Mississippi Administrative Code
Title 28 - Ports and Airports
Part 1 - TARIFF NO.7 SCHEDULE OF CHARGES, RULES AND REGULATIONS FOR PORT TERMINAL SERVICES
Chapter 02 - General Rules and Regulations
Section 28-1-02-140 - EMERGENCY SIGNAL

In the event of fire, explosion, or other emergency occurring on board, or on the adjacent dock area, of any vessel in the Port of Gulfport, except vessels underway, such vessels must promptly sound FIVE PROLONGED BLASTS of the whistle or siren as an alarm indicating an emergency on board or at the dock to which vessel is moored. Such signal shall be repeated at intervals to attract attention, and is not a substitute for but may be used in addition to other means of reporting an emergency. The words "prolonged blast" used in this rule shall mean a blast of from FOUR to SIX seconds duration.