Maritime Sanctions Data
The OFAC-designated vessel fleet by sanctions regime
Data as of 2026-10-15 · source: U.S. Treasury OFAC Specially Designated Nationals (SDN) list
OFAC has designated 1,559 vessels across 7 sanctions regimes; the largest is Iran with 670 vessels (43%) — data as of 2026-10-15.
| Sanctions regime | vessels | % of total | |
|---|---|---|---|
| Iran | 670 | 43% | |
| Russia | 446 | 28.6% | |
| Other program | 174 | 11.2% | |
| North Korea (DPRK) | 105 | 6.7% | |
| Terror-finance / proliferation | 101 | 6.5% | |
| Venezuela | 60 | 3.8% | |
| Cuba | 3 | 0.2% | |
| Total | 1,559 | 100% |
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Methodology
- Single-regime assignment: a vessel under several OFAC programs is counted once, under its strongest state regime (priority: DPRK → Iran → Russia → Venezuela → Syria → Cuba → terror-finance/proliferation → other), so the distribution sums exactly to the vessel count.
- Raw per-program tallies (which legitimately double-count vessels under multiple programs) are in the downloadable JSON, not this table.
Source: U.S. Treasury OFAC Specially Designated Nationals (SDN) list. Computed by the same ArcNautical engine behind arcnautical.com/check (commit 4df8f50df). Full scoring detail: methodology.
FAQ
Which sanctions regime has the most designated vessels?
As of 2026-10-15, Iran has the most OFAC-designated vessels — 670 of 1,559 (43%).
Are vessels under multiple sanctions programs double-counted?
No. Each vessel is assigned to a single strongest regime so the distribution sums to the total. Raw per-program counts that allow overlap are published separately in the JSON download.