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Most Challenging PSC Ports

Ports ranked by Port State Control difficulty: detention rate, deficiencies per inspection and the TrustedDocks PSC Score computed from official MOU inspection records. A low score means strict inspections and many findings — prepare accordingly. Updated 2026-08-03. Quarterly PDF report →

63,537
Inspections · 12m
179,566
Deficiencies
1,619
Detentions
2.5481%
Global Detention Rate
Ships Managers Flags Class Ports
# Port Country Inspections DPI DER Detentions Score Tier
1 Nakhodka Russia 395 8.4253 7.3418% 29
5.90
E
2 Gemlik Turkey 50 9.2800 16.0000% 8
9.34
E
3 Mersin Turkey 92 7.8261 7.6087% 7
9.62
E
4 Quanzhou China 84 5.9524 10.7143% 9
12.56
E
5 Qinzhou China 224 6.5714 13.3929% 30
12.60
E
6 Zhangzhou China 74 5.3649 10.8108% 8
12.62
E
7 Kawasaki Japan 61 6.2295 8.1967% 5
12.76
E
8 WEIFANG China 109 5.0734 5.5046% 6
13.05
E
9 Haikou China 43 5.7674 16.2791% 7
13.44
E
10 Trieste Italy 61 4.6393 8.1967% 5
13.49
E
11 Tekirdag Turkey 84 9.5357 13.0952% 11
13.89
E
12 Qingdao China 670 5.8418 8.3582% 56
14.49
E
13 Ashdod Israel 40 5.9500 5.0000% 2
15.21
E
14 Gunsan (Kunsan) Korea 94 4.9149 8.5106% 8
15.60
E
15 Yangpu CHINA 190 5.6211 4.7368% 9
15.75
E
16 Iskenderun Turkey 168 5.1667 6.5476% 11
15.95
E
17 Aliaga Turkey 291 4.7491 7.5601% 22
16.92
E
18 Zhoushan China 458 4.9039 12.0087% 55
17.86
E
19 Dalian China 575 5.3357 6.6087% 38
18.47
E
20 Singapore Singapore 586 4.6007 4.9488% 29
18.73
E
21 Yantai China 286 5.3182 5.2448% 15
18.81
E
22 Fangcheng China 86 5.3488 16.2791% 14
18.81
E
23 Zhangjiagang China 297 5.3906 7.4074% 22
19.71
E
24 Istanbul Turkey 52 4.3846 5.7692% 3
20.17
D
25 Rizhao China 335 5.7642 8.6567% 29
20.37
D
26 Zhanjiang China 166 5.1265 6.6265% 11
20.72
D
27 Yangzhou China 73 5.3425 12.3288% 9
21.50
D
28 Guangzhou China 600 4.5233 7.5000% 45
22.37
D
29 Nanjing China 78 4.4103 15.3846% 12
22.72
D
30 Zhuhai CHINA 87 4.4943 12.6437% 11
22.96
D
31 Incheon KOREA, SOUTH 276 4.4855 4.7101% 13
23.13
D
32 Changzhou China 31 4.2258 6.4516% 2
23.31
D
33 Wei Hai Harbour — 155 5.0903 3.8710% 6
23.43
D
34 Tianjin China 1219 4.6555 4.4299% 54
23.62
D
35 Port Metro Vancouver Canada 292 4.9726 3.4247% 10
24.18
D
36 Lianyungang China 403 4.9578 7.6923% 31
24.28
D
37 Huanghua CHINA 221 4.2670 6.7873% 15
25.35
D
38 Yingkou CHINA 554 4.3917 6.6787% 37
26.74
D
39 Maoming CHINA 31 4.0000 12.9032% 4
26.94
D
40 Ambarli Turkey 154 3.5000 5.1948% 8
27.05
D
41 Ravenna Italy 147 6.0680 2.0408% 3
27.53
D
42 Dandong CHINA 55 3.8545 5.4545% 3
27.55
D
43 Sarroch Italy 35 5.0000 2.8571% 1
27.73
D
44 Brindisi Italy 41 3.1707 9.7561% 4
28.31
D
45 Nantong China 107 3.9720 11.2150% 12
28.36
D
46 Shantou China 106 3.8679 6.6038% 7
28.54
D
47 Xiamen China 262 3.9198 7.6336% 20
28.71
D
48 Vladivostok Russia 297 4.5589 2.6936% 8
28.77
D
49 Fuzhou China 86 3.8605 5.8140% 5
29.58
D
50 Galati Romania 95 5.3474 2.1053% 2
30.22
D
348 results
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How the PSC Score works

The TrustedDocks PSC Score (0–100) is a weighted composite of seven Port State Control KPIs: deficiencies per inspection (25%), detention rate (25%), SMS deficiency rate, predicted deficiency index and three deficiency-domain indices — human factors & crewing, regulatory & operational compliance, and ship structure & equipment (10% each). Every KPI is normalized against the entity's true peer group — same segment, size class and age band — over a rolling 12-month window, so a 15-year-old Handysize bulker is never compared to a new VLCC. 50 means exactly at the peer benchmark; 100 means a spotless record.

Tiers: A 80–100 · B 60–80 · C 40–60 · D 20–40 · E 0–20. Ships need at least 2 inspections in the window for a tier. For ports the reading flips: a LOW score marks a challenging, strict port. Source: official inspection records of the Paris, Tokyo, Mediterranean, Black Sea, Indian Ocean and Abuja MOUs. Detainable findings are severity-weighted 10× in the domain indices.