Notes on the list of detentions

  • Full details of the ship. The accompanying detention list shows ship’s International Maritime Organization (IMO) number which is unchanging throughout the ship’s life and uniquely identifies it. It also shows the ship’s name and flag state at the time of its inspection.
  • Company. The company shown in the vessel’s safety management certificate (SMC) or if there is no SMC, then the party otherwise believed to be responsible for the safety of the ship at the time of inspection.
  • Classification society. The list shows the classification society responsible for classing the ship only.
  • Recognised organisation. Responsible for conducting the statutory surveys: and issuing statutory certificates on behalf of the flag state.
  • white (WL), grey (GL) and black lists (BL) are issued by the Paris MoU on 01 July each year and shows the performance of flag State.
In response to one of the recommendations of Lord Donaldson’s inquiry into the prevention of pollution from merchant shipping, and in compliance with the EU Directive on Port State Control (2009/16/EC as amended), the Maritime and Coastguard agency (MCA) publishes details of the foreign flagged vessels detained in UK ports each month. The UK is part of a regional agreement on port state control known as the Paris Memorandum of Understanding on Port State Control (Paris MOU) and information on all ships that are inspected is held centrally in an electronic database known as THETIS. This allows the ships with a high risk rating and poor detention records to be targeted for future inspection.

Inspections of foreign flagged ships in UK ports are undertaken by surveyors from the Maritime and Coastguard Agency. When a ship is found to be not in compliance with applicable convention requirements, a deficiency may be raised. If any of their deficiencies are so serious they have to be rectified before departure, then the ship will be detained.

When applicable, the list includes those passenger craft prevented from operating under the provisions of the EU Directive on Mandatory Surveys for the safe operation of regular ro-ro ferry and high speed passenger craft services (1999/35/EU).

UK MCA highlights that

All deficiencies should be rectified before departure.


New Detentions

  1. VEGA MARS: Liberia-flagged vessel was detained on August 4, 2019 at Belfast, found with nineteen deficiencies with one ground for detention. This vessel was released on 10th August 2019.


Detentions from previous months:

  1. The Russian-flagged bulk carrier 'KUZMA MININ' was detained on 18th December 2018 at Falmouth. It had 13 deficiencies with six grounds for detention. This vessel was still detained on 31st August 2019.
  2. The Iceland-flagged 'Poseidon' was detained on 19th July 2018 at Hull. Ten deficiencies with two grounds for detention were found. This vessel was still detained on 31st August 2019.
  3. The Russian-flagged 'Tecoil Polaris' was detained on 6th June 2018 at Immingham, after found with 27 deficiencies with eight grounds for detention. This vessel was still detained on August 31, 2019.
  4. The unregistered 'Cien Porciento' was detained on 4 March 2010 with 30 deficiencies, including seven grounds for detention. This vessel was still detained on August 31 2019.