David Flannery

Steptoe & Johnson PLLC

$ $$$

Virginia Street East 707
Charleston 25301 WV US

David M. Flannery has focused his practice in the areas of environmental and energy law. Ranked as one of the leading lawyers in America in these areas, Flannery is a member of the American College of Environmental Lawyers and a Commissioner to the Ohio River Valley Water Sanitation Commission (ORSANCO).

He has authored numerous articles for industry and trade publications and is often requested to speak on relevant and timely environmental topics both regionally and nationally. His unique combination of business acumen, technical background, and litigation experience make Flannery a valuable resource for clients faced with energy, environmental and regulatory issues, including facility siting.


  • Principal industry negotiator in the development of state hazardous waste, groundwater, air pollution, and energy legislation and advice to clients on the implementation of those programs
  • Member of the West Virginia Carbon Capture and Sequestration (“CCS”) Working Group and Chair of Legal Subcommittee involving preparation of draft CCS legislation
  • Advised clients in multiple states with respect to climate change issues including legislative policy, rulemakings and stakeholder proceedings including the President’s Climate Action Plan
  • Advised clients on environmental due diligence and in advance of the acquisition of industrial property and facility siting
  • Represented multiple clients in connection with USEPA efforts to develop new and renewed National Ambient Air Quality Standards (“NAAQS”) and regulatory requirements to address the interstate transport of air pollutants, including appeals of final rules


  • J.D. West Virginia University
  • B.S. Electrical Engineering, West Virginia University


  • American College of Environmental Lawyers, Founding Regent
  • Kentucky Bar Association
  • West Virginia State Bar
  • Pennsylvania Bar Association
  • American Bar Association, Natural Resource Section
  • Ohio River Valley Water Sanitation Commission (ORSANCO), Commissioner
  • West Virginia Chamber of Commerce, Board of Directors and Past Chairman
  • Interstate Oil and Gas Compact Commission, Legal and Regulatory Committee
  • U.S. Chamber of Commerce, Energy, Clean Air and Natural Resources Committees


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Virginia Street East 707
Charleston 25301 WV US
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Lina Stillman

Broadway 42
New York 10006 NY US