{
  "schemaVersion": 1,
  "version": "1.0",
  "title": "The Missing Identifier in Sanctions Enforcement",
  "subtitle": "Why every vessel designation needs an IMO number",
  "canonical": "https://arcnautical.com/reports/imo-vessel-identifier-enforcement/",
  "source": {
    "report": "https://arcnautical.com/reports/global-sanctioned-fleet-index/",
    "name": "US Treasury OFAC SDN CSV, vessel records",
    "url": "https://sanctionslistservice.ofac.treas.gov/api/PublicationPreview/exports/SDN.CSV",
    "currentSnapshot": {
      "listPublishDate": "2026-07-20",
      "retrievedAt": "2026-07-22T07:01:36.998Z",
      "vesselRecords": 1517,
      "file": "sources/ofac-vessels-2026-07-20.json",
      "sha256": "ea62f9da6bf06ca1441058f39f2fc653be81a518e8df42f4a78b837e70c7b8c9"
    },
    "previousSnapshot": {
      "listPublishDate": "2026-07-01",
      "retrievedAt": null,
      "vesselRecords": 1497,
      "file": "sources/ofac-vessels-2026-07-01.json",
      "sha256": "a0680c4bac60a6a6da7a70ab21e0c4862aa25e4d4f0243a50c08c99b3c9ef700"
    }
  },
  "imoScheme": {
    "name": "IMO ship identification number scheme",
    "url": "https://www.imo.org/en/ourwork/msas/pages/imo-identification-number-scheme.aspx",
    "statement": "The IMO number is assigned to a ship for identification purposes and is intended to remain unchanged through the ship’s life, subject to the scheme’s published rules."
  },
  "interval": {
    "from": "2026-07-01",
    "to": "2026-07-20",
    "days": 19
  },
  "totals": {
    "vesselRecords": 1517,
    "withImo": 1510,
    "withoutImo": 7,
    "withImoShare": 0.995385629531971,
    "additions": 20,
    "additionsWithImo": 20,
    "additionsWithoutImo": 0
  },
  "additions": [
    {
      "ofacId": "58096",
      "vesselName": "SEPEHR PAYAM",
      "imoNumber": "9110535",
      "flagState": "Iran",
      "vesselType": "Container Ship",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58097",
      "vesselName": "ERIKA",
      "imoNumber": "8721454",
      "flagState": "Iran",
      "vesselType": "General Cargo",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58098",
      "vesselName": "ARKANOOR 2",
      "imoNumber": "8727848",
      "flagState": "Iran",
      "vesselType": "General Cargo",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58099",
      "vesselName": "ARKANOOR 3",
      "imoNumber": "8832083",
      "flagState": "Iran",
      "vesselType": "General Cargo",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58100",
      "vesselName": "SEA CRUISER",
      "imoNumber": "8729963",
      "flagState": "Unknown",
      "vesselType": "General Cargo",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58101",
      "vesselName": "SEA CASTLE",
      "imoNumber": "8891572",
      "flagState": "Unknown",
      "vesselType": "General Cargo",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58102",
      "vesselName": "SEA ANCHOR",
      "imoNumber": "8858099",
      "flagState": "Unknown",
      "vesselType": "General Cargo",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58106",
      "vesselName": "CICCIO",
      "imoNumber": "9192442",
      "flagState": "Antigua & Barbuda",
      "vesselType": "Container Ship",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58107",
      "vesselName": "SHENTON WAY",
      "imoNumber": "9146314",
      "flagState": "Panama",
      "vesselType": "Container Ship",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58109",
      "vesselName": "TANJONG PAGAR 1",
      "imoNumber": "9404508",
      "flagState": "Panama",
      "vesselType": "Container Ship",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58110",
      "vesselName": "VIRENT",
      "imoNumber": "9332171",
      "flagState": "Panama",
      "vesselType": "Chemical/Oil Tanker",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58117",
      "vesselName": "HOPE 1",
      "imoNumber": "9514339",
      "flagState": "Antigua and Barbuda",
      "vesselType": "Bulk Carrier",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58118",
      "vesselName": "JADE",
      "imoNumber": "9418999",
      "flagState": "Antigua and Barbuda",
      "vesselType": "General Cargo",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58119",
      "vesselName": "OPAL",
      "imoNumber": "9467158",
      "flagState": "Antigua and Barbuda",
      "vesselType": "General Cargo",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58120",
      "vesselName": "ELPINIKI",
      "imoNumber": "9606015",
      "flagState": "Barbados",
      "vesselType": "General Cargo",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58121",
      "vesselName": "DARIKA",
      "imoNumber": "9506693",
      "flagState": "Panama",
      "vesselType": "Chemical/Oil Tanker",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58153",
      "vesselName": "GEMMA",
      "imoNumber": "9509097",
      "flagState": "Palau",
      "vesselType": "General Cargo",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58155",
      "vesselName": "NADIA",
      "imoNumber": "9122461",
      "flagState": "St Kitts & Nevis",
      "vesselType": "Container Ship",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58158",
      "vesselName": "SEA GALLEON",
      "imoNumber": "8843666",
      "flagState": "Unknown",
      "vesselType": "General Cargo",
      "programs": [
        "IRAN-EO13902"
      ]
    },
    {
      "ofacId": "58159",
      "vesselName": "PAYA LEBAR",
      "imoNumber": "9134232",
      "flagState": "Antigua & Barbuda",
      "vesselType": "Container Ship",
      "programs": [
        "IRAN-EO13902"
      ]
    }
  ],
  "missingImoRecords": [
    {
      "ofacId": "4238",
      "vesselName": "MAR AZUL",
      "flagState": "Cuba",
      "vesselType": "Tug",
      "programs": [
        "CUBA"
      ]
    },
    {
      "ofacId": "17104",
      "vesselName": "RYONG GUN BONG",
      "flagState": "Democratic People's Republic of Korea",
      "vesselType": "General Cargo",
      "programs": [
        "DPRK"
      ]
    },
    {
      "ofacId": "23424",
      "vesselName": "BONU 5",
      "flagState": "Malta",
      "vesselType": "-0-",
      "programs": [
        "LIBYA3"
      ]
    },
    {
      "ofacId": "27200",
      "vesselName": "ST. VITAMIN",
      "flagState": "St. Vincent and the Grenadines",
      "vesselType": "Pleasure Craft",
      "programs": [
        "UKRAINE-EO13661",
        "CYBER2",
        "ELECTION-EO13848"
      ]
    },
    {
      "ofacId": "33809",
      "vesselName": "FU YUAN YU 8683",
      "flagState": "China",
      "vesselType": "Fishing Vessel",
      "programs": [
        "GLOMAG"
      ]
    },
    {
      "ofacId": "37479",
      "vesselName": "SHELLEST",
      "flagState": "Russia",
      "vesselType": "Yacht",
      "programs": [
        "RUSSIA-EO14024"
      ]
    },
    {
      "ofacId": "37482",
      "vesselName": "NEGA",
      "flagState": "Russia",
      "vesselType": "Yacht",
      "programs": [
        "RUSSIA-EO14024"
      ]
    }
  ],
  "editorial": {
    "analysisBy": "Madhav PV",
    "role": "Founder, ArcNautical",
    "contact": "madhav@arcnautical.com",
    "externalPeerReview": false
  },
  "limitations": [
    "This report covers vessel records in the US Treasury OFAC SDN list only. It does not combine EU, UK, UN, or national lists.",
    "An IMO number is a durable hull identifier; it does not by itself establish current ownership, cargo, location, sanctions liability, or sanctions evasion.",
    "A missing IMO is a data-binding limitation, not evidence that a vessel is improperly identified or involved in sanctions evasion.",
    "Counts describe retained OFAC list records and the specified publication interval, not vessels currently trading or transmitting AIS."
  ]
}