Maritime Sanctions Data
Vetting-grade distribution across the screened vessel universe
Data as of 2026-10-11 · source: ArcNautical vessel vetting (PSC detention + Paris/Tokyo MoU flag performance + vessel age + ownership opacity, over the OFAC-anchored screened set)
Across 2,224 screened vessels, 94.7% sit at vetting grade D–E (substandard or unacceptable) and 1.8% at grade A–B (acceptable). Data as of 2026-10-11.
| Vetting grade | vessels | % of total | |
|---|---|---|---|
| A | 5 | 0.2% | |
| B | 35 | 1.6% | |
| C | 78 | 3.5% | |
| D | 195 | 8.8% | |
| E | 1,911 | 85.9% | |
| Total | 2,224 | 100% |
Screen any hull by IMO from code, no key: GET https://arcnautical.com · API docs
Methodology
- The vetting grade (A best – E worst) is the composite the ArcNautical vessel dossier computes: port-state-control detentions (30%), flag-state Paris/Tokyo MoU performance (25%), vessel age (15%), inspection gap (10%), and ownership opacity (20%). A confirmed sanctions match floors the grade.
- Computed over ArcNautical's screened vessel universe (anchored on the OFAC-designated fleet), not the entire world merchant fleet.
Source: ArcNautical vessel vetting (PSC detention + Paris/Tokyo MoU flag performance + vessel age + ownership opacity, over the OFAC-anchored screened set). Computed by the same ArcNautical engine behind arcnautical.com/check (commit 4df8f50df). Full scoring detail: methodology.
FAQ
What share of sanctioned vessels grade D or E on vetting?
As of 2026-10-11, 94.7% of 2,224 screened vessels are grade D–E (substandard or unacceptable). 1.8% are grade A–B (acceptable).
How is the vetting grade calculated?
A weighted composite of port-state-control detention history (30%), flag-state Paris/Tokyo MoU performance (25%), vessel age (15%), inspection gap (10%), and ownership opacity (20%), graded A (best) to E (worst). It is the same grade the ArcNautical vessel dossier reports.