Leslie Glick, Butzel Long Photo

Leslie Alan Glick is a Shareholder practicing in Butzel’s Washington D.C. office and is co-chair of the International Trade and Customs Specialty Team.  Les has extensive experience in the areas of international trade and customs law.


Leslie Alan Glick (Les) is a Shareholder practicing in Butzel’s Washington D.C. office and is co-chair of the International Trade and Customs Specialty Team. Les is currently the Co-Chair of the American Bar Association International Law Section, International Trade Committee, and has previously served as co-chair of the Customs Committee and Mexico Committee.  Les has extensive experience in the areas of international trade and customs law. He has handled major international trade cases before the U.S. International Trade Commission, the U.S. Department of Commerce, the Office of the U.S. Trade Representative, and the Court of International Trade, including numerous antidumping and countervailing duty cases including a recent victory for a major automotive parts supplier, and unfair trade practice investigations under Section 301 of the Trade Act of 1974; Section 232 of the Trade Expansion Act of 1962 (national security) and Section 337 of the Tariff Act, 1930 (intellectual property). In addition, he has handled cases arising under the U.S. Customs laws involving classification, valuation, country of origin marking and customs fraud, as well as gray market and supply chain security issues (Customs Trade Partnership Against Terrorism). More recently he has successfully resolved  cases involving customs seizures and proposed penalties  due to non-compliance with the Wood Packaging Act in regard to imported wood packaging not properly treated and marked and importation of automobile parts not in compliance with regulations of the National Highway Transportation Safety Administration (NHTSA).

Les has been active in developing customs compliance programs for many U.S. corporations. Les is the author of books on customs law, NAFTA, and most recently on the U.S. Mexico Canada Agreement (USMCA) and he has been widely consulted by companies and trade associations in regard to U.S./Mexico/Canada legal questions involving imports, exports, investment, transportation and other areas. He has represented exporters and importers from Argentina, Brazil, Canada, Colombia, Denmark, Ecuador, France, Germany, Great Britain Hungary India, Italy Indonesia, Japan, Peru, and Thailand. He also has served as counsel to a Congressional sub-committee and has handled numerous matters relating to legislation. Les is a registered lobbyist and has been active in lobbying on trade matters for companies in the automotive, food industry and others. In addition, Les counsels clients regarding the Foreign Corrupt Practices Act (FCPA) and has developed compliance programs for U.S. companies and conducted FCPA compliance audits for a major defense contractor of its agents in Mexico and Colombia. He has also handled sanctions issues under the Office of Foreign Assets Control involving Cuba ,Iran and Russia. He has been an Adjunct Professor of Law at the George Mason University Law School (University of Virginia) and the University of Baltimore (University of Maryland).

In addition to his expertise in International Trade and Customs, Les assists U.S. and foreign clients in compliance with laws and regulations of the Food and Drug Administration (FDA), and U.S. Department of Agriculture (USDA) in relation to food products, meat and poultry, plants, medical devices; covid related products and the importation of pharmaceutical and biological materials as well as consumer product safety and automotive product regulation and recalls (NHTSA and FMVSA).

Les has also handled issues with alcoholic beverage imports involving the U.S. Treasury Department Alcohol, Tobacco, Tax and Trade Bureau involving beer and wine imports from Italy, and sake from Japan. Les has represented one of the largest importers of dietary supplements into the United States and assisted them in reclassification of their product as a vitamin that saved millions of dollars in customs duties. He has worked with a large dietary supplement producer in the US and Mexico on various FDA labeling issues and with one of the largest food importers from Mexico on various FDA issues involving registrations, labeling, detentions, HACCP and product recalls. He has assisted a large US pharmaceutical producer with issues concerning imported Active Pharmaceutical Ingredients (API). Les had been a member of the Food and Drug Law Institute and served on the Dietary Supplements Committee and published several articles in their magazine “UPDATE” on the Bioterrorism Preparedness and Response Act of 2002 and other topics. Les has also handled USDA issues involving meat products and assisted in preventing a recall of meat-based products sold by a restaurant chain and retailer.

Speaking Engagements and Publications:

  • Speaker, The American Chamber of Commerce (AMCHAM) in Costa Rica Seminar, “Biden Administration Trade Policies: Impact on Costa Rica and CAFTA-DR” June 2022
  • Author- Navigating US Customs Laws: What you need to know” West/Thomson/Aspatore. 2015
  • Author-United States Mexico Canada Agreement(USMCA)-Legal and Business Implications Kluwer Law International, 2020
  • Contributor, Inter-American Dialogue, "The Dialogue Continues" August 24, 2010
  • Contributor, BNA, International Trade Reporter, 2010 International Trade Outlook, “Customs,” (105-108) January 21, 2010
  • Contributing Author, Homeland Security Deskbook, Chapter 5, “Business Liability,” LexisNexis, December 2009
  • Author, Guide to United States Customs and Trade Laws, 3rd ed., Kluwer Law International, 2008
  • Speaker, Food and Drug Law Institute’s Introduction to Food Law and Regulation, Washington, D.C., February 23, 2008
  • Author, “The Bioterrorism Act After 5 Years — Is it Working?” Update, Food and Drug Law Institute, July/August 2007
  • Author, “A Coordinated Response to Stop Bioterrorism at the Border,” Update, Food and Drug Law Institute, May/June 2004
  • Presenter, Institute for International Research, “Mexcon 2004,” “NAFTA: Yesterday, Today and Tomorrow: How it Affects Your Operations in Mexico” and post conference workshop on customs issues, San Antonio, Texas, March 2004
  • Presenter, COMCE Noreste A.C., Forum 2004, “Customs and Security in Foreign Trade,” Laredo, Texas, March 2004
  • Author, “Generalized System of Preferences” AM-CHAM, Salvador, Bahia, Brazil newsletter (in Portuguese)
  • Author, “World Trade after September 11, 2001: the U.S. Response,” Cornell International Law Journal 627, Winter 2002 (adapted from Berger International Studies Lecture at Cornell Law School)
  • Contributor, “Legal Aspects of Trade with Mexico,” Doing Business in Mexico, Chapter 4, Transnational Juris Publishers, revised August 2002
  • Author, “Events of September 11th and Their Impact on U.S. Mexican Trade: Part I,” Western Hemispheric Trade Digest Vol II, No. 2, February 2002
  • Coeditor, Manual for the Practice of United States International Trade Law, Kluwer Law International; Author, Chapter 1 “Section 337 of the Tariff Act of 1930” (Unfair Trade Practices), Chapter 8 “Generalized System of Preferences,” 2001
  • Author, “Recent Developments in International Trade Law Affecting U.S-Japan Trade Relations” 29 Journal of the Japanese Institute of International Trade Law 147 (February 2001) (in Japanese)
  • Author, Understanding the North American Free Trade Agreement, 3rd ed., Kluwer Law International, 2010
  • Author, “The Antidumping Statute-Proposed Revisions and Areas for Reform,” Federal Bar News and Journal
  • Author, Multilateral Trade Negotiations: World Trade After the Tokyo Round, Rowman and Allanheld
  • Author, “Settling Unfair Trade Practice Cases Under Section 337 of the Tariff Act of 1930,” 21 Harvard International Law Journal 129



Cornell University, B.S.

Cornell Law School



  • Federal Bar Association, International Law Section, former Chair
  • American Bar Association, Administrative Law and Regulatory Practice Section, International Trade and Customs Law Committee, Chair, 2006-2017; International Law Section, Mexico Committee, Vice Chair, 2011-2012; Customs Committee, Co- Chair, 2015-2018

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