Engineers

September 23, 2020

U.S. Chamber and business groups file amicus brief urging Ninth Circuit to reverse district court that applied the wrong standard when evaluating the U.S. Army Corps bases for issuing a nationwide...

Prairie Rivers Network v. Dynegy Midwest Generation, LLC

September 8, 2020

U.S. Chamber files amicus brief urging the Seventh Circuit to affirm lower court ruling that constituents discharged into groundwater are governed by the RCRA and state law, not the CWA.

South Carolina Coastal Conservation League v. Regan

August 24, 2020

U.S. Chamber and sixteen other associations, as intervenors, move for summary judgment urging the District of South Carolina to reject environmental groups’ challenge to the Navigable Waters...

State of Colorado v. EPA

August 14, 2020

U.S. Chamber and business associations file intervenors’ reply brief in defense of the “Navigable Waters Protection Rule” defining “Waters of the United States” under the Clean Water Act.

State of California v. Regan

August 13, 2020

Northern District of California rejects business and industry groups’ efforts to intervene to help defend the Navigable Waters Protection Rule (replacement definition of WOTUS), holding the groups...

State of Colorado v. EPA

July 16, 2020

U.S. Chamber and business associations file intervenors’ reply brief in defense of the “Navigable Waters Protection Rule” defining “Waters of the United States” under the Clean Water Act. ...

Environmental Integrity Project v. Regan

July 14, 2020

U.S. Chamber and business associations move to intervene in defense of the “Navigable Waters Protection Rule” defining “Waters of the United States” under the Clean Water Act.