Section 87 in The Andaman and Nicobar Islands Port Rules, 2004
87. Exhibition of lights.
(a)Every harbour cart whether at anchor or underway shall between sunset to sunrise exhibit at a height of atleast 1.83 meters above the deck a white light in a weather proof lantern so constructed as to give an uniform and unbroken light of sufficient power to be visible all around the horizon for distance of atleast one nautical mile.(b)Port harbour craft engaged in towing of dumb barges shall, if in the alongside exhibit in a property constructed lantern on the knowledge of the vessel and at a height of not less than 91 cms, above any construction on deck, a white light, clear uniform and unbroken which shall be visible all around the horizon at a distance of atleast 2 NM, if in tow astern, exhibit a similar white light at the last end at a height of not less than 1.83 meter above the deck.
