The Department of Ports and Marine is mandated under the Port Act Capt 26 to give directions regulating the time and manner for vessel to enter or go out of Port.
Section 7. Powers of Harbormaster
It shall be lawful for the harbormaster to give directions regulating the time and manner in which any vessels shall enter into, go out of or lie in the port, and the position, mooring, unmooring, placing or removing of any vessels within the same.