W7.117 Siz 1928 War Department Form No. 46 1928 Engineer Dept. (Wan) RULES OF THE DEPARTMENT OF COMMERCE, AND SUPPLEMENTAL S RULES OF THE DEPARTMENT OF COMMERCE Rules for lights and day signals to be carried by vessels, dredges of all types, and vessels working on wrecks or other obstructions to navigation, or moored for submarine operations or made fast to a sunken object which may drift with the tide or be towed (Authority: Section 2, act of Congress approved June 7, 1897, as amended by act of Congress approved May 25, 1914) 1. Rule for signals to be displayed by a towing vessel when towing a submerged or partly submerged object upon a hawser when no signals are displayed upon the object which is towed. The vessel having the submerged object in tow shall display by day, where they can best be seen, two shapes, one above the other, not less than 6 feet apart, the lower shape to be carried not less than 10 feet above the deck houses. The shapes shall be in the form of a double frustum of a cone, base to base, not less than 2 feet in diameter at the center nor less than 8 inches at the ends of the cones, and to be not less than 4 feet lengthwise from end to end, the upper shape to be painted in alternate horizontal stripes of black and white, 8 inches in width, and the lower shape to be painted a solid bright red. By night the towing vessel shall display the regular side lights, but in lieu of the regular white towing lights shall display four lights in a vertical position not less than 3 feet nor more than 6 feet apart, the upper and lower of such lights to be white, and the two middle lights to be red, all of such lights to be of the same character as is now prescribed for the regular towing lights. 111072°-28 3 5. Rule for vessels which are moored or anchored and engaged in laying pipe or operating on submarine construction or excavation. Vessels which are moored or anchored, and engaged in laying pipe or operating on submarine construction or excavation shall display by day, not less than 15 feet above the deck, where they can best be seen from all directions, two balls not less than 2 feet in diameter, in a vertical line not less than 3 feet and not more than 6 feet apart, the upper ball to be painted in alternate black and white vertical stripes 6 inches wide, and the lower ball to be painted a solid bright red. By night they shall display three red lights, carried in a vertical line not less than 3 feet nor more than 6 feet apart and not less than 15 feet above the deck, and in such position as may best be seen from all directions. All the lights required by these special rules for dredges, wrecking boats, lighters, etc., shall be of such size and character as to be visible on a dark night with a clear atmosphere for a distance of at least 2 miles. 6. Rule for vessels which are moored or at anchor. Vessels of more than 300 gross tons propelled by machinery when moored or anchored in a fairway or channel where traffic is liable to congestion or confusion shall display between sunrise and sunset on the forward part of the vessel where it can best be observed from other vessels one black ball or shape not less than 2 feet in diameter. SUPPLEMENTAL REGULATIONS OF THE WAR The law Section 7 of the river and harbor act of August 8, 1917, provides as follows: That it shall be the duty of the Secretary of War to prescribe such regulations for the use, administration, and navigation of the navigable waters of the United States as in his judgment the public necessity may require for the protection of life and property, or of operations of the United States in channel improvement, covering all matters not specifically delegated by law to some other executive department. Such regulations shall be posted, in conspicuous and appropriate places, for the information of the public; and every person and every corporation which shall violate such regulations shall be deemed guilty of a misdemeanor and, on conviction thereof in any district court of the United States within whose territorial jurisdiction such offense may have been committed, shall be punished by a fine not exceeding $500, or by imprisonment (in the case of a natural person) not exceeding six months, in the discretion of the court. In pursuance of the above-quoted law, the following regulations are hereby prescribed to supplement the foregoing pilot rules and govern the display of signals on and the operation of all craft and accessories working on wrecks, engaged in dredging, surveying, or other work of improvement, and the use and navigation of the waters in the vicinity, in all harbors, rivers, and inland waters of the United States, except the Great Lakes and their connecting and tributary waters, the Red River of the North, and the rivers emptying into the Gulf of Mexico and their tributaries. The designation "Floating plant as used herein includes dredges, derrick boats, snag boats, |