Canadian Marine Law Perspectives on the 2026 Strait of Hormuz Crisis: Sanctions, Insurance and Shipping Risk

The Strait of Hormuz has long been recognized as one of the world's most strategically significant maritime chokepoints.

The events that occurred in the first two quarters of 2026 demonstrate how quickly geopolitical instability can evolve into a complex legal, commercial, and compliance challenge for the maritime sector. Following escalating hostilities involving Iran, the United States, and Israel, commercial shipping through the Strait experienced significant disruption, resulting in heightened sanctions enforcement, increased security concerns, and renewed scrutiny of maritime compliance practices. Approximately one-quarter of global seaborne oil trade and nearly one-fifth of global liquefied natural gas exports typically transit through the Strait, making disruptions in the region a matter of immediate concern for shipowners, charterers, cargo interests, insurers, and financial institutions.[1]

While public attention has largely focused on the geopolitical and economic implications of the crisis, maritime stakeholders should not overlook its legal consequences. Recent measures adopted by the United States and Canada illustrate an increasing willingness by regulators to target not only sanctioned actors themselves but also broader maritime networks that facilitate international trade and vessel operations.[2] As a result, sanctions compliance has become an increasingly important component of maritime risk management.

Sanctions Risk No Longer Stops at the Counterparty

Historically, maritime sanctions compliance focused primarily on determining whether a contracting party appeared on an applicable sanctions list. Gradually, however, regulators are examining the entire lifecycle of a maritime transaction.

In July 2026, the United States Department of the Treasury announced sanctions targeting entities and vessels allegedly connected to maritime activities associated with Iranian efforts to exert control over commercial transit through the Strait of Hormuz.[3] The measures formed part of a broader enforcement effort directed at maritime networks allegedly involved in sanctions evasion and the transportation of Iranian petroleum products. Regulators have increasingly scrutinized vessel ownership structures, beneficial ownership arrangements, maritime service providers, insurance providers, and freight payment mechanisms in an effort to identify indirect sanctions exposure.[4]

For Canadian maritime businesses, the practical implication is that sanctions risk can arise even where there is no direct contractual relationship with a sanctioned person. A useful example is Canada's sanctions regime targeting Russia. In recent years, Canadian businesses have been required to look beyond the immediate counterparty and assess whether a sanctioned individual or entity indirectly owns or controls a vessel owner, charterer, cargo interest, or service provider.[5] The lesson is that sanctions risk may arise elsewhere in the transaction chain even where the contracting party itself is not listed. The same principle extends beyond ownership structures. Canada's sanctions targeting vessels associated with Russia's "shadow fleet" demonstrate how compliance obligations may also be triggered by the vessels and maritime services involved in a transaction, requiring businesses to screen not only counterparties but also assets and operational networks connected to a voyage.[6]

The Canadian Dimension

Canada has also responded to developments in the region. On August 14, 2026, Global Affairs Canada announced additional sanctions against several individuals for their alleged involvement in activities that obstructed navigation rights in and around the Strait of Hormuz.[7] According to the Government of Canada, the measures were adopted in response to conduct that threatened maritime security and freedom of navigation in a critical international waterway.[8]

Although relatively few Canadian-owned vessels routinely operate in the region, many Canadian businesses participate in global supply chains that depend on maritime commerce passing through the Strait. That being said, commodity traders, logistics providers, lenders, insurers, and cargo interests may therefore face indirect sanctions-related risks arising from regional instability. The implications extend beyond compliance with Canadian sanctions legislation because Canadian businesses must also consider the practical impact of allied sanctions regimes, contractual sanctions clauses, financing restrictions, and insurance market responses. As a result, a transaction that remains legally permissible may nevertheless become commercially impracticable if insurance, banking, or vessel services become unavailable.

In reviewing the recent guidance from Global Affairs Canada, it further emphasizes that sanctions compliance is no longer solely a concern for banks and financial institutions. In fact, for maritime businesses, this means looking beyond the immediate contracting party and considering vessel ownership and control, cargo origins, financing arrangements, and the role of intermediaries throughout the supply chain. In practice, sanctions compliance has become an ongoing risk-management exercise requiring continuous due diligence and monitoring rather than a one-time screening process.

In Canada, sanctions are primarily imposed under the Special Economic Measures Act, the United Nations Act, and the regulations enacted under those statutes. While there has been relatively little Canadian court consideration on maritime sanctions issues, Canadian businesses remain subject to an expanding sanctions framework and increasingly detailed regulatory guidance. As a result, maritime stakeholders often assess sanctions-related risks by reference to legislation, government guidance, international enforcement developments, and the contractual protections contained in charterparties, financing agreements, and marine insurance policies. The increasing complexity of global shipping means that compliance is no longer simply a legal issue, but an operational one that must be managed throughout the lifecycle of a maritime transaction.

Marine Insurance Under Increased Pressure

Marine insurance may represent one of the most immediate areas where sanctions risk translates into commercial consequences.

Most modern hull and machinery, cargo, and protection and indemnity ("P&I") policies contain sanctions limitations designed to ensure that insurers do not expose themselves to regulatory penalties by providing coverage connected to prohibited activities. Consequently, sanctions-related issues can affect not only a vessel's trading opportunities but also the availability of indemnity following a casualty.

The July 2026 U.S. sanctions measures are particularly noteworthy because they extended beyond vessels and cargoes to include entities involved in maritime insurance-related activities associated with the Strait of Hormuz.[9] These developments reinforce a broader trend toward examining the support structures that facilitate maritime commerce rather than focusing solely on cargo movements themselves.

From a Canadian marine law perspective, sanctions issues can create disputes concerning coverage, policy interpretation, disclosure obligations, and contractual risk allocation. Canada's Marine Insurance Act continues to govern matters such as material disclosure and the duties owed by insureds to their insurers. In a sanctions-sensitive environment, information regarding cargo origin, vessel ownership, trading routes, and beneficial ownership may become particularly important during both underwriting and claims investigations. As sanctions requirements continue to evolve, disputes may increasingly arise over whether an insured provided sufficient information to its insurer and whether a sanctions clause limits or excludes coverage in a particular case.[10]

As geopolitical tensions continue to affect global shipping routes, Canadian insureds should ensure that sanctions compliance is incorporated into their voyage planning and broader risk management processes.

Risk Management Lessons for Maritime Businesses

Overall, one of the main lessons arising from the Strait of Hormuz crisis is that sanctions compliance can no longer be treated as a one-time onboarding exercise. More importantly, maritime businesses should consider implementing or strengthening their compliance programs to reflect the rapidly evolving geopolitical environment we live in. Such measures may include:

• ongoing sanctions screening throughout the duration of a voyage;
• enhanced beneficial ownership verification procedures;
• monitoring vessel movements and trading patterns;
• reviewing sanctions provisions in charterparties and other commercial agreements;
• assessing insurance coverage implications before entering high-risk trades; and
• implementing escalation procedures where sanctions concerns arise.

These measures are consistent with recent Global Affairs Canada guidance, which emphasizes continuous monitoring, robust internal controls, risk-based compliance programs, documentation of due diligence efforts, and enhanced scrutiny of complex shipping and payment structures that may obscure the identity of sanctioned parties.[11]

Looking Ahead

The Strait of Hormuz crisis serves as a reminder that maritime risk is becoming increasingly interconnected. Security threats, sanctions enforcement, insurance considerations, and commercial operations now overlap in ways that can expose maritime stakeholders to significant legal and financial consequences.

For Canadian shipowners, charterers, insurers, and trade finance participants, the most important lesson may not be the geopolitical events themselves, but the speed with which those events generated new compliance obligations and operational risks. Recent actions by Canadian and U.S. authorities demonstrate that sanctions enforcement is likely to remain an important consideration for businesses engaged in international maritime commerce.[12]

As regulators continue to focus on maritime sanctions enforcement and complex shipping networks, robust screening procedures and due diligence programs remain among the most effective tools available to mitigate legal, financial, and reputational risk. For Canadian maritime stakeholders, ensuring that compliance frameworks evolve alongside emerging geopolitical developments will be essential in navigating an increasingly complex regulatory environment.