UK Reimposes Broad Sectoral Sanctions on Iran
New regulations effective September 29 restore prohibitions on Iran's shipping, aviation, oil, and gas sectors, creating significant new compliance burdens for maritime and financial firms.
The United Kingdom will reimpose extensive sectoral sanctions against Iran on September 29, 2026, re-establishing prohibitions previously lifted under the Joint Comprehensive Plan of Action (JCPOA). The new rules create significant compliance challenges, particularly for the global maritime industry, by introducing powers to designate 'specified ships' and banning their charter, operation, and servicing. The regulations also broadly prohibit providing insurance or reinsurance to any person 'connected with Iran' and restrict port access for designated vessels. Further financial measures bar UK institutions from activities like opening accounts for or establishing correspondent banking relationships with Iranian counterparts. While the direct impact on aviation is narrower, targeting specific cargo aircraft, the overall regulatory shift requires clients in the shipping, energy, insurance, and banking sectors to urgently review their Iran exposure. Counsel should advise on enhanced diligence for vessels and counterparties and assess existing contracts before the imminent effective date.