Warren Lehrenbaum

Washington, D.C.
Phone: +1 202.624.2755
1001 Pennsylvania Avenue NW
Washington, DC 20004

Warren Lehrenbaum represents individual companies and trade associations before the U.S. Environmental Protection Agency (EPA), the United States Department of Agriculture (USDA) and the Food and Drug Administration (FDA), where he advocates on behalf of individual products as well as broad policy issues.

Warren serves as a member on the firm's Environment & Natural Resources Group Steering Committee. His practice focuses on chemical regulation and biotechnology issues arising under the Toxic Substances Control Act (TSCA), the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA), the Food Quality Protection Act (FQPA), the Federal Food, Drugs and Cosmetics Act (FFDCA), the Emergency Planning and Community Right-to-Know Act (EPCRA), and related State and Federal laws. He assists large and small companies in the chemical and biotechnology fields obtain regulatory approvals for their products, and he helps clients address ongoing compliance and product stewardship issues. Warren's counseling in these areas typically involves issues such as: assisting manufacturers of chemical or biotechnology products understand their registration, premarket notification, testing and reporting obligations, and assisting manufacturers of crop protection products in protecting their data compensation rights. He also assists companies in their day-to-day compliance with pollution control obligations under the Clean Water Act, the Resource Conservation and Recovery Act (RCRA) and other statutes.

A substantial portion of Warren's practice is devoted to helping clients develop and implement corporate compliance programs, including environmental auditing programs and comprehensive environmental management systems. He also assists clients in identifying instances of potential non-compliance and defending against administrative investigations and enforcement actions. Warren has negotiated successful settlements in numerous enforcement cases, often involving complex supplemental enforcement projects (SEPs) and challenging economic benefit and BEN model issues.


Admitted to practice: District of Columbia; Maryland 

Other Affiliations

American Bar Association; Environmental Law Institute

Highlights, News & Knowledge

Speeches & Presentations

  • "Chemicals & Hazmat Transportation," Retail Industry Leaders Association Consumer Products Committee Virtual Meeting (October 5 - 6, 2021). Speakers: Jennifer A. Giblin and Warren Lehrenbaum
  • "Regulatory Challenges Facing Pesticide Devices," Crowell & Moring Webinar (April 8, 2021). Presenters: Warren Lehrenbaum and Amy Symonds.
  • "At the Forefront of Data Compensation," Pesticide Data Compensation and Protection in a Global Marketplace, Cary, North Carolina (March 24, 2020). Presenters: Warren Lehrenbaum and Amy Symonds.
  • "Amended TSCA and Data Compensation," Pesticide Data Compensation and Protection in a Global Marketplace, Cary, North Carolina (March 24, 2020). Presenter: Warren Lehrenbaum.
  • "Regulatory Developments at EPA," Retail Industry Leaders Association (RILA) Webinar (March 10, 2020). Speaker: Warren Lehrenbaum.
  • "Amended TSCA and Data Compensation," Pesticide Data Compensation and Protection in a Global Marketplace, Cary, NC (April 5, 2018). Presenter: Warren Lehrenbaum.
  • "Chemical Control Legislation in USA and Nanomaterials: State Focus, Including New California Safer Chemicals Requirements," ChemCon the Americas 2018: Seminar 4 - Chemical Control legislation in USA and Nanomaterials, New Orleans, LA (February 6, 2018). Panelist: Warren Lehrenbaum.
  • "The New TSCA – An Overview," 2017 American Fuel & Petrochemical Manufacturers (AFPM) Environmental Conference, Denver, CO (October 17, 2017). Presenters: Warren Lehrenbaum and Amy Symonds.
  • "TSCA Reform & What It Means For You," American Apparel & Footwear Association - What’s on Your Customers’ Shelf? The Latest on Compliance and Restricted Chemicals, Long Beach, CA (January 24, 2017). Presenter: Warren Lehrenbaum.
  • "Breaking Developments in the Regulation of Textile Chemicals," Webinar (June 28, 2016). Presenters: Warren Lehrenbaum and Natalia R. Medley.
  • "Got Chemicals? The State of Play on Chemical Security Regulations," Crowell & Moring Webinar (December 17, 2014). Presenters: Warren Lehrenbaum, Daniel W. Wolff, and Evan D. Wolff.
  • "Changes in U.S. Chemical Laws: Impacts of TSCA Modernization," Crowell & Moring Webinar (September 4, 2013). Presenters: Cheryl A. Falvey, Warren Lehrenbaum, John Phillips, and Josh Tzuker.
  • "Is California a Canary in the Coalmine? Emerging Trends and the Future of Chemical Regulation in California," Crowell & Moring Webinar (January 24, 2012). Co-Speakers: Warren Lehrenbaum, Kevin C. Mayer and Bridget E. Calhoun.


Client Alerts & Newsletters

Media Mentions

Firm News & Announcements

Jan.13.2015 Crowell & Moring Releases Third Annual Litigation Forecast Report and Inaugural Regulatory Forecast
Oct.05.2011 Crowell & Moring Consumer Product Safety Seminar to Feature Senator Mark Pryor and Other Key Government Officials
Nov.01.2010 Crowell & Moring's Environment & Natural Resources Group Expands Chemical and Pesticide Experience