# Iran Doubles Non-Compliant Vessel List: Gulf Supplier Work > Iran's Persian Gulf Strait Authority doubled its 'non-compliant' vessel list. What Gulf chandlers, bunker suppliers and agents must now screen before quoting. URL: https://vesselreach.si/blog/iran-doubles-non-compliant-vessel-list-gulf-supplier-work | Published: 2026-11-03 | Industry news | Topic: Carrier service and surcharge changes ## In short Iran's Persian Gulf Strait Authority doubled its list of non-compliant vessels in early November 2026, according to The Maritime Executive. Gulf ship chandlers, bunker suppliers, port agents and repair yards should screen each vessel against that list, confirm its status in writing with the agent or manager, and record the check in the ETA confirmation before quoting or committing a barge, truck or yard slot. ## Key takeaways - Iran's Persian Gulf Strait Authority doubled its non-compliant vessel list in early November 2026, reported by The Maritime Executive. - No vessel names or listing criteria were published in the summary, so suppliers must confirm a vessel's status directly. - Chandlers, bunker suppliers, port agents and repair yards should screen the list before quoting, fixing a stem or holding a slot. - Ask the agent or manager for the vessel's current status in writing and record the check in the ETA confirmation. ## At a glance - **What: What did Iran do?** Iran's Persian Gulf Strait Authority released a new list of vessels it calls non-compliant, doubling the number on the list. ([The Maritime Executive](https://maritime-executive.com/article/iran-increases-pressure-on-shipping-doubling-non-compliant-list)) - **Who: Who released the list?** The so-called Persian Gulf Strait Authority, an Iranian body that polices traffic through the Strait of Hormuz. ([The Maritime Executive](https://maritime-executive.com/article/iran-increases-pressure-on-shipping-doubling-non-compliant-list)) - **Where: Where does it apply?** The list concerns traffic through the Strait of Hormuz, the Gulf waterway between Iran and Oman. ([The Maritime Executive](https://maritime-executive.com/article/iran-increases-pressure-on-shipping-doubling-non-compliant-list)) - **When: When was the list released?** The authority released the new list on Monday, according to The Maritime Executive, in a report dated 3 November 2026. ([The Maritime Executive](https://maritime-executive.com/article/iran-increases-pressure-on-shipping-doubling-non-compliant-list)) - **Why: Why does it matter beyond Iran?** The Houthis have intensified attacks on Yemen's IRG forces and widened their reach across the Gulf region, according to The Maritime Executive. ([The Maritime Executive](https://maritime-executive.com/article/war-in-yemen-now-impacting-the-whole-gulf-region)) - **How: How does the threat work?** A 2026 study in Small Wars and Insurgencies found the Houthi threat operates less as a classical blockade than as a mechanism of risk creation. ([Small Wars and Insurgencies (Routledge)](https://doi.org/10.1080/09592318.2026.2747229)) Iran's Persian Gulf Strait Authority doubled the number of vessels on its 'non-compliant' list on Monday, according to [The Maritime Executive](https://maritime-executive.com/article/iran-increases-pressure-on-shipping-doubling-non-compliant-list). For ship chandlers, bunker suppliers, port agents and repair yards working Gulf ports, that means one more screening step before a quotation goes out. ## What happened and when The new list was released without fanfare by the authority, which Iran uses to police traffic through the Strait of Hormuz. The Maritime Executive reports that the list doubled the number of vessels it calls non-compliant ([The Maritime Executive](https://maritime-executive.com/article/iran-increases-pressure-on-shipping-doubling-non-compliant-list), 3 November 2026). No vessel names or criteria were published in the summary. This sits alongside a wider security picture. The Houthis have intensified attacks on Yemen's Internationally Recognized Government forces and widened their reach across the Gulf region, according to [The Maritime Executive](https://maritime-executive.com/article/war-in-yemen-now-impacting-the-whole-gulf-region) (16 October 2026). Oil prices held near a five-month high on 20 October as traders assessed fresh attacks on vessels and Houthi strikes on Saudi energy infrastructure, [Hellenic Shipping News](https://www.hellenicshippingnews.com/oil-hovers-near-five-month-high-as-hormuz-houthi-attacks-threaten-supply-recovery/) reported that day. ## Why a list matters more than a threat A public list creates a paper trail. A vessel named on it may face delays, extra checks or refused services, and the companies that serve it inherit the same questions. A 2026 study in *Small Wars and Insurgencies* found that the Houthi threat operates less as a classical blockade than as a mechanism of risk creation ([Routledge](https://doi.org/10.1080/09592318.2026.2747229)). Lists like Iran's work the same way: they don't stop ships, they change what a supplier is willing to sign. Cyber risk adds another layer. A 2020 study in *IEEE Access* assessed the security of maritime container terminal software systems and found vulnerabilities that leave port and terminal systems open to attack ([IEEE Access](https://doi.org/10.1109/access.2020.3008395)). A supplier holding vessel and crew data is part of that surface. ## What it means commercially for service providers - **Chandlers:** a vessel on the list may still order stores, but the order can be held at the gate or the delivery refused. Check the list before confirming a delivery slot. - **Bunker suppliers:** a stem for a listed vessel can tie up a barge and a credit line. Confirm the buyer's identity and the vessel's status before fixing. - **Port agents:** the PDA (port disbursement account, the estimate of port costs advanced for a call) may need a clause covering delays caused by compliance checks. - **Repair yards:** a vessel that cannot move freely may not arrive for a planned dry-docking. Keep the slot flexible and document the reason. The same discipline applies to ownership. A 2019 study in *IEEE Access* analysed Vietnam's embeddedness in the global maritime network and showed how port and shipping flows connect companies across clusters ([IEEE Access](https://doi.org/10.1109/access.2019.2923528)). In practice, the company that books the service may not be the one that owns the risk. ## How to respond this week 1. Add the Iranian list to your pre-quote checklist, alongside sanctions and credit checks. 2. Ask the agent or manager for the vessel's current status in writing before you commit a barge, a truck or a yard slot. 3. Record the check in the ETA (estimated time of arrival, the vessel's expected arrival time at the port) confirmation so the file shows what you knew and when. 4. Brief the sales team so no one promises service to a vessel the operations team will later refuse. ## How VesselReach helps VesselReach turns vessel movements at your target ports into a screened sales pipeline. For Gulf work under this kind of pressure, three capabilities matter: - **Vessel intelligence** shows vessels near your ports and expected arrivals, which means you can check a vessel's status before the ETA rather than after the enquiry. - **AI company targeting** identifies the owner, manager or operator behind each vessel, which means you know who is accountable for the service request. - **Automated follow-ups** keep the conversation moving across email, WhatsApp and phone, which means a compliance delay does not become a lost opportunity. Book a VesselReach demo to see how the workflow fits your Gulf ports. ## Key facts - According to The Maritime Executive, Iran's Persian Gulf Strait Authority doubled the number of vessels on its 'non-compliant' list on Monday, 3 November 2026, without publishing vessel names or criteria. ([The Maritime Executive](https://maritime-executive.com/article/iran-increases-pressure-on-shipping-doubling-non-compliant-list)) - According to The Maritime Executive (16 October 2026), the Houthis intensified attacks on Yemen's Internationally Recognized Government forces and widened their reach across the Gulf region. ([The Maritime Executive](https://maritime-executive.com/article/war-in-yemen-now-impacting-the-whole-gulf-region)) - According to Hellenic Shipping News (20 October 2026), oil prices held near a five-month high as traders assessed fresh attacks on vessels and Houthi strikes on Saudi energy infrastructure. ([Hellenic Shipping News](https://www.hellenicshippingnews.com/oil-hovers-near-five-month-high-as-hormuz-houthi-attacks-threaten-supply-recovery/)) - A 2026 study in Small Wars and Insurgencies (Routledge) found that the Houthi threat operates less as a classical blockade than as a mechanism of risk creation. ([Small Wars and Insurgencies (Routledge)](https://doi.org/10.1080/09592318.2026.2747229)) - A 2020 study in IEEE Access assessed the security of maritime container terminal software systems and found vulnerabilities that leave port and terminal systems open to attack. ([IEEE Access](https://doi.org/10.1109/access.2020.3008395)) ## Frequently asked questions ### What is Iran's 'non-compliant' vessel list? It is a list released by Iran's Persian Gulf Strait Authority naming vessels it considers non-compliant with its rules for traffic through the Strait of Hormuz. The authority doubled the number of vessels on the list in early November 2026, according to The Maritime Executive. ([The Maritime Executive](https://maritime-executive.com/article/iran-increases-pressure-on-shipping-doubling-non-compliant-list)) ### How should a ship chandler act on the list? Check the list before confirming a delivery slot, ask the agent or manager for the vessel's status in writing, and record the check in the ETA confirmation. VesselReach's vessel intelligence helps you see arrivals early enough to do this before the enquiry arrives. ### Does the list affect bunker suppliers? Yes. A stem for a listed vessel can tie up a barge and a credit line while checks are resolved. Confirm the buyer's identity and the vessel's status before fixing. VesselReach's AI company targeting helps identify the company responsible for the stem. ### What is the wider security context? The Houthis have intensified attacks on Yemen's Internationally Recognized Government forces and widened their reach across the Gulf, according to The Maritime Executive. Oil prices held near a five-month high in October 2026 as traders assessed attacks on vessels. ([The Maritime Executive](https://maritime-executive.com/article/war-in-yemen-now-impacting-the-whole-gulf-region)) ### How can a port agent protect the PDA? Include a clause covering delays caused by compliance checks in the port disbursement account, and document the reason for any delay. VesselReach's automated follow-ups help keep the owner or manager informed while the check is resolved. ## Sources 1. [Iran Increases Pressure on Shipping Doubling “Non-Compliant” List](https://maritime-executive.com/article/iran-increases-pressure-on-shipping-doubling-non-compliant-list), The Maritime Executive, 2026-11-03 2. [War in Yemen Now Impacting the Whole Gulf Region](https://maritime-executive.com/article/war-in-yemen-now-impacting-the-whole-gulf-region), The Maritime Executive, 2026-10-16 3. [Oil hovers near five-month high as Hormuz, Houthi attacks threaten supply recovery](https://www.hellenicshippingnews.com/oil-hovers-near-five-month-high-as-hormuz-houthi-attacks-threaten-supply-recovery/), Hellenic Shipping News, 2026-10-20 4. [An In-Depth Security Assessment of Maritime Container Terminal Software Systems](https://doi.org/10.1109/access.2020.3008395), IEEE Access, 2020-01-01 5. [Vietnam’s Connectivity and Embeddedness in the Maritime Silk Road and Global Maritime Network](https://doi.org/10.1109/access.2019.2923528), IEEE Access, 2019-01-01 6. [The evolution of the Houthi weapons arsenal and its implications for maritime security and cargo shipping in the Red Sea](https://doi.org/10.1080/09592318.2026.2747229), Small Wars and Insurgencies (Routledge), 2026-10-12 ## More on this topic Iran's Persian Gulf Strait Authority doubled its list of non-compliant vessels in early November 2026. For maritime service providers, the practical question is how to screen a vessel before quoting. Ship chandlers, bunker suppliers, port agents and repair yards should check the list, confirm the vessel's status in writing with the agent or manager, and record the check in the ETA confirmation. The wider Gulf security picture, including Houthi attacks, adds urgency. VesselReach helps by showing vessel arrivals early and identifying the company behind each vessel. Screening a vessel against Iran's non-compliant list is now a pre-quote step for Gulf service providers, not an afterthought. The Persian Gulf Strait Authority doubled the list in early November 2026 without publishing vessel names or criteria, so the only reliable check is a written status confirmation from the agent or manager before a barge, truck or yard slot is committed. Recording that check in the ETA confirmation keeps the file clear on what was known and when. Iran's Persian Gulf Strait Authority polices traffic through the Strait of Hormuz, and its doubled non-compliant list changes what a Gulf ship chandler, bunker supplier, port agent or repair yard will sign. The Maritime Executive reported the release on 3 November 2026 without vessel names or criteria, so the workable check is a written status confirmation from the vessel's agent or manager before a barge, truck or yard slot is committed. Houthi attacks on Yemen's Internationally Recognized Government forces and on Saudi energy infrastructure, reported by The Maritime Executive and Hellenic Shipping News, keep the wider Persian Gulf risk live. Record the screening in the ETA confirmation so the file shows what was known and when. --- VesselReach, built by CatalystIQ. CatalystIQ Data Classification and Analysis Services, Al Qusais, Dubai, P.O. Box 129882, United Arab Emirates. info@catalystiq.ae, +971 58 599 7894. Book a demo: https://vesselreach.si/#demo. Pricing: contact us for a quote (https://vesselreach.si/pricing).