On behalf of the owners of the ship and the owners of all "maritime property" on board including any cargo, cargo containers, bunkers, stores and other equipment, and the recipients of any freight at risk. On a ship with contractors' equipment on board, such as a diving support vessel, the owners of that equipment would also be included. All the owners of "maritime property" become liable for a contribution to the salvor's reward if he is successful.

Banning applies to all ship types and is based on the number of detentions of a ship in a specified period. (1) If a ship flies a flag on the Paris MoU Black List it will be banned after more than 2 detentions in the previous 36 months. (2) If a ship flies a flag on the Grey List it will be banned after more than 2 detentions in the previous 24 months.

Where a port State authority requires that specific ballast water procedures and/or treatment option(s) be undertaken, and due to weather, sea conditions or operational impracticability such action cannot be taken, the master should report this fact to the port State authority as soon as possible and, where appropriate, prior to entering seas under its jurisdiction. (BWM Guidelines, 8.1.1)