On behalf of the undersigned trade associations representing American importers, exporters, transportation providers, and other supply chain stakeholders, we write you to urge the administration to engage with supply chain stakeholders to address questions and concerns regarding ongoing challenges with the interpretation of the “in transit” reciprocal tariff exclusion to date. While we appreciate the guidance provided by U.S. Customs and Border Protection (“CBP”) thus far, we believe that there are outstanding questions regarding how relay vessels are addressed which continue to create confusion and disruption to supply chains.