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POL Government Elected Officials Auditor Griffin-Valade Charter, Code & Policies City Code & Charter Online Code & Charter Title 19 Chapter 19.16  Rules And Regulations
19.16.150 Mooring Hazardous Vessels.

No vessel or watercraft classed as an oil carrier or tanker, or constructed to carry a part cargo of oil, or carrying explosives or other dangerous or flammable cargo shall be made fast in any manner that cannot easily be cast off or cut without unnecessary delay, and there shall be sufficient water under the keel of any such vessel to float it at all times.