Department profile
Arnold & Porter

Environment

USA Guide 2026 : District of Columbia


Arnold & Porter

Rankings

About

Provided by Arnold & Porter

Arnold & Porter Kaye Scholer's environmental group offers clients access to leading practitioners in every area of environmental law.

We handle precedent-setting challenges across the country, in state and federal courts and at the appellate level. Team members have served in senior government positions such as Deputy GC, EPA and EPA leadership roles involving the CAA, TSCA, and FIFRA; Chief of the Environmental Enforcement Sect, DOJ; Under Sec. for Natural Resources and the Environment, USDA; and Deputy Commissioner & GC, NY State Dept. of Environmental Conservation; as well as the current Director of the Sabin Center for Climate Change Law.  Our practice spans:

  • Litigation & Enforcement: We have experience in civil & criminal enforcement under every federal statute; contaminated site cleanups, & litigation; catastrophic incident defense and crisis management; and toxic tort claims associated with an array of groundwater, air pollution, toxic chemical, radioactivity, and public nuisance matters.
  • Regulatory: We advise clients on the full range of environmental issues, assist in developing compliance programs, counsel on risk mitigation, identify and manage product supply chain issues, and obtain needed permits and approvals for projects.
  • Transactional: We manage environmental assessments, negotiate contracts and land use permitting for development projects. We also advise on the environmental aspects of multi-jurisdictional transactions.

See more.

Industries (8)

  • Aerospace/Defense
  • Automobile/Parts
  • Chemicals
  • Consumer Goods
  • Energy
  • Industrial Engineering
  • Transportation
  • Utilities

Chambers Review

Provided by Chambers

Environment - District of Columbia

Band 1

Band 1


What the Team is Known For
Arnold & Porter has a market-leading group offering deep expertise across the field, with noted strength in air and water issues. The firm is particularly prominent for its involvement in the industry's most headline-grabbing disputes. The team is recommended for hazardous waste matters and for its leading natural resource damages practice. The sector expertise at Arnold & Porter covers healthcare, manufacturing, pharmaceuticals and technology. The firm's attorneys have additional experience acting for trade associations on various regulatory amendments, particularly in relation to the TSCA.

Work Highlights

Provided by Chambers

  • Arnold & Porter represented Honeywell International in a putative toxic tort class action concerning multiple personal injury and wrongful death cases, allegedly arising from exposure to radioactive emissions from a uranium conversion facility.

Strengths

Provided by Chambers

  • The team's attorneys are knowledgeable in their subject matters, and the firm is able to pull in colleagues with expertise in a wide range of areas.

    Environment respondentUSA
  • Arnold & Porter can provide excellent top shelf legal services for environmental issues including compliance, regulatory and everything in between. It is a trusted source for counselling and helping us navigate a disrupted regulatory landscape.

    Environment respondentUSA
  • The firm is fantastic and does an excellent job. It's attorneys are very thoughtful, diligent, detail-orientated and organized.

    Environment respondentUSA
  • Arnold & Porter is often recognized and regarded as best in the class, representing a more practical approach to regulatory development and often receive prompt response from regulatory agencies.

    Environment respondentUSA

Notable Practitioners

Provided by Chambers

  • Senior StatespeopleJoel M Gross
    Senior StatespeopleJoel M Gross

    Joel M Gross

    Joel Gross advises clients on natural resource damages claims and civil and criminal enforcement proceedings under air, water and waste statutes.
  • Band 2Jonathan Martel
    Band 2Jonathan Martel

    Jonathan Martel

    Jonathan Martel is a specialist in the CAA with extensive experience across the full range of related regulatory matters and litigation. He is able to draw on prior government experience working within EPA.
    • Jonathan Martel is a really wonderful lawyer; he's well established and a trusted advisor.

      Environment respondentUSA
    • Jonathan has world-class subject matter knowledge, communication and counselling skills.

      Environment respondentUSA
    • Jonathan is a clean air expert, he knows the act inside and out and is an exceptional environmental lawyer.

      Environment respondentUSA
  • Band 3Ethan Shenkman
    Band 3Ethan Shenkman

    Ethan Shenkman

    Ethan Shenkman brings extensive experience to bear when advising on regulatory matters. He is particularly adept in issues relating to the Clean Air Act.
    • Ethan's ability to assess the law and understand in the most complex circumstances how it should be applied is remarkable. I have immense admiration for him in terms of his legal ability and intellectual firepower.

      Environment respondentUSA
  • Band 4Michael D Daneker
    Band 4Michael D Daneker

    Michael D Daneker

    Michael Daneker is primarily focused on disputes. His practice covers environmental law-related toxic tort, citizen suits, Superfund litigation and CWA cases.
  • Band 6Lawrence E Culleen
    Band 6Lawrence E Culleen

    Lawrence E Culleen

    Lawrence Culleen is recognized for his extensive experience advising on EPA regulatory programs. He is particularly strong advising on matters concerning TSCA and FIFRA.
    • Lawrence is expert in understanding the needs of his client and the delivery of work products.

      Environment respondentUSA
  • Band 6Stacey Halliday
    Band 6Stacey Halliday

    Stacey Halliday

    Stacey Sublett specializes in environmental justice, compliance and corporate social responsibility, leading audits, investigations and enforcement matters.
    • Stacey Halliday is a phenomenal lawyer; she is very level-headed and reasonable in strategy and advice.

      Environment respondentUSA
    • Stacey is a really outstanding.

      Environment respondentUSA

Ranked Individuals at Arnold & Porter (6)

District of Columbia

Members

Provided by Arnold & Porter

Arnold & Porter has rankings in the following guides

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