S.L. 220.1 · Gun, Rifle And Torpedo Ranges (S.L. 220.1)
S.L. 220.1 Art. 7Prohibition of vessels to pass inside danger area.
Vessels are forbidden to pass inside the above danger area while the red flags are hoisted on the said towers, unless absolutely obliged to do so by stress of weather.
The burden of proving this necessity will lie on the master of the vessel.