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Washington, DC
Justin Roberts
©2024 Keller and Heckman LLP

Justin Roberts, Ph.D., specializes in pesticides and related regulatory issues. He works closely with our attorneys to assist clients with new and existing pesticide products under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), as well as new and existing chemical substances under the Toxic Substances Control Act (TSCA).

Justin’s extensive TSCA experience includes premanufacturing notices and exemptions, determining the potential for existing chemical substances to cause unreasonable risk to human health and the environment, risk assessment and risk management of nanomaterials, and Civil Enforcement. His FIFRA experience includes characterization between industrial and pesticidal chemicals, and later with criminal enforcement of misuse and mislabeled pesticides.

Prior to joining Keller and Heckman, Justin served 12 years as a chemist in progressively responsible roles for the U.S. Environmental Protection Agency (EPA). Most recently, he was a Senior Chemist in the National Enforcement Investigation Center (NEIC) of the EPA, where he advised the laboratory supervisors on various topics ranging from analytical techniques to technology that could improve efficiency, specifically focusing on per- and polyfluorinated alkyl substances (PFAS). Additionally, he served as an Organic Chemist within EPA’s Office of Pollution and Prevention (OPPT) assisting with TSCA initiatives, specifically with the implementation of The Frank R. Lautenberg Chemical Safety for the 21st Century Act.

After receiving his Ph.D. in Organic Chemistry, Justin conducted postdoctoral research, which focused on targeted therapies for tuberculosis infections and identifying phenyl-diketo acid inhibitors of malate synthase. 


  • American Chemical Society (ACS)


  • EPA Silver Medal for Superior Service
  • EPA Bronze Medal for Commendable Service
  • EPA Collaboration Award
  • EPA Mission Award


Grand Valley State University, B.S., 2001
Princeton University, M.S., 2002
Princeton University, Ph.D., 2007 Organic Chemistry