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Kevin Poloncarz represents a broad range of clients on policy, regulatory, litigation, commercial, and enforcement matters involving air quality, climate change, and clean energy. He co-chairs the firm’s Environmental Practice Group and Energy Industry Group.

Mr. Poloncarz is ranked by Chambers USA among the nation’s leading climate change attorneys and California’s leading environmental lawyers, with sources describing him as “a phenomenal” and “tremendous lawyer.” He was named an “Energy & Environmental Trailblazer” by the National Law Journal in 2017 and was inducted as a Fellow of the American College of Environmental Lawyers in 2018.

  •  Representing coalition of major power companies challenging U.S. EPA’s Affordable Clean Energy (ACE) Rule (D.C. Cir. Case No. 19-1188).
  • Representing coalition of major power companies challenging U.S. EPA’s and National Highway Traffic Safety Administration’s Safer Affordable Fuel-Efficient (SAFE) Vehicles Rule Part One: One National Program (D.C. Cir. Case No. 19-1230; D.D.C. Case No. 1:19-cv-02826-KBJ).
  • Representing conservation organization as amicus curiae in case brought by the United States challenging the linkage between California’s and Quebec’s cap-and-trade programs (E.D. Cal. Case No. 2:19-cv-02142-WBS-EFB).
  • Represented four major electric utilities challenging the U.S. EPA's determination that its greenhouse gas emissions standards for cars and trucks are not appropriate and should be revised (California v. EPA, 940 F.3d 1342, D.C. Cir. 2019).
  • Represented coalition of nine major power companies as intervenors defending U.S. EPA’s Clean Power Plan (D.C. Cir. Case No. 15-1363) and related carbon pollution standards for new, modified, and reconstructed electric generating units (D.C. Cir. Case No. 15-1381).
  • Represented energy company in litigation challenging U.S. EPA's proposed Clean Power Plan as amicus curiae in support of respondent EPA (In re Murray Energy Corp., 788 F.3d 330, D.C. Cir. 2015).
  • Represented coalition of five major California utilities as proposed amici curiae seeking to defend electric vehicle incentives in challenge brought to California’s LCFS by ethanol producers under the California Environmental Quality Act (CEQA).    
  • Represented developer of 620-MW combined cycle power plant in obtaining the first federal Prevention of Significant Deterioration (PSD) permit to limit emissions of GHGs and in successfully defending associated appeals to the EPA’s Environmental Appeals Board and U.S. Court of Appeals for the Ninth Circuit.
  • Advised and represented investment banks and funds on transactions involving California Carbon Allowances and Renewable Energy Credits (RECs).
  • Represented geothermal power producer on California renewables procurement legislation.
  • Represented long-duration storage developer in California legislative and policy matters.
  • Representing producer of low-global warming potential replacements for hydrofluorocarbons (HFCs) with respect to several states’ enactment of legislation or rules to phase-out HFCs.
  • Represented purchasers of ARB Offset Credits in dozens of transactions.
  • Represented major conservation organization in securing role for natural and working lands in California's climate programs.
  • Represented power producer with respect to Oregon’s development of cap and invest program linked with California market.
  • Advised developer of mine methane abatement project in West Virginia.
  • Represented petroleum refiner in resolution of hundreds of Notices of Violation issued by CARB and local air districts concerning air quality requirements.
  • Represented developer of geothermal power plants in obtaining PSD permits and assessing GHG impacts under CEQA.
  • Represented power producers in several states in negotiating terms of power purchase and steam sales agreements concerning compliance with emissions standards.
  • Represented investment bank in negotiations with upstream and downstream counterparties for purchase and sale of renewable power and associated renewable energy credits (RECs).

Memberships and Affiliations

  • Director, Environmental Law Institute, Board of Directors
  • Advisory Board, Center for Applied Environmental Law and Policy
  • Articles Editor, Energy Law Journal, Energy Bar Association
  • Fellow and Regent, American College of Environmental Lawyers
  • Chambers USA, Climate Change (2016-2019) and Environment (2013-2019)   
  • National Law Journal, "Energy & Environmental Trailblazer" (2017)
  • Who's Who Legal, Environment (2011-2018) and Climate Change (2016-2018)
  • The Best Lawyers in America, Environmental Law (2011-2018)
  • Law360, Environmental Law "Rising Star" (2013)