77 STAT. ]
PUBLIC LAW 88-131-SEPT. 24, 1963 "Kule 6
" (a) W h e n it is not possible on account of bad weather or other sufficient cause to fix the green and red sidelights, these lights shall be kept at hand lighted and ready for immediate use, and shall, on the approach of or to other vessels, be exhibited on their respective sides in sufficient time to prevent collision, in such manner as to make them most visible, and so that the green light shall not be seen on the port side nor the red light on the starboard side, nor, if practicable, more than 221^ degrees (2 points) abaft the beam on their respective sides. "(b) To make the use of these portable lights more certain and easy, the lanterns containing them shall each be painted outside with the colour of the lights they respectively contain, and shall be provided with proper screens. "Eule T "Power-driven vessels of less than 65 feet in length, vessels under oars or sails of less than 40 feet in length, and rowing boats, when under way shall not be required to carry the lights prescribed in Rules 2, 3 and 5, but if they do not carry them they shall be provided with the following lights— " (a) Power-driven vessels of less than 65 feet in length, except as provided in sections (b) and (c), shall carry— " (i) I n the forepart of the vessel, where it can best be seen, and at a height above the gunwale of not less than 9 feet, a white light constructed and fixed as prescribed in Rule 2(a)(i) and of such a character as to be visible at a distance of at least 3 miles, "(ii) Green and red sidelights constructed and fixed as prescribed in Rule 2(a) (iv) and (v), and of such a character as to be visible at a distance of at least 1 mile, or a combined lantern showing a green light and a red light from right ahead to 221/^ degrees (2 points) abaft the beam on their respective sides. Such lantern shall be carried not less than 3 feet below the white light. "(b) Power-driven vessels of less than 65 feet in length when towing or pushing another vessel shall carry— " (i) I n addition to the sidelights or the combined lantern prescribed in section (a) (ii) two white lights in a vertical line, one over the other not less than 4 feet apart. Each of these lights shall be of the same construction and character as the white light prescribed in section (a)(i) and one of them shall be carried m the same position. In a vessel with a single mast such lights may be carried on the mast. "(ii) Either a stem light as prescribed in Rule 10 or in lieu of that light a small white light abaft the funnel or aftermast for the tow to steer by, but such light shall not be visible forward of the beam. "(c) Power-driven vessels of less than 40 feet in length may carry the white light at a less height than 9 feet above the gunwale but it shall be carried not less than 3 feet above the sidelights or the combined lantern prescribed in section (a) (ii). " (d) Vessels of less than 40 feet in length, under oars or sails, except as provided in section (i), shall, if they do not carry the sidelights, carry, where it can best be seen, a lantern showing a green light on one side and a red light on the other, of such a character as to be visible at a distance of at least 1 mile, and so fixed that the green light shall not be seen on the port side, nor the red light on the starboard side. Where it is not possible to fix this light, it shall be kept ready for immediate use and shall be exhibited in sufficient time to prevent
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