Maritime Sanctions Data
Vetting-grade distribution across the screened vessel universe
Data as of 2026-07-26 · source: ArcNautical vessel vetting (PSC detention + Paris/Tokyo MoU flag performance + vessel age + ownership opacity, over the OFAC-anchored screened set)
Across 2,189 screened vessels, 78.8% sit at vetting grade D–E (elevated-to-critical risk) and 9.9% at grade A–B (low risk) — data as of 2026-07-26.
| Vetting grade | vessels | % of total | |
|---|---|---|---|
| A | 10 | 0.5% | |
| B | 206 | 9.4% | |
| C | 249 | 11.4% | |
| D | 92 | 4.2% | |
| E | 1,632 | 74.6% | |
| Total | 2,189 | 100% |
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 2261ca25). Full scoring detail: methodology.
FAQ
What share of sanctioned vessels are high-risk on vetting?
As of 2026-07-26, 78.8% of 2,189 screened vessels sit at vetting grade D–E (elevated-to-critical risk), versus 9.9% at grade A–B (low risk).
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.