Timothy K. Webster

Webster, Timothy K.


Washington, D.C. +1 202 736 8138

1501 K Street, N.W.
Washington, D.C. 20005
+1 202 736 8138

twebster@sidley.com twebster@sidley.com

Admissions & Certifications

Timothy K. Webster


TIMOTHY K. WEBSTER joined the firm’s Washington, D.C., office from the U.S. Department of Justice where he served as a Trial Attorney in the Environmental Enforcement Section. His practice includes both civil and criminal environmental matters, including challenges to government action and defense of enforcement matters, as well as regulatory advocacy and related compliance counseling. Mr. Webster has been involved in a variety of cases under the Clean Air Act, the National Environmental Policy Act, the Clean Water Act, and CERCLA, as well as “toxic tort” litigation. Finally, Mr. Webster also advises clients on food and drug-related matters where environmental issues are implicated, for example, under the Federal Insecticide, Fungicide, and Rodenticide Act.

On June 16, 2015, Mr. Webster was sworn in as the 44th President of the District of Columbia Bar. He served as President-Elect during the 2014–2015 term and will be President during the 2015–2016 term while remaining a partner at the firm. This “unified” bar is the mandatory licensing authority for all District of Columbia lawyers and has over 100,000 members. In addition, Mr. Webster served as pro bono General Counsel of the Bar from 2004–2010, advising the Bar on business matters and defending the Bar and its employees in litigation.

While at the University of Virginia School of Law, Mr. Webster served as editor-in-chief of the Virginia Environmental Law Journal. After graduating, he clerked for the Honorable John P. Wiese in the U.S. Court of Federal Claims in Washington, D.C. At Justice, Mr. Webster litigated complex civil enforcement cases brought under a variety of federal environmental statutes, including the Clean Air Act, CERCLA, the Clean Water Act, the Oil Pollution Act, among others.

Mr. Webster is listed in Who’s Who Legal, Chambers USA, The Best Lawyers in America, and Washingtonian magazine’s 2013 list of “Washington’s Best Lawyers.”

Recent Representations

  • A successful challenge to an EPA rulemaking under the Clean Air Act Title VI stratospheric ozone program before the D.C. Circuit;
  • A successful challenge to an EPA guidance document on the grounds that document had not been promulgated pursuant to notice and comment rulemaking before the D.C. Circuit;
  • Defense of a Clean Air Act citizen suit seeking to enjoin alleged construction of a power plant prior to the issuance of a Prevention of Significant Deterioration permit, resulting in a ruling for the defense after trial on a motion for a preliminary injunction;
  • Defense of a toxic tort litigation raising personal injury, wrongful death, medical monitoring and property damage claims related to alleged exposure to contaminants from a mining and manufacturing site;
  • Defense of a NEPA suit seeking to enjoin construction of a golf course, including the successful defense of a motion for a temporary restraining at an evidentiary hearing;Defense of a Clean Air Act citizen suit by two environmental advocacy groups alleging a variety of permit and regulatory violations at a coal-fired power plant, resulting in a favorable settlement;
  • Defense of a criminal Clean Air Act matter involving several industrial accidents, resulting in a plea; and
  • Defense of the District of Columbia Bar and individual employees in several suits, on abstention and other grounds, resulting in favorable decisions from the district court and the D.C. Circuit.
  • Timothy K. Webster, “New Justice Department Policy Calls For Prosecuting Individuals, Not Just Corporations, In Civil And Criminal Matters” American Bar Association, Environmental Enforcement and Crimes Committee Newsletter, January 2016
  • Timothy K. Webster, “In Drafting Our Laws, A Call for Short, Simple,” Washington Lawyer, January 2016
  • Timothy K. Webster, “Feting the Great Charter,” Washington Lawyer, December 2015
  • Timothy K. Webster, “Building a Fiscally Sound Future for the Bar,” Washington Lawyer, November 2015
  • Timothy K. Webster, “Teaching Leadership,” Washington Lawyer, October 2015
  • Timothy K. Webster, “It’s the Clients, Stupid,” Washington Lawyer, September 2015
  • Timothy K. Webster, “Carving Our Path Into the Future,” Washington Lawyer, July/August 2015
  • Timothy K. Webster, “Clean Air Act Enforcement Takes a Hit on Statute of Limitations Grounds,” American Bar Association, Environmental Enforcement and Crimes Committee Newsletter, August 2013
  • Timothy K. Webster & Justin W. Curtis, “Collateral Consequences Redux: Congress Raises the Bar on Companies Convicted of Felonies,” American Bar Association, Environmental Enforcement and Crimes Committee Newsletter, August 2013
  • Timothy K. Webster & James R. Wedeking, “Trends in Environmental Enforcement Against Animal Agriculture,” American Bar Association, Section of Environment, Energy, and Resources, 13th Section Fall Meeting, 2005
  • David B. Weinstein & Timothy K. Webster, “Federal Environmental Enforcement: Criminal, Civil, & Administrative – Broad Powers, Significant Consequences,” Florida Chamber Environmental Summer School, 2004
  • Timothy K. Webster, “The Future of the Chemical and Biological Weapons Conventions,” 16 Nat. Resources & Env’t 187, 2002
News & Achievements