Tom Milch has taken a lead role in many high- visibility environmental cleanups and disputes. For example, he served as one of the lead outside counsel to BP in response to the Deepwater Horizon oil spill. Tom has represented clients in enforcement actions or rulemaking proceedings under each of the major federal environmental statutes. He also has extensive experience on significant transactions that involve difficult environmental and other regulatory issues. The breadth and depth of his practice have earned Tom recognition as a leader in the environmental field, and he has been consistently ranked by Chambers USA and other prominent publications. In recent years, Tom has also taken a lead role on non-environmental government investigations and public policy issues. In addition to BP, the clients he has represented include Honeywell, Samsung, Texas Pacific Group, Atlantic Richfield Company, Hercules and Safety-Kleen, among others.

Tom is also the former Chairman of Arnold & Porter-- a position he held for nine years. Recognizing his contribution to the firm's performance, the National Law Journal named Tom to its Washington, DC list of "Visionaries" in 2011.

For many years, Tom was an Adjunct Professor at Georgetown Law Center where he taught an advanced course in environmental litigation. He also has served on the Board of Directors of the Environmental Law Institute, Wildlife Trust International and RESOLVE, Inc. Tom has had an active pro bono practice, primarily in the areas of the environment and human rights.


Best Lawyers
Environmental Law (2007-2023)
Chambers USA
Environment (DC) (2006-2019)
The Legal 500 US
Environment: Litigation (2014-2018)
Environment: Regulatory (2016)
Product Liability and Mass Tort Defense: Toxic Tort (2015)


  • J.D., Yale Law School
  • B.A., Yale University, summa cum laude
  • District of Columbia
  • Served on the Board of RESOLVE, Inc., a nonprofit organization committed to alternative dispute resolution in the environmental field

  • Served as a member of the American Bar Association's Standing Committee on Environmental Law (1996-1998)

  • Served as Chairman, American Bar Association's Special Committee on Environmental Litigation Techniques (SONREEL) (1991-1994)

  • Served on Board of Directors, Environmental Law Institute (present and 1992-1998)

  • Served on the Board of Directors, Wildlife Trust International, an international conservation group committed to biodiversity protection (1998-2004)

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