SAMUEL BOXERMAN, a partner in the firm's Environmental practice, has 33 years of experience in environmental law, handling complex litigation and providing strategic counseling. Sam defends government investigations and enforcement actions under the Clean Air Act (Title I and II), Clean Water Act, CERCLA and RCRA, and advises clients on regulatory matters, assisting with comments on agency proposals and challenges to agency actions. Sam also represents private and sovereign clients in investment treaty and commercial arbitrations. Sam has been named to Best Lawyers and Super Lawyers, where he is described as “an outstanding attorney” who brings “years of in-depth experience” providing “sound advice,” and has been recognized as a BTI Client Service All-Star. He is listed among the 2023 Lawdragon “Green 500: Leaders in Environmental Law.” Sam joined Sidley in 1991 from the U.S. Department of Justice, where he handled environmental enforcement litigation. Sam also served as a Special Assistant U.S. Attorney prosecuting criminal matters.