William F. "Bill" Pedersen

William F. "Bill" Pedersen

Bill Pedersen Law

Recognized since 1989

Washington, District of Columbia

Practice Areas

Litigation - Environmental

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Bill Pedersen, senior counsel in the firm's Environment, Energy & Resources practice, is best known for his work on the Clean Air Act. He has been involved as a legislative and regulatory counselor, as a litigator, and as an expert witness in virtually every important Clean Air Act issue for the last 25 years, including new source review, Title V permits, amending air quality standards, hazardous air pollutant regulation, new source performance standards, fuels regulation, state implementation plans, the development and implementation of market based approaches, and enforcement of these provisions. Much of this work has been done on behalf of the forest products, petroleum, and natural gas transmission and distribution industries. Congress has twice written suggestions in Bill's law review articles into the Clean Air Act.As a member of the Breaking the Logjam Project, Bill is taking a lead role in developing analytical support for the next round of Clean Air Act amendments, which will largely focus on simplifying the statute to obtain additional emission reductons - possibly including greenhouse gas reductions - at less cost. . Bill is also known as an innovative author and practitioner in environmental law and administrative law generally. He has extensive practice experience under RCRA, CERCLA and the Clean Air Water Act. Prior to joining Perkins Coie, Bill served as Deputy General Counsel and Associate General Counsel for Air and Radiation at the Environmental Protection Agency before becoming a partner at Shaw Pittman. Pedersen earned his law degree, cum laude, from Harvard Law School. He earned his undergraduate degree, magna cum laude, from Harvard College.

Contact & Links


  • 111 Fourth Street, NE
    Washington, DC 20002

Bar Admissions

  • District of Columbia, The District of Columbia Bar

Federal Clerkships

  • United States Court of Appeals

Recognized in The Best Lawyers in America® 2023 for work in:

  • Litigation - Environmental

Special Focus

  • Administrative/Regulatory
  • Clean Air Act
  • Clean Water Act
  • Climate Change
  • Counseling
  • Government Relations
  • International
  • Litigation
  • Permitting
  • RCRA/Hazardous Waste


  • Lecturer in Law, Harvard Law School 1985
  • Visiting Professor, University of Michigan Law School, 1997 - 1998 Academic Year
  • Listed in Washington D.C. Super Lawyers
  • Listed in The International Who's Who of Business Lawyers: Environment

Other Court Admissions

  • U.S. Supreme Court
  • U.S. Court of Appeals for the District of Columbia Circuit
  • U.S. District Court for the District of Columbia

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