S.2904, the SHADOW Fleet Sanctions Act

Bottom Line Up Front

S. 2904, the SHADOW Fleet Sanctions Act of 2026 (Sanctioning Harborers And Dodgers Of Western Sanctions Act of 2026), would impose mandatory sanctions on vessels, owners, operators, insurers, and facilitators participating in Russia’s shadow fleet of illicit tankers used to circumvent Western oil sanctions. The bill targets a wide range of deceptive shipping practices — including reflagged or uninsured vessels, unsafe maritime behavior, and ship-to-ship transfers — and reaches third-party entities, port operators, and refineries that help Moscow continue energy exports in violation of U.S. and G7 price caps. Reported out of the Senate Foreign Relations Committee on February 10, 2026, the legislation also addresses Russia’s defense industrial base, sanctions on key Russian energy projects, and China’s role in facilitating sanctions evasion.

Click here to read the full legislative text and view the list of cosponsors.

Why It Matters

• Russia’s shadow fleet moves billions in oil every month, providing a critical revenue lifeline that funds Moscow’s war in Ukraine and its aggression against NATO allies. By mandating sanctions on shadow fleet vessels and those who own, operate, insure, or facilitate them, this bill directly targets the financial engine sustaining Putin’s war machine.
• Existing sanctions focus largely on buyers and exports but leave gaping loopholes in the transport and insurance layers where evasion actually occurs. The SHADOW Fleet Sanctions Act closes those gaps by reaching ship-to-ship transfers, reflagged vessels, shell insurers, port operators, and refineries that knowingly process sanctioned Russian-origin petroleum products.
• The bill targets non-compliant vessels and bad actors without disrupting legitimate global energy markets. It includes carefully calibrated exceptions for humanitarian assistance, crew safety, and intelligence activities — ensuring the legislation tightens pressure on Moscow while preserving energy stability for allies and partners.
• If sanctions can be evaded with a new flag registration or a shell insurer, Western deterrence collapses. This bill restores consequence and clarity by aligning U.S. designation authorities with those of the EU and UK, establishing minimum standards for flag state registries, requiring China-specific sanctions strategies, and mandating robust congressional reporting — ensuring accountability and sustained pressure on Russia’s evasion networks.