Published on Australian Maritime Safety Authority (https://www.amsa.gov.au)
In 2021, detentions occurred in 5.6 per cent of all inspections, and the rate of deficiencies per inspection was 2.2.
| Flag State | Number of PSC inspections | Deficiencies | Deficiencies per PSC inspection | Detained | Detention rate | PSC share | Detention share |
|---|---|---|---|---|---|---|---|
| Antigua and Barbuda | 36 | 64 | 1.78 | 4 | 11.1% | 1.28% | 2.52% |
| Bahamas | 89 | 152 | 1.71 | 3 | 3.4% | 3.16% | 1.89% |
| Bangladesh | 1 | 4 | 4.00 | 0 | 0.0% | 0.04% | 0.00% |
| Barbados | 1 | 0 | 0.00 | 0 | 0.0% | 0.04% | 0.00% |
| Belgium | 3 | 1 | 0.33 | 0 | 0.0% | 0.11% | 0.00% |
| Bermuda | 3 | 11 | 3.67 | 0 | 0.0% | 0.11% | 0.00% |
| Cayman Islands | 25 | 48 | 1.92 | 1 | 4.0% | 0.89% | 0.63% |
| China | 41 | 56 | 1.37 | 2 | 4.9% | 1.45% | 1.26% |
| Cook Islands | 9 | 24 | 2.67 | 1 | 11.1% | 0.32% | 0.63% |
| Croatia | 1 | 11 | 11.00 | 0 | 0.0% | 0.04% | 0.00% |
| Cyprus | 57 | 154 | 2.70 | 3 | 5.3% | 2.02% | 1.89% |
| Denmark | 10 | 18 | 1.80 | 1 | 10.0% | 0.35% | 0.63% |
| Germany | 3 | 3 | 1.00 | 0 | 0.0% | 0.11% | 0.00% |
| Gibraltar | 3 | 19 | 6.33 | 1 | 33.3% | 0.11% | 0.63% |
| Greece | 42 | 31 | 0.74 | 3 | 7.1% | 1.49% | 1.89% |
| Hong Kong, China | 358 | 846 | 2.36 | 21 | 5.9% | 12.70% | 13.21% |
| India | 7 | 16 | 2.29 | 0 | 0.0% | 0.25% | 0.00% |
| Indonesia | 1 | 38 | 38.00 | 1 | 100.0% | 0.04% | 0.63% |
| Isle of Man | 42 | 55 | 1.31 | 1 | 2.4% | 1.49% | 0.63% |
| Italy | 9 | 34 | 3.78 | 0 | 0.0% | 0.32% | 0.00% |
| Jamaica | 1 | 0 | 0.00 | 0 | 0.0% | 0.04% | 0.00% |
| Japan | 49 | 47 | 0.96 | 1 | 2.0% | 1.74% | 0.63% |
| Korea (the Republic of) | 23 | 84 | 3.65 | 0 | 0.0% | 0.82% | 0.00% |
| Kuwait | 3 | 1 | 0.33 | 0 | 0.0% | 0.11% | 0.00% |
| Liberia | 378 | 803 | 2.12 | 25 | 6.6% | 13.4% | 15.72% |
| Libya | 1 | 1 | 1.00 | 0 | 0.0% | 0.04% | 0.00% |
| Luxembourg | 8 | 10 | 1.25 | 0 | 0.0% | 0.28% | 0.00% |
| Malaysia | 6 | 9 | 1.50 | 0 | 0.0% | 0.21% | 0.00% |
| Malta | 143 | 268 | 1.87 | 6 | 4.2% | 5.07% | 3.77% |
| Marshall Islands | 429 | 825 | 1.92 | 28 | 6.5% | 12.21% | 17.61% |
| Montenegro | 1 | 5 | 5.00 | 0 | 0.0% | 0.04% | 0.00% |
| Netherlands | 14 | 38 | 2.71 | 1 | 7.1% | 0.50% | 0.63% |
| New Zealand | 2 | 3 | 1.50 | 0 | 0.0% | 0.07% | 0.00% |
| Norway | 56 | 63 | 1.13 | 0 | 0.0% | 1.99% | 0.00% |
| Panama | 624 | 1,822 | 2.92 | 45 | 7.2% | 22.13% | 28.30% |
| Philippines | 7 | 21 | 3.00 | 0 | 0.0% | 0.25% | 0.00% |
| Portugal | 34 | 92 | 2.71 | 3 | 8.8% | 1.21% | 1.89% |
| Qatar | 3 | 2 | 0.67 | 0 | 0.0% | 0.11% | 0.00% |
| Saint Vincent and the Grenadines | 1 | 0 | 0.00 | 0 | 0.00% | 0.04% | 0.00% |
| Samoa | 1 | 0 | 0.00 | 0 | 0.0% | 0.04% | 0.00% |
| Singapore | 238 | 419 | 1.76 | 5 | 2.1% | 8.44% | 3.14% |
| South Africa | 1 | 0 | 0.00 | 0 | 0.0% | 0.04% | 0.00% |
| Sri Lanka | 1 | 0 | 0.00 | 0 | 0.0% | 0.04% | 0.00% |
| Sweden | 6 | 2 | 0.33 | 0 | 0.0% | 0.21% | 0.00% |
| Switzerland | 1 | 6 | 6.00 | 0 | 0.0% | 0.04% | 0.00% |
| Taiwan (Province of China) | 10 | 9 | 0.90 | 1 | 10.0% | 0.35% | 0.63% |
| Thailand | 10 | 48 | 4.80 | 1 | 10.0% | 0.35% | 0.63% |
| Turkey | 2 | 10 | 5.00 | 0 | 0.0% | 0.07% | 0.00% |
| Tuvalu | 1 | 3 | 3.00 | 0 | 0.0% | 0.04% | 0.00% |
| United Kingdom | 16 | 42 | 2.63 | 1 | 6.3% | 0.57% | 0.63% |
| United States of America | 2 | 7 | 3.50 | 0 | 0.0% | 0.07% | 0.00% |
| Vanuatu | 5 | 5 | 1.00 | 0 | 0.0% | 0.18% | 0.00% |
| Viet Nam | 2 | 12 | 6.00 | 0 | 0.0% | 0.07% | 0.00% |
| Total | 2,820 | 6,242 | 2.21 | 159 | 5.6% |