Doug Heffner’s phone number is on speed-dial for domestic and foreign companies that encounter customs and international trade disputes as they seek to grow their business and operations on an international scale. With more than 30 years of experience, Doug helps companies navigate the ever-changing international legal landscape. Whether a client is being impacted by imports, experiencing an antidumping or countervailing duty problem in the United States, a trade dispute in third countries, or a customs or other duty issues, Doug helps them minimize risks and achieve desired outcomes.

Customs and International Trade Regulation and Litigation

Doug assists clients in all aspects of international economic trade regulation and litigation, including antidumping and countervailing duty counseling and litigation (including investigations, administrative reviews, sunset reviews and scope proceedings) before the U.S. Department of Commerce and U.S. International Trade Commission, Section 201 safeguard proceedings, section 232 steel and aluminum duties, section 301 duties, and U.S. Customs and Border Protection issues. He also represents clients in transshipment investigations pursuant to the Enforce and Protect Act and False Claims Act cases involving allegations of nonpayment of duties. Doug also represents clients in appeals before the Court of International Trade, the Court of Appeals for the Federal Circuit and the North American Free Trade Agreement (NAFTA) Panels and has represented companies in third-country antidumping and countervailing duty investigations.

Representative Experience

  • Successfully defended a leading producer of fine chemical products against allegations made by a competitor that they were transshipping glycine produced in China and proved their upstanding compliance with regulations
  • Assisted a major Canadian flat roll producer minimize antidumping duty exposure in numerous administrative reviews before the U.S. Department of Commerce and obtained an exclusion from the antidumping sunset review before the U.S. International Trade Commission. Represented the client in numerous appeals
  • Assisted a major Canadian wire rod producer minimize dumping exposure in numerous administrative reviews before the U.S. Department of Commerce and obtained an exclusion from the antidumping sunset review before the U.S. International Trade Commission; also represented the client in numerous appeals, including appeals before NAFTA Panels
  • Assisted a French chemical producer prove that its exports did not cause injury to a major U.S. chemical company. Also assisted the client in filing an antidumping and countervailing duty case against that company in the European Union
  • Assisted a Brazilian stainless steel bar producer minimize its antidumping duty exposure in administrative reviews before the U.S. Department of Commerce
  • Assisted a Japanese stainless steel producer to significantly reduce its antidumping duty liability in an administrative review

Compliance and Regulatory Counsel

Doug advises clients on U.S. legislative, regulatory and administration developments, including White House trade negotiations and agreements. He also advises foreign companies on bilateral and multilateral disputes arising from NAFTA, the Uruguay Round of the General Agreement on Tariffs and Trade (GATT) and the World Trade Organization.

Personal Interests

Outside of the workplace, Doug enjoys skiing, hiking and tennis.


Bar Admissions

District of Columbia

Court Admissions

U.S. Court of International Trade
U.S. Court of Appeals for the Federal Circuit


Georgetown University
LL.M. (1985)

University of Detroit School of Law
J.D. (1983)

Albion College
B.A. (1979)

Insights & Events

Updates April 2021

New Antidumping Petitions on Raw Honey from Argentina, Brazil, India, Ukraine and Vietnam

3 min read  
Updates March 2021

USTR Considering Imposing Tariffs on Products From Six Countries in Retaliation for Imposition of Digital Service Taxes

8 min read  
Updates January 2021

C’est La Vie: New Section 301 Tariffs on French Goods — Originally Set to Go Into Effect on January 6 — Are Indefinitely Suspended

3 min read  
Updates January 2021

Despite Lame-Duck Status, Trump Administration Follows Through on Threat to Increase EU Product Tariffs

3 min read  
Updates December 2020

Treasury Department Names Vietnam and Switzerland Currency Manipulators: What Companies Importing from or Investing in these Countries Need to Know

3 min read  
Updates December 2020

U.S. Department of Commerce Makes Substantive Changes to Section 232 Steel and Aluminum Tariff Exclusions Process

6 min read  
Updates December 2020

Looking Ahead to a Biden Administration, the EU Unveils Blueprint for Enhanced United States-EU Cooperation

4 min read  
Updates November 2020

Trade Ties Between the U.S. and EU Are Tested — EU Presses Ahead With Tariffs up to $4B on U.S. Goods and Services

4 min read  
Updates November 2020

New Antidumping Duty Petitions on Polyester Textured Yarn from Indonesia, Malaysia, Thailand and Vietnam

3 min read  
Updates October 2020

U.S. Trade Representative Announces Two Section 301 Investigations Against Vietnam

4 min read  

Leadership & Community

Professional Associations

  • D.C. Bar Association — International Section
  • Customs and International Trade Bar Association

Firm Leadership

  • Leader, Customs & International Trade Practice Team; Pro Bono Committee 
  • Drinker Biddle & Reath LLP  — Team Leader, Customs and International Trade team; Co-Chair, Pro Bono Committee (Washington, D.C. office)


  • National Law Review — "Go-To Thought Leader: Trade Regulation," 2019
  • Martindale-Hubbell — Peer Review Rating: AV Preeminent®

Awards Methodology

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