Mark R. Ludwikowski

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Sandler, Travis & Rosenberg, P.A.

Areas of Practice

Bar associations

  • Customs and International Trade Bar Association - Secretary

Admitted to practice

  • Court of Appeals for the Federal Circuit
  • Court of International Trade

State Bar Memberships


The Columbus School of Law, Catholic University of America

Catholic University of America
B.A., Political Science and Business Administration

Jagiellonian University
International Business and Trade Summer Law Program

Photo of Mark R.  Ludwikowski

MARK R. LUDWIKOWSKI is a Member of Sandler, Travis & Rosenberg, P.A., resident in the Washington, D.C., office. He leads the Firm’s Trade Remedies Practice as well as the Hazardous Materials Compliance and Defense practice.

Mr. Ludwikowski’s expertise focuses on diverse international trade and customs law matters, and advice on cross-border movement of goods and services. He applies professional experience from prior U.S. government and corporate counsel positions to bring efficient business solutions to his clients' global issues.

For over 20 years, Mr. Ludwikowski has counseled companies and governments across a broad range of trade remedy actions, including antidumping duty (ADD) and countervailing duty (CVD), safeguard cases and Section 332 investigations.  He has successfully represented clients in numerous ADD/CVD cases, including multiple 0% rates and product exclusions.  

Mr. Ludwikowski also advises clients on various aspects of customs transactional, regulatory and litigation matters, including seizures, detentions, notices of action, tariff classification, product marking and labeling, valuation and preference, focused assessments, C-TPAT, foreign-trade zone matters, drawback, copyright and trademark protection, export controls and enforcement related to the EAR and ITAR, trade benefits, travel screenings and watch lists. 

With respect to hazardous materials compliance, Mr. Ludwikowski has handled numerous matters involving global hazmat standards and regulatory approvals (e.g., DOT, ICAO, IATA) for the transportation of explosives, lithium batteries and other dangerous goods. He also assists companies in maintaining compliant business practices by conducting due diligence investigations and drafting and implementing compliance manuals.

Mr. Ludwikowski represents clients before U.S. agencies and federal courts, including the Department of Commerce, the International Trade Commission and the Office of the U.S. Trade Representative, and in compliance matters before U.S. Customs and Border Protection, the Departments of State, Transportation, Treasury, and the Bureau of Alcohol, Tobacco, Firearms and Explosives.

Fluent in Polish, Mr. Ludwikowski also advises companies on cross-border transactions, particularly with respect to Central and Eastern Europe.

Representative Industries
Agricultural Products
Chemicals, Cosmetics and Pharmaceuticals
Consumer Goods
Munitions and Controlled Technology
Textiles and Apparel


Customs & International Headlines