Malaysia legislation
Section 18
of Ports And Harbours Ports Harbours And Dues Regulations 2008
Section 18
(1)
The master of every vessel other than a small ship trading within coastal trade limits about to proceed to sea shall notify the port officer and deliver his departure conditions.
(2)
The master of every such vessel shall, so far as possible, exhibit the
International Code Flag “P” 24 hours prior to departure, and may, during the hours of daylight, sound one long blast 30 minutes before sailing.
Withdrawal of port clearance