Lewis Leibowitz practices in the areas of international trade law, customs law, and international commercial transactions. He represents clients before all federal courts and agencies dealing with international trade matters, including the Department of Commerce, the U.S. Trade Representative's Office, the International Trade Commission, U.S. Customs and Border Protection, the Court of International Trade, and the Court of Appeals for the Federal Circuit. A leading attorney in trade law matters under U.S. and international law, Lewis advises and assists clients in actual and potential antidumping and countervailing duty proceedings. In addition, he works with clients on proceedings under Section 201 and 301 of the Trade Act of 1974 and Section 337 of the Tariff Act of 1930. He is also active in dispute settlement activities involving the World Trade Organization (WTO), advising clients in the private industry and government on these matters. Lewis is also active in legislative matters affecting international trade law and policy, working extensively in matters affecting U.S. Foreign-Trade Zones (FTZ). He counsels clients in the benefits of FTZ use, and represents clients in numerous application proceedings and related matters. In the customs area, Lewis represents clients in matters involving FTZs, entry rulings, classification of imported merchandise, bonds, fines, penalties, seizure and forfeiture proceedings, valuation, country of origin marking, and North American Free Trade Agreement (NAFTA) eligibility of products and activities in North America. Lewis also works on matters affecting international trade in the aerospace, agriculture, automotive, energy, and steel industries. In the steel trade area, he has represented clients in a number of cases affecting steel trade, including the negotiation of international steel agreements, antidumping/countervailing duty proceedings, trade counseling, legislative matters, and others. He was very active in the successful effort on behalf of steel consuming industries to remove the Steel Safeguard measures in effect from 2002 to 2003. Lewis has served as an adjunct professor at the University of Maryland Law School and is a frequent speaker and panelist on international trade law and policy subjects.