Aaron applies his encyclopedic knowledge of hazardous waste regulatory law to help companies comply under federal and state laws—throughout all 50 states—and abroad.

He holds an advanced degree in chemistry, has extensive training in economics, and is a former U.S. Environmental Protection Agency consultant. His unique, multidisciplinary background—law, science, economics, and government—informs nearly every aspect of his work and makes him a useful bridge between attorneys, engineers, business managers, consultants, and regulators.

Aaron has focused on hazardous waste issues since the beginning of the federal regulatory program in 1980. With this historical experience, he offers clients comprehensive regulatory counsel on hazardous waste matters, including compliance strategy, advocacy, rulemaking challenges, end-of-life product management, permits, variances, and enforcement action response. His clients consist of companies and trade associations in the chemicals, electronics, recycling, petroleum, pharmaceuticals, retail, steel, and mining industries.

Unlike environmental law generalists, Aaron is equipped to address hazardous waste management from a distinctly technical angle. He develops technical arguments, designs sampling and analysis plans, interprets laboratory reports, performs statistical analyses, reviews toxicological data, generates estimates of regulatory costs and benefits, and models fate and transport of hazardous constituents in the environment.

In addition to helping clients manage hazardous wastes and recyclable materials, Aaron advises on hazardous materials and dangerous goods transportation, as well as diversion prevention for controlled substances and chemical precursors used in the production of chemical weapons or illegal drugs, worldwide.

Aaron is the firm’s most senior LGBTQ lawyer. Throughout his career, he has seen remarkable changes—from the start when he feared that his future would be in jeopardy if people discovered his secret, to now when his orientation is not only accepted but embraced by colleagues and clients.


  • Yale University  (B.S., magna cum laude, 1979)
    • Chemistry
  • California Institute of Technology  (M.S., 1982)
    • Chemistry
  • Stanford University  (J.D., 1985)

Bar Admissions

  • District of Columbia

Court Admissions

  • U.S. Court of Appeals - D.C. Circuit
  • U.S. Court of Appeals - Sixth Circuit

Professional Affiliations

  • American Bar Association
  • American Chemical Society
  • National LGBT Bar Association