The Maritime Sector: A “Front Line” of U.S. Sanctions in Shipping Law News 11/02/2026 The maritime shipping sector has become a key target of sanctions policymakers and enforcement agencies in the U.S., European Union and United Kingdom as government authorities in these jurisdictions seek to advance national security objectives in part through countering deceptive and illicit maritime shipping practices. The strategic targeting of the maritime shipping sector for sanctions has continued to intensify in 2025, raising compliance risks for an increasingly broad range of maritime industry stakeholders. Given the costs that can arise from these issues through penalties and litigation, companies in this sector should 1) familiarize themselves with sanctions evasion “red flags” highlighted in guidance issued by enforcement authorities, 2) assess the risks most relevant to their cross-border activities, markets, clientele, investments and operations, and 3) devote appropriate resources to implementing risk-based compliance measures. Maritime Sanctions Designations: What Are the Legal Authorities? Statutes authorizing sanctions to be imposed on actors involved in undertaking certain shipping and other maritime-related dealings with Russia, Iran, designated terrorist organizations and North Korea have existed for more than a decade1. Nonetheless, the targeting of vessels and other maritime-related companies allegedly associated with sanctions evasion “networks” ramped up significantly during the Biden Administration, following the G7’s imposition of a “price cap” on Russian-origin oil in 2022. In addition, the U.S., EU and U.K. have continuously announced sanctions designations to counter efforts by vessels and related entities (referred to as the “Shadow Fleet” or “Dark Fleet”) to evade U.S. sanctions and avoid compliance with the price cap or other sanctions prohibitions. In 2025, the sanctioning of maritime entities and Shadow Fleet vessels has continued to intensify in the U.S., EU and U.K., although the focus of U.S. sanctions authorities has moved much more aggressively toward parties allegedly controlled by or working for or on behalf of sanctioned Iranian entities and other designated terrorist organizations (including Hezbollah and the Houthis). This shift in U.S. sanctions priorities aligns with the “max pressure” campaign on Iran and its proxies in the region announced in President Donald Trump’s National Security Presidential Memorandum 2 (NSPM-2), which called for, among other things, a “robust and continual” campaign to “drive Iran’s export of oil to zero, including exports of Iranian crude to the People’s Republic of China.”2 Likewise, increased sanctions actions targeting vessels and shipping companies associated with the Houthis have followed the Trump Administration’s redesignating the group as a Foreign Terrorist Organization (FTO) on March 4, 2025.3 The maritime industry has also been impacted by the Trump Administration’s designation of cartels operating in the Western Hemisphere as FTOs as well. Maritime Sector Targets of Sanctions Authorities Maritime Sanctions Targets: By the Numbers Recent statistics underscore how the maritime shipping industry has, along with the oil and gas energy sector, become a front line of sanctions policy for the U.S., EU and U.K. Well over 300 vessels, mostly tankers, have been individually added to the U.S. Department of the Treasury Office of Foreign Assets Control’s (OFAC) Specially Designat