(1) If the Secretary approves the offshore security plan, the plan comes into force at the time specified in the notice of approval.
(2) However, if:
(a) the time specified in the notice is earlier than the time at which the notice was given; or
(b) no time is specified in the notice as the time when the plan comes into force;
the plan comes into force when the notice is given.
(3) The plan remains in force for a period of 5 years or such lesser period as the Secretary specifies in the notice of approval (which must be at least 12 months), unless before the end of that period:
(a) the plan is replaced under subsection 100N(4) or 100O(4); or
(b) the approval of the plan is cancelled under this Division.