Photo of Keith A. Matthews


J.D., Georgetown University Law Center

M.S., California Institute of Technology

B.S., Jackson State University 

Bar and Court Admissions

District of Columbia Bar

Maryland Bar

Keith builds on 20 years of private sector and government experience in environmental law related to chemical substances regulation, biopesticides, and genetically engineered organisms. He is a former Director of the Biopesticides and Pollution Prevention Division (BPPD) in the U.S. Environmental Protection Agency’s (EPA) Office of Pesticide Programs (OPP). His practice focuses on the regulation of agricultural chemical products, including biotechnology products regulated by EPA and the U.S. Department of Agriculture. Keith counsels and advises his clients using his breadth of knowledge on a variety of statutes, including the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), the Federal Food, Drug, and Cosmetic Act (FFDCA), the Toxic Substances Control Act (TSCA), and the Endangered Species Act.

Representative Experience

  • Provided to a major agribusiness company a comprehensive analysis of statutory, regulatory, and common law requirements and principles applicable to the development, sale, and distribution of genetically engineered food crops in the United States.
  • Conducted a comprehensive assessment of the environmental, health, and safety (EHS) programs of a Fortune 500 company and provided recommendations to enhance the company’s EHS effectiveness.
  • Has counseled numerous companies on the complex regulatory scheme applicable to genetically engineered crops, insects, and animals in the United States.
  • Has counseled numerous companies on EPA’s regulatory requirements applicable to biopesticides and biostimulants.
  • Provided legal counsel to a number of government agency clients, including BPPD, the Office of Air and Radiation, and the Office of Research and Development.
  • Extensive experience serving as lead attorney on highly technical issues of first impression under FIFRA, TSCA, and the agency’s Radiation Program.
  • Primary attorney providing advice to the Office of Pesticide Programs in a number of cases where unapproved varieties of genetically engineered foods were found in commerce.
  • Provided almost exclusive legal support to the Office of Pollution Prevention and Toxics (OPPT) in responding to a petition to regulate formaldehyde under TSCA.

Professional Experience

  • Director, Biopesticides and Pollution Prevention Division, U.S. EPA’s Office of Pesticide Programs
  • EPA’s Office of General Counsel
    • Staff Attorney
    • Assistant General Counsel


  • American Bar Association (ABA)
  • American Association for the Advancement of Science (AAAS)

News & Insights