Ship security plans identify the security measures to be implemented by ships when different maritime security levels are in force.

Regulated Australian ships are required to have, and comply with, ship security plans. This is dealt with in Division   2.

Various other ships and persons are required to comply with ship security plans. This is dealt with in Division   3.

The content and form of ship security plans is dealt with in Division   4.

The approval of ship security plans by the Secretary is dealt with in Division   5. That Division also deals with the variation and revision of plans, and with the cancellation of the approval of plans.

Regulated Australian ships are also required to have an ISSC (International Ship Security Certificate). Division   6 provides for the Secretary to issue ISSCs and interim ISSCs for those ships.

Division   7 allows the Secretary to delegate his or her powers under this Part to registered security organisations.