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Jonathan Kalmuss-Katz, Associate

Jonathan Kalmuss-Katz joined the firm after graduating from New York University School of Law in 2010. His work has covered environmental impact review under the State Environmental Quality Review Act (SEQRA) and the National Environmental Policy Act (NEPA), Title V permitting under the Clean Air Act (CAA), State Pollutant Discharge Elimination System (SPDES) permitting under the Clean Water Act, enforcement actions under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA), and the defense of contract and tort claims.

In law school, Jonathan served as the Editor-in-Chief of the New York University Environmental Law Journal and Legal Projects Chair for the NYU Environmental Law Society. He participated in the NYU Environmental Law Clinic at the Natural Resources Defense Council, interned with the EPA Region 2 New York Superfund Division, and worked at SPR. Upon graduation, he was awarded the NYU Law Environmental Law Prize and the Sive, Paget & Riesel Environmental Law Journal Award.

Prior to law school, Jonathan worked as Assistant Director of Editorial Communications for the National Environmental Trust and Policy Analyst for the Pew Campaign for Fuel Efficiency.


Jonathan is admitted to practice law in New York State and is a member of the New York State Bar Association and the Bar Association of the City of New York. He is a 2011 graduate of the New York City Environmental Law Leadership Institute, and, in the fall of 2011, will begin a term as the Secretary of the City Bar Association's Environmental Law Committee.


  • New York University School of Law, J.D. 2010, magna cum laude and Order of the Coif
  • Carleton College, B.A. 2004, magna cum laude


  • Eco-Anti Terrorism: EPA's Role in Safeguarding Our Nation's Chemical Plants, 31 New York Environmental Lawyer (Winter 2011) (first prize, Professor William R. Ginsberg Memorial Essay Contest)
  • Emerging U.S. Climate Policy: How Congress Can Learn From and Build Upon Existing Global Warming Programs, 1 Bloomberg Environmental Law Reports No. 4 (with Jeffrey Gracer)