The Tokyo MOU annual report on Port State Control in the Asia-Pacific Region for 2017 has been released. The report shows that the number of detentions during the year has decreased to 941 in 2017. This is the lowest number and the first time less than 1,000 during the past two decades. However, on the other hand, average number of detainable deficiencies per detention has been increasing in the last three years. As a result the Tokyo MOU expects to further enhance and strengthen measures on inspection of under-performing and substandard ships.