Japan Flag State Detention Rate & PSC Performance
Paris MoU:white
Tokyo MoU:white
Paris MoU Rate
0.4%
rolling 3-year (2023-2025)
Tokyo MoU Rate
2.4%
rolling 3-year (2023-2025)
Paris MoU Rank
#5
by detention rate
Paris MoU Inspections
244
1 detentions
Tokyo MoU Inspections
625
15 detentions
Detentions (36m)
5
1 monitored, 4 from records
Detentions by Year
| Year | Detentions |
|---|---|
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 2 |
Detentions by MoU Region
| MoU | Detentions |
|---|---|
| paris | 2 |
| tokyo | 2 |
Top Detention Ports
| Port | Detentions |
|---|---|
| Tianjin | 1 |
| South Shields | 1 |
| Dalian | 1 |
| Shanghai | 1 |
| Southampton | 1 |
Top Deficiency Categories
Recent Detentions
| Date | Vessel | Port | Source |
|---|---|---|---|
| 2026-10-10 | EMERALD HORIZON | Tianjin | MoU |
| 2026-04-03 | IMO 9273894 | Dalian | records |
| 2025-09-23 | IMO 9409340 | Shanghai | records |
| 2024-12-26 | IMO 9498597 | Southampton | records |
| 2023-12-28 | IMO 9209506 | South Shields | records |
Frequently Asked Questions
What is Japan's detention rate?
Japan has a Paris MoU detention rate of 0.4% over a rolling three-year window (rolling 3-year (2023-2025)), based on 244 inspections and 1 detentions. It is on the white list.
What list is Japan on?
Japan is on the Paris MoU white list (rolling 3-year (2023-2025)). Under Tokyo MoU, it is on the white list.
Official rates are from the 2025 Paris MoU and 2025 Tokyo MoU annual reports, calculated over a rolling three-year window. Detention counts from monitoring cover the most recent 36 months.
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