The Persian Gulf Strait Authority launched on 5 May 2026 with an email address, a domain name, a permit form, and IRGC enforcement authority behind it. Its visible apparatus is minimal. Its operational significance is not. What Tehran has done is formalise a coherent instrument for discretionary, sanctions-resilient pricing of one of the most consequential maritime chokepoints on earth, and it has done so through an administrative mechanism rather than a military one. That shift in method is deliberate and it matters.

Any vessel seeking to transit the Strait of Hormuz must now contact info@PGSA.ir, submit a Vessel Information Declaration covering ownership, insurance, crew manifests, cargo and intended routing, and await a permit. The permit is issued only after the PGSA approves the submission and a fee is paid. No official tariff has been published. According to reporting from Lloyd’s List and Windward Maritime, some vessels have already paid up to $2 million per transit, settled in Chinese yuan. Bitcoin has also been cited as an accepted payment method.

The boundary Iran has defined for the PGSA management zone uses the following exact language in its official graphic, published by @PGSA_IRAN on 18 May as the first post in a threaded series building out the full regulatory framework publicly: “The line connecting Kuh Mobarak in Iran and the south of Fujairah in the UAE in the east of the strait to the line connecting the end of Qeshm Island in Iran and Umm al-Qaiwain in the UAE in the west of the strait.” That boundary extends into waters that UNCLOS Article 37 designates as an international strait subject to the right of transit passage. Iran is not amending UNCLOS. It is declaring that UNCLOS does not apply to its management zone. That is a fundamentally different claim from anything Tehran has previously made about the Strait.

Official PGSA graphic published by @PGSA_IRAN, 18 May 2026. The map formally designates two distinct operational zones within the claimed Hormuz management area. Source: Persian Gulf Strait Authority / Iranian state.

The same official graphic published by @PGSA_IRAN makes a further distinction that most coverage has not addressed. The map formally colour codes two separate zones within the claimed management area: a pink and red zone labelled “Areas under Iranian armed forces oversight” and a blue zone labelled “Hormuz strait.” These are not informal designations. They are published in an official PGSA graphic carrying the authority’s circular seal logo, the same institutional branding that appears on all PGSA communications. Iran has not simply claimed management of the Strait as a single undifferentiated zone. It has mapped, colour coded, and formally designated distinct operational areas within it, each carrying different oversight implications for vessels transiting through them. That level of administrative detail is not the work of a temporary pressure campaign. It is the groundwork of a permanent regulatory body.

On 1 May 2026, the US Office of Foreign Assets Control issued an advisory that makes the PGSA’s practical function as a sanctions trap explicit. OFAC stated that payments to Iran for passage through the Strait expose both US and non-US persons to sanctions risk. The advisory is comprehensive: it covers cash, digital assets, in-kind transfers, and charitable donations to Iranian-linked entities. Non-US firms facilitating payments face potential secondary sanctions, specifically restrictions on access to the US financial system.

The PGSA therefore presents every shipping operator with a binary that has no clean resolution. A company that pays the transit fee is directly in breach of OFAC guidance and risks losing access to dollar-denominated trade and US correspondent banking. A company that refuses to pay leaves its vessel, crew, and cargo exposed to IRGC interdiction under the PGSA’s own enforcement authority. For a Very Large Crude Carrier hauling two million barrels at current Brent prices, the 20% cargo confiscation provision in the parliamentary bill would represent a loss approaching $45 million on a single transit.

War risk insurance rates for Hormuz transits have moved accordingly. The Lloyd’s market has repriced the corridor multiple times since February and is now factoring in the administrative non-compliance risk created by the PGSA in addition to the physical threat from IRGC small boat and drone operations. The combination of legal exposure and kinetic exposure is something insurers have not had to price simultaneously in this region since the tanker wars of the 1980s.

The PGSA is not a standalone executive order. It is the operational arm of a 12-article Law on Establishing Iran’s Sovereignty over the Strait of Hormuz that passed the National Security and Foreign Policy Committee of Iran’s parliament on 21 April 2026 and is now heading for a full chamber vote. The bill’s provisions are worth examining in detail because they are not temporary. They are structural.

Israeli vessels are banned under any circumstances, with no provision for future review. Vessels from nations deemed hostile require Supreme National Security Council approval on a case-by-case basis. Ships from countries that have sanctioned Iran or that have “damaged Iran” are denied passage until compensation is paid to the satisfaction of Iranian authorities. All transit fees must be denominated in Iranian rial. All shipping documents and communications must use the term Persian Gulf and not Arabian Gulf. The IRGC retains seizure authority for non-compliant vessels, with cargo confiscation of up to 20% of value as an available penalty.

These provisions do not read like negotiating positions. They read like the framework of a permanent regulatory regime. The compensation requirement for sanctioning nations in particular is not something a negotiator concedes easily, because conceding it means acknowledging the underlying Iranian sovereignty claim that makes the compensation demand legitimate. That is the legal trap embedded in the bill that most external commentary has not identified.

The Franco-British multinational maritime security initiative has pre-positioned significant naval assets south of the Suez Canal in preparation for a potential Hormuz escort mission. The Charles de Gaulle carrier strike group transited the Canal on 6 May 2026, confirmed by French armed forces, and is now operating in the Gulf of Aden and southern Red Sea. HMS Dragon, a Type 45 destroyer equipped with Sea Viper air defence missiles and Wildcat helicopters armed with Martlet anti-drone missiles, transited southbound on 9 May, confirmed by UK MOD with Crown copyright imagery.

The French armed forces have been explicit that the Charles de Gaulle deployment is defensive and legally bounded, and will not begin active escort operations until a sustained ceasefire or peace agreement is in place. Paris has also been careful to describe the mission as distinct from US combat operations. This positioning reflects France’s broader policy of maintaining operational independence from the American posture while remaining within the Western coalition framework.

The critical limitation of the naval response is that a warship alongside a tanker resolves the physical threat from IRGC interdiction. It does not resolve the administrative and legal claim the PGSA is encoding in Iranian statute. A vessel that transits Hormuz under naval escort without a PGSA permit is physically safe but legally non-compliant under the Iranian framework. When the sovereignty law passes a full parliamentary vote, that non-compliance becomes a basis for Iranian claims against the vessel’s flag state, insurer, and owner in any forum Tehran chooses to bring them. Naval escorts do not cancel legal liability under a sovereign statutory framework.

The PGSA launched on 5 May 2026, six days before the fourth round of US-Iran nuclear and sanctions negotiations in Oman. That timing is not incidental. Iran established the legal-administrative scaffolding of the PGSA before sitting down with American negotiators precisely so that the institution exists as a fact on the ground, and on the water, when any deal is eventually agreed.

Tehran’s public position is that the PGSA is a sovereign regulatory body outside the scope of the nuclear and sanctions discussions. Iran’s Foreign Ministry has described Hormuz management as an internal matter that does not require external negotiation. Washington has not publicly confirmed or denied that the PGSA’s status is on the table in Oman. That silence is itself informative: if the US had secured a private commitment from Iran to dissolve the PGSA as part of a deal, there would be political value in saying so publicly. The absence of that statement suggests the issue remains unresolved.

The practical consequence is that any deal agreed in Oman that does not explicitly address the PGSA leaves the authority in place as operational Iranian infrastructure. A ceasefire that ends the shooting war between the US and Iran but leaves the PGSA intact is a ceasefire that accepts, by omission, Iran’s administrative claim over the world’s most important oil transit chokepoint. Twenty percent of the world’s oil supply and roughly 30% of global LNG trade passes through Hormuz. The PGSA is not a sideshow to the Oman talks. It is the central strategic question that the Oman talks have not yet answered.