A Delicate Balance: Navigational Fees, International Law, and the Strait of Hormuz
As global maritime trade hinges on the strategic Strait of Hormuz, Europe is evaluating proposals to introduce voluntary navigational fees—a contentious measure that could reshape control over one of the world’s most critical shipping lanes. The discussions, led by regional powers like Oman and backed by legal frameworks from the International Maritime Organization (IMO), come amid escalating tensions between Iran and the United States, where Tehran’s adherence to a fragile ceasefire remains uncertain.
The proposals, which emphasize non-compulsory tolls, aim to align with existing models like those in the Strait of Malacca and the English Channel, where navigational services are monetized without infringing on the freedom of passage guaranteed under international law. However, the implementation faces stiff opposition from Iran’s hardline factions, particularly the Islamic Revolutionary Guard Corps (IRGC), which has repeatedly clashed with Western powers over maritime sovereignty.
The Legal and Diplomatic Framework: Oman’s Role and Iran’s Stance
At the heart of the debate lies Oman’s alternative governance model for the Strait of Hormuz, developed in collaboration with British legal experts. Muscat, which controls a significant portion of the strait’s navigable waters, has proposed a voluntary fee system to fund enhanced maritime security, pollution control, and emergency response mechanisms—mirroring the Cooperative Mechanism for the Straits of Malacca and Singapore (MSMC), which manages over 120,000 annual vessel transits.
Oman’s Foreign Minister, Khamis bin Mohammed Al Shamakhi, reiterated at the IMO Council meeting in London that while transit fees are prohibited under international law, voluntary contributions for navigational support services could bolster safety without violating sovereignty. The mechanism, funded partly by Japan, demonstrates how regional cooperation can mitigate risks while preserving open trade routes.
Yet, Iran’s response remains divided. While Foreign Minister Abbas Araghchi is set to meet with Omani officials in Muscat this weekend to discuss the strait’s future, Tehran’s hardliners—including segments of the IRGC—have dismissed international maritime law as irrelevant, citing the U.S. airstrikes in February 2024 as justification for unilateral action. A diplomat familiar with the matter noted:
“There are factions in Tehran that believe Iran has already been wronged by the U.S., so why should they comply with IMO rulings? Others, however, see value in cooperation. The split is deep.”
Iran’s Energy Policy Research Group has also proposed a transparent “service fee” framework, arguing it would incentivize regional collaboration rather than impose arbitrary tolls. The group’s report emphasizes that any fees should be embedded within a broader security and environmental governance structure, ensuring they do not function as a de facto blockade mechanism.
The Ceasefire’s Fragility: U.S. Demands and Iran’s Non-Compliance
The Strait of Hormuz’s fate is intricately tied to the interim ceasefire agreement brokered between Washington and Tehran in April 2024. Clause 5 of the memorandum of understanding (MoU) required Iran to ensure unhindered commercial passage through the strait for 60 days, followed by a 30-day transition period to “instate” full traffic resumption. However, the U.S. has repeatedly rejected Iran’s interpretation, arguing that Tehran’s demands for route restrictions and prior authorization violate the spirit of the deal.
U.S. officials have accused Iran of obstructing shipping by enforcing the northern route—a corridor closer to Iranian waters—while stranding vessels in the southern lane. The U.S. Central Command (USCENTCOM) claims that since early May, 800+ commercial ships and 380 million barrels of crude oil have transited the strait with U.S. military support, despite Iran’s protests.
Iran’s IRGC Navy has countered that the U.S. has no authority to dictate maritime operations in the strait, asserting:
“Foreign entities have no role in the governance of the Strait of Hormuz or its reopening.”
The IMO Secretary-General, Arsenio Domínguez, had secured Iran’s temporary approval for the southern route to alleviate congestion, but Tehran withdrew its consent shortly after, forcing the UN agency to suspend its evacuation plan for stranded sailors.
Regional Backlash and the IMO’s Divided Response
The U.S.-led push to condemn Iran’s actions at the IMO Council meeting in London faced sharp criticism from Russia and China, who accused the resolution of being one-sided and beyond the IMO’s mandate. Russia’s delegation argued that the motion ignored the root causes of the crisis, while China described it as politicized, warning that it could undermine the organization’s neutrality.
The Gulf Cooperation Council (GCC) and European allies, however, pressed for a stronger stance, citing Iran’s escalatory rhetoric and military provocations, including attacks on U.S. bases in Kuwait and Bahrain following Washington’s airstrikes. The strikes, targeting Iranian drone and missile infrastructure, were framed by the U.S. as an attempt to deter future harassment of commercial shipping.
The Road Ahead: Compulsory Fees, IRGC Influence, and Long-Term Solutions
The feasibility of navigational fees in the Strait of Hormuz hinges on three critical factors:
1. Iran’s Internal Divisions – The IRGC’s hardline stance contrasts with moderate factions in Tehran that favor dialogue. A compromise may require concessions from both sides.
2. Regional Consensus – Qatar’s Foreign Ministry has warned that granting Iran de facto control over the strait could endanger maritime security, while Oman’s model remains too limited for Iran’s ambitions.
3. International Legal Safeguards – Any fee system must not infringe on the UN Convention on the Law of the Sea (UNCLOS), which guarantees transit passage without prior authorization.
The Energy Policy Research Group’s proposal—a regional governance model with transparent, non-compulsory fees—offers a potential middle ground. However, its success depends on Iran’s willingness to engage and the U.S.’s commitment to de-escalation.
As Donald Trump reiterated on social media that the ceasefire is “over” while threatening retaliatory strikes—including a hypothetical 1,000-missile barrage against Iran—the geopolitical stakes have never been higher. The Strait of Hormuz’s future will likely be decided not just by legal frameworks, but by the balance of power between Tehran and Washington, and whether Iran’s leadership can navigate internal divisions to avoid further confrontation.
For now, the maritime world watches as Oman’s legal experts prepare to present their case in Muscat, while diplomats scramble to prevent the strait from becoming a new flashpoint in an already volatile region.
A satellite view of the Strait of Hormuz, highlighting its strategic location between Iran and the United Arab Emirates, with key shipping lanes marked.
Iranian Foreign Minister Abbas Araghchi during a press conference, emphasizing Tehran’s stance on maritime sovereignty.
The Straits of Malacca and Singapore Cooperative Mechanism (MSMC) headquarters in Malaysia, showcasing the model Oman is attempting to replicate.
A U.S. Navy vessel transiting the Strait of Hormuz under escort, illustrating the ongoing military presence amid tensions.
