Waters of the United States (WOTUS) : repealing and revising the 2015 Clean Water Rule

Cooperative federalism under the Clean Air Act : state perspectives : hearing before the Subcommittee on Clean Air and Nuclear Safety of the Committee on Environment and Public Works, United States Senate, One Hundred Fifteenth Congress, second session, April 10, 2018

The Clean Water Act after 37 years recommitting to the protection of the nation's waters, statement of Wade T. Najjum, Assistant Inspector General for Program Evaluation before the Committee on Transportation and Infrastructure, U.S. House of Representatives

WRDA 2016 : infrastructure, lead, and other Safe Drinking Water Act provisions in H.R. 5303 and S. 2848

Key activities in EPA's integrated urban air toxics strategy remain unimplemented

The Clean Water Act after 37 years recommitting to the protection of the nations' waters : hearing before the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Eleventh Congress, first session, October 15, 2009

Federal regulation of chemicals in commerce: an overview of issues for the 113th Congress

Landowner protections under CERCLA

Water quality issues in the 112th Congress : oversight and implementation

Strengths and weaknesses of regulating greenhouse gas emissions using existing Clean Air Act authorities hearing before the Subcommittee on Energy and Air Quality of the Committee on Energy and Commerce, House of Representatives, One Hundred Tenth Congress, second session, April 10, 2008