- Personal Use: Only the deed-holder has officer privileges as long as they themselves are ranked officer or above.
- Crew Use: All officers in the crew have officer privileges, but only the deed holder may enter sinking blockades, flotillas, Imperial outposts, or sea monster encounters with that ship. Any officer may, however, enter non-sinking blockades, flotillas, or Imperial outposts. Setting a ship on Crew Use does not prevent any crew officer from charting and sailing that ship during a time of war.
- Battle Ready: All officers in the crew may sail into sinking blockades, flotillas and sea monster encounters.
The vessel can only be locked from the navigation table. Note that the vessel lock does not affect access to gunnery or navigation puzzles. Officers and above in a crew will see a padlock symbol corresponding to the level of locking on the dock screen on from the Vessel Report and pirates aboard a vessel will see it on the vessel panel.
|View||Personal Use||Crew Use||Battle Ready|
If a fleet officer or above in a crew steps on board a locked ship that belongs to a deleted pirate, the ship gets automatically unlocked, and the market bidding table allows him to retrieve the deed.
On Dark Seas, a warning is shown if a player moves off a ship they own that is left unlocked. This is because of the increased likelihood of the ship being sunk in Dark Seas.
- Before release 2004-10-21, ships could not be locked.
- Before release 2007-05-24, there was only one level of locking, which was equivalent to Personal Use. Unlocked ships could be sunk without the owner's knowledge.
- As of release 2007-09-04 the lock status can be seen from the Vessel Report via the "Where are my vessels?" button
On the Crimson Ocean it was not possible to unlock or lock ships. Only the holder of the deed could set a course, set sail, or trade commodities. This was in order to prevent theft of commodities.