1APR

OFAC lets the ship repair licence lapse

3 min read

16:30UTC

Iran General Licence DD expired on 23 September with no successor, ending standing permission for overflight payments, bunkering and emergency ship repairs. A fourth authority, covering aircraft safety, was left off its list and lost cover on 8 September with no transition at all.

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Key takeaway

The permission covering emergency repairs near Iranian waters ended by expiry, with no document marking it.

General Licence DD expired on Wednesday 23 September 2026 with no successor⁠¹. A general licence is a standing permission to do something American sanctions would otherwise forbid: anyone may use it without applying, and it carries an expiry date. If nobody signs a successor, the permission simply stops. No announcement is required when one lapses, and OFAC (the Treasury's Office of Foreign Assets Control, which writes and enforces American sanctions) made none.

General Licence DD had held open a wind-down window for three suspended authorities, permitting anyone to finish business already under way and to start none. Those numbers point to addresses in the Code of Federal Regulations, the American rulebook. Those three were paying to fly over Iranian airspace (31 CFR 560.522), refuelling a ship or making emergency repairs to one (560.529), and flying certain civil aircraft into Iran and out again under Iran General License J-1⁠².

A fourth authority never got a window at all. Aircraft safety at 31 CFR 560.528 was left off General Licence DD's list and lost its cover on Tuesday 8 September 2026 with no transition⁠³. Publishing the licence on 11 September had already put the expiry date on the public record twelve days in advance, so the lapse was foreseeable to anyone reading the gazette and invisible to everyone else. OFAC lists no successor, and the most recent Iran general licence on its live list is General Licence AA, dated 24 August 2026⁠⁴.

Refuelling, which the trade calls bunkering, and emergency repairs were carved out for safety rather than for commerce. A US person or US-linked insurer helping a ship in distress near Iranian waters now needs a licence of its own. The narrower safety and environmental terms of General Licence T are not available: it expired on 22 February 2026 and reached only nine blocked vessels named in its annex. In practice a salvage call near Iran now starts with a lawyer, and the delay falls on whichever vessel is burning.

Deep Analysis

In plain English

American sanctions make it illegal for American companies and banks to do business connected with Iran. Because a blanket ban would stop even useful things, the Treasury Department issues documents called general licences that carve out exceptions. One of those, General Licence DD, let people keep paying for a handful of practical services while they closed down existing business: fees for flying over Iranian airspace, refuelling and emergency repairs for ships, and returning certain civil aircraft. It ran out on 23 September 2026 and nothing replaced it. A separate exception covering aircraft safety had already stopped working on 8 September, with no transition at all, because it was left off the list in the first place. The Treasury made no announcement. In practice that means an American insurer or company helping a ship in trouble near Iranian waters, or paying a fee to fly over Iran, now has to apply for individual permission or rely on a narrower safety rule. That takes time, and a ship on fire does not have time.

Deep Analysis

Root Causes

General Licence DD only ever authorised transactions ordinarily incident to winding down business previously permitted under three suspended authorities: 31 CFR 560.522 on allowable payments for overflights of Iranian airspace, 31 CFR 560.529 on bunkering and emergency ship repairs, and General Licence J-1 on the temporary sojourn of certain civil aircraft. A wind-down licence expires by design; its end needs no announcement and makes no news.

The aircraft safety authority at 31 CFR 560.528 was never on that wind-down list at all, so it lost cover on 8 September with no transition window rather than the twelve days of public notice the other three received. Nothing in the published record explains the exclusion. OFAC's live Iran general licence list now runs only to General Licence AA of 24 August 2026, so a compliance officer looking for the successor finds silence and must read it as a decision.

Escalation

Sideways, with the risk sitting in a gap rather than in a decision. The trigger to watch is the first marine casualty near Iranian waters in which a US-linked insurer or salvor declines to act without a specific licence, which would turn a paperwork lapse into a documented loss of life or cargo. The counter-trigger is OFAC publishing a DD-1 or a successor to the expired General Licence T, either of which would show the expiry was an oversight rather than a policy.

What could happen next?

Risk
A vessel in distress near Iranian waters may now wait on a specific licence application before an American-linked insurer or salvage operator can assist.
Immediate · Assessed
Meaning
The absence of any announcement means the policy change reaches compliance departments only through the disappearance of a document from a web page.
Immediate · Reported
Consequence
Airlines still paying Iranian overflight fees under the old authority must either stop, apply individually, or accept the exposure, which pushes more traffic onto Gulf routings that the European Union Aviation Safety Agency has itself placed at caution level.
Short term · Assessed

Source Landscape

This story draws on neutral-leaning sources

Primary parallel: OFAC issued Iran General Licence X on 21 June 2026 and revoked it in full on 7 July, sixteen days later, allowing wind-down only to 17 July. The same office has now let a second authorisation lapse without a successor, so a short life for an Iran general licence has a recent precedent on the same programme.

Counter-parallel: General Licence T, covering safety and environmental transactions and dated 23 January 2026, expired at 12:01am eastern time on 22 February 2026, and it reached only the nine blocked vessels named by IMO number in its own annex. No safety carve-out on this programme has survived the war, which is why a shipowner's only remaining route is a specific licence application.

The exposure sits with marine insurers and the protection and indemnity clubs rather than with traders. Bunkering and emergency repairs is a safety carve-out, so with 31 CFR 560.529 suspended and the wind-down window shut, a US person or US-linked insurer assisting a vessel in distress in or near Iranian waters now needs a specific licence. The narrower safety and environmental authorisation in General Licence T expired on 22 February 2026 and reached only the nine vessels named in its annex, so no standing route is left to argue into.

War-risk cover for a Hormuz transit already runs at 6 to 9 per cent of hull value on Lloyd's List Intelligence and Dryad Global figures. A casualty that cannot be assisted without a specific licence application adds legal delay to a salvage clock measured in hours, and that risk is priced into the premium before any casualty happens.

Sources:US Treasury Office of Foreign Assets Control·US Treasury Office of Foreign Assets Control

Mentions:General Licence DD →OFAC →US Treasury →General Licence J-1 →Iran →Code of Federal Regulations →General License X →General Licence T →Lloyd's List →General Licence AA →

First Reported In

Update #180 · Washington left Iraq as it answered Tehran

US Treasury Office of Foreign Assets Control· 1 Oct 2026

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Causes and effects

Caused by

Iran aviation licence expires 23 Sept

The expiry date reported in advance arrived with no extension signed, so the wind-down authority ended by lapse.

Reported 21 Sept 2026

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Two Iran wind-down windows shut four days apart

Gazetting General Licence DD on 11 September put its expiry date on the public record twelve days before it took effect.

Occurred 11 Sept 2026

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This Event

OFAC lets the ship repair licence lapse

A permission that merchant shipping relies on near Iranian waters has ended by expiry rather than by decision, so nothing marks its passing.

Different Perspectives

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Radoslaw Sikorski

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Ministry of External Affairs (India)

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European Council

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Donald Trump

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Written with AI from Lowdown's published reporting. Not individually reviewed by an editor. Editorial standards.