⚓   TOKYO MoU · ASIA-PACIFIC PSC 2025 EDITION

Flag Performance
Index

High, Medium and Low Performance flag rankings based on Tokyo MoU Port State Control inspection and detention records.

VALIDITY PERIOD July 1, 2026 – June 30, 2027
DATA PERIOD 2023–2025
LAST VERIFIED October 22, 2026
OFFICIAL SOURCE Tokyo MoU ↗
32 High Performance

Higher-performing flag administrations under the Tokyo MoU methodology.

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19 Medium Performance

Intermediate flag performance classification.

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15 Low Performance

Lower-performing flag administrations under the Tokyo MoU methodology.

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Flag Performance Rankings Showing 32 of 32 flags
Rank Flag Administration Inspections 2023–2025 Detentions 2023–2025 Detention Rate Calculated % Low to Medium Limit Medium to High Limit Excess Factor Performance
1 China 3,188 13
0.41%
— 199 -2.41 High
2 Hong Kong, China 8,006 57
0.71%
— 522 -2.12 High
3 Singapore 6,863 57
0.83%
— 445 -1.99 High
4 Korea, Republic of 3,069 41
1.34%
— 191 -1.76 High
5 Taiwan, China 273 1
0.37%
— 12 -1.74 High
6 Isle of Man (UK) 433 6
1.39%
— 21 -1.42 High
7 Norway 839 15
1.79%
— 46 -1.42 High
8 Marshall Islands 9,862 262
2.66%
— 648 -1.36 High
9 Bahamas 2,029 53
2.61%
— 123 -1.24 High
10 Malaysia 563 12
2.13%
— 29 -1.18 High
11 Philippines 446 9
2.02%
— 22 -1.15 High
12 Malta 2,824 84
2.97%
— 175 -1.15 High
13 Denmark 648 15
2.31%
— 34 -1.14 High
14 Greece 635 15
2.36%
— 33 -1.12 High
15 Japan 625 15
2.40%
— 33 -1.10 High
16 Liberia 13,683 476
3.48%
— 908 -1.08 High
17 Cayman Islands (UK) 134 1
0.75%
— 4 -1.06 High
18 Saudi Arabia 87 0
0.00%
— 2 -0.98 High
19 Germany 162 2
1.23%
— 5 -0.97 High
20 Portugal 1,161 37
3.19%
— 66 -0.94 High
21 Thailand 707 21
2.97%
— 38 -0.90 High
22 Bermuda (UK) 112 1
0.89%
— 3 -0.81 High
23 Viet Nam 2,470 96
3.89%
— 152 -0.80 High
24 Panama 26,416 1,198
4.54%
— 1780 -0.75 High
25 Cyprus 1,385 56
4.04%
— 81 -0.65 High
26 Indonesia 732 27
3.69%
— 39 -0.64 High
27 France 164 4
2.44%
— 6 -0.44 High
28 United Kingdom (UK) 383 14
3.66%
— 18 -0.43 High
29 Tuvalu 237 9
3.80%
— 10 -0.11 High
30 United States of America 179 6
3.35%
— 6 -0.10 High
31 Antigua and Barbuda 718 38
5.29%
— 39 -0.03 High
32 Kuwait 30 0
0.00%
— 0 0.00 High
Rank Flag Administration Inspections 2023–2025 Detentions 2023–2025 Detention Rate Calculated % Low to Medium Limit Medium to High Limit Excess Factor Performance
33 Belgium 109 3
2.75%
13 3 0.03 Medium
34 Russian Federation 471 24
5.10%
43 23 0.03 Medium
35 Jamaica 91 3
3.30%
11 2 0.13 Medium
36 Italy 127 5
3.94%
14 4 0.13 Medium
37 Luxembourg 49 1
2.04%
7 0 0.15 Medium
38 Gibraltar (UK) 38 1
2.63%
6 0 0.23 Medium
39 Sweden 43 2
4.65%
6 0 0.34 Medium
40 Netherlands 298 19
6.38%
29 13 0.38 Medium
41 Niue 53 3
5.66%
7 0 0.40 Medium
42 Guinea-Bissau 66 4
6.06%
9 1 0.42 Medium
43 India 215 14
6.51%
22 8 0.42 Medium
44 Switzerland 48 3
6.25%
7 0 0.45 Medium
45 Türkiye 45 3
6.67%
6 0 0.48 Medium
46 Barbados 240 17
7.08%
24 10 0.51 Medium
47 Bangladesh 388 29
7.47%
36 18 0.60 Medium
48 Croatia 34 3
8.82%
5 0 0.61 Medium
49 Saint Vincent and the Grenadines 58 6
10.34%
8 0 0.76 Medium
50 Gabon 99 10
10.10%
12 2 0.83 Medium
51 Vanuatu 111 12
10.81%
13 3 0.93 Medium
Rank Flag Administration Inspections 2023–2025 Detentions 2023–2025 Detention Rate Calculated % Low to Medium Limit Medium to High Limit Excess Factor Performance
52 Belize 2,666 253
9.49%
209 — 1.53 Low
53 Djibouti 41 7
17.07%
6 — 1.55 Low
54 Sint Maarten (Kingdom of the Netherlands) † 39 7
17.95%
6 — 1.70 Low
55 Mongolia 290 39
13.45%
28 — 2.11 Low
56 Comoros 172 25
14.53%
18 — 2.14 Low
57 Sierra Leone 1,197 163
13.62%
99 — 2.68 Low
58 Cook Islands 112 20
17.86%
13 — 2.77 Low
59 Iran (Islamic Republic of) 55 12
21.82%
7 — 3.12 Low
60 Palau 395 66
16.71%
36 — 3.25 Low
61 Sao Tome and Principe 225 41
18.22%
23 — 3.39 Low
62 Zanzibar (United Republic of Tanzania) 279 57
20.43%
27 — 4.20 Low
63 Togo 471 99
21.02%
43 — 4.67 Low
64 Cameroon 218 52
23.85%
22 — 5.08 Low
65 Saint Kitts and Nevis 111 29
26.13%
13 — 5.16 Low
66 Gambia 56 19
33.93%
8 — 6.57 Low
Showing 32 of 32 High Performance flags ↔ Scroll horizontally to view all columns
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Why Does Flag Performance Matter?

Flag performance is relevant to Port State Control risk assessment and may influence inspection priority. Individual vessel risk also depends on other factors.

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Detention Rate

Percentage of inspections resulting in detention during the reporting period.

Detentions ÷ Inspections × 100

This is a calculated indicator, not the official Excess Factor.

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Excess Factor

The statistical performance indicator published by Tokyo MoU. It should not be interpreted as a detention percentage.

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Performance Categories

Tokyo MoU groups the listed flags into High, Medium and Low Performance categories.

High Performance Medium Performance Low Performance
† Important Notice — Sint Maarten (Kingdom of the Netherlands)

According to IMO Circular Letter No. 5019 dated 20 May 2025, Sint Maarten has no international flag registry. The Tokyo MoU document states that vessels inspected under this flag were fraudulently registered and the associated inspection and detention data have lost relevance for flag performance. The entry is retained to reproduce the published list accurately.

Source & Methodology

Tokyo MoU Flag Performance List 2025, valid from 1 July 2026 to 30 June 2027. Inspection and detention data cover 2023–2025. All official inspection counts, detention counts, statistical limits, Excess Factors and performance categories are retained. For easier comparison, ShipRegistration.org displays the flags from best to worst statistical performance, starting with China (Rank 1). This presentation order is the reverse of the official Tokyo MoU table. Blank official cells are displayed as dashes. Detention Rate is independently calculated by ShipRegistration.org and is not the official Excess Factor.

Tokyo MoU Official Website ↗
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