Heather K. Pinnock


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P: (202) 567-2323
E: hpinnock@cassidylevy.com

Heather K. Pinnock is an associate in Cassidy Levy Kent’s Washington D.C. office. Her practice focuses on trade compliance and enforcement. Ms. Pinnock advises clients in customs matters, and assists clients with import audits, disclosures, government investigations, and developing and implementing compliance programs.

Prior to joining Cassidy Levy Kent, Ms. Pinnock was an Attorney-Advisor in the Office of International Trade, U.S. Customs and Border Protection (CBP), where she drafted binding administrative decisions involving complex or unique legal and factual determinations on customs valuation, classification under the Harmonized Tariff Schedule of the United States (HTSUS), country of origin, and the eligibility of goods to benefit from U.S. trade agreements and programs such as the North American Free Trade Agreement (NAFTA), the Generalized System of Preferences (GSP), and Chapter 98 of the HTSUS. She was also a legal adviser to the Pharmaceuticals, Health and Chemicals Center of Excellence and Expertise (CEE).

As part of her work at CBP, Ms. Pinnock conducted training on substantive issues of customs law and procedure for various CBP ports and foreign customs administrations, and provided advice on customs and international trade issues to industry, other CBP offices and other government agencies. Ms. Pinnock also represented the United States at multilateral trade agreement negotiations, bilateral working group consultations between the United States and various foreign customs administrations, and for several years served as a U.S. delegate to the World Customs Organization in Brussels.

Ms. Pinnock has also authored chapters in the American Bar Association’s International Practitioner’s Deskbook Series on U.S. Customs, and has also taught students at the George Washington University Law School.


  • LLM, American University, Washington College of Law (International Business Law)
  • LLB, University of the West Indies at Cave Hill
  • BA, University of the West Indies at Mona

Bar Admissions

  • District of Columbia
  • New York
  • Maryland
  • U.S. Court of International Trade


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