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On 18 May 2026, Iran formally announced the Persian Gulf Strait Authority, the institutional body administering its toll-booth corridor through the Strait of Hormuz. Tehran has built a chokepoint authority. It is not, on its present design, the configuration the operator class, the United States, China, the GCC, or the site has been arguing for. This post reads the PGSA in detail and identifies the six features that separate it from a treaty-backed authority on the Suez or Panama model.

The 28 April Jeddah communique called for a ‘permanent, long-term arrangement’ for the Strait of Hormuz. The 5 May US-Bahrain UN draft resolution, with the support of Saudi Arabia, the UAE, Kuwait and Qatar, asserted freedom of navigation in accordance with international law as the operating principle. The GCC has, in ten days, moved from regional consultation to formal multilateral institutional positioning. This post reads where the alignment sits and what it implies for the configuration that would close the gap.

The United States 15-point proposal asks for the chokepoint as a status (reopening). The Iranian 14-point response asks for it as a structure (new mechanism). The two are mirror-image and the gap between them has, in principle, one institutional answer the existing chokepoint authorities at Suez and Panama have been operating for decades. This post reads the geometry of the gap and what fills it.

Iran’s 14-point proposal, transmitted via Pakistan and made public on 2-3 May 2026, includes a numbered demand for ‘a new mechanism for the Strait of Hormuz.’ Whatever the substance Tehran has in mind, the form has changed: for the first time, the institutional question for the chokepoint is on the bilateral diplomatic record. This post reads only that one element of the proposal and examines what a working mechanism would have to address.

On Persian Gulf Day, April 30, Iran’s Supreme Leader announced a new framework for managing the Strait of Hormuz: rial-denominated proceeds, surcharge for sanctions countries, the General Staff of the Armed Forces as administering body, and an invitation to GCC participation. Set side by side with treaty-backed practice at Suez and Panama, the framework is a unilateral authority claim that clarifies, rather than closes, the institutional gap.

On 25 April the International Chamber of Shipping, representing more than 80 percent of global merchant tonnage, formally stated that both US and Iranian seizures violate international law and that Iran’s stated wish to charge tolls at Hormuz has no basis in international law. It is the first time the operator class has named a public position on the toll regime itself, and the position is exactly the one a treaty-backed alternative authority would need to take.

Iran calls US interdictions piracy. The US calls Iran’s toll extortion. Both are arguing over a treaty, UNCLOS, that neither has ratified. That is the institutional core of the crisis: a dual blockade of one-fifth of global seaborne energy, invoking legal norms from a treaty both parties have explicitly declined to join. The flag states of the trapped ships have no tribunal. A ceasefire reopens the water. Only a treaty resolves the governance vacuum.

PM Mitsotakis called Iran’s Hormuz tolls completely unacceptable on 8 April. Nine days later a Greek owned VLCC, the Atokos, transited the strait by paying Iran. Greek shipowners hold roughly 20 percent of world merchant tonnage. The gap between diplomatic rejection and commercial payment is exactly what a legitimate multilateral authority resolves.

On Sunday 19 April, USS Spruance fired on and disabled the Iranian flagged cargo ship Touska in the Gulf of Oman. Marines boarded and took custody. First seizure of the crisis. Tehran has vowed retaliation. The line between blockade and seizure has been crossed, and it is structurally difficult to walk back.

On 19 April, a spokesperson for Iran’s Central Headquarters of the Holy Prophet announced the official operating rule for the Strait of Hormuz: vessels that pay faster get priority, vessels that do not are delayed. Iran has built, unilaterally and under international rejection, a working toll system. Every design choice is the inverse of what makes Suez and Panama legitimate.