77 STAT. ]
PUBLIC LAW 88-131-SEPT. 24, 1963
SEC. 4. The regulations authorized to be proclaimed under section 1 hereof are the Regulations for Preventing Collisions at Sea, 1960, approved by the International Conference on Safety of Life at Sea, 1960, held at London from May 17, 1960, to June 17, 1960, as follows: "REGULATIONS FOR PREVENTING COLLISIONS AT SEA "PART A.—PRELIMINARY AND DEFINITIONS
"Rule 1 " (a) These Rules shall be followed by all vessels and seaplanes upon the high seas and in all waters connected therewith navigable by seagoing vessels, except as provided in Rule 30. Where, as a result of their special construction, it is not possible for seaplanes to comply fully with the provisions of Rules specifying the carrying of lights and shapes, these provisions shall be followed as closely as circumstances permit. " (b) The Rules concerning lights shall be complied with in all weathers from sunset to sunrise, and during such times no other lights shall be exhibited, except such lights as cannot be mistaken for the prescribed lights or do not impair their visibility or distinctive character, or interfere with the keeping of a proper look-out. The lights prescribed by these Rules may also be exhibited from sunrise to sunset in restricted visibility and in all other circumstances when it is deemed necessary. "(c) I n the following Rules, except where the context otherwise requires— "(i) the word 'vessel' includes every description of water craft, other than a seaplane on the water, used or capable of being used as a means of transportation on water; "(ii) the word 'seaplane' includes a flying boat and any other aircraft designed to manoeuvre on the water; "(iii) the term 'power-driven vessel' means any vessel propelled by machinery; "(iv) every power-driven vessel which is under sail and not under power is to be considered a sailing vessel, and every vessel under power, whether under sail or not, is to be considered a power-driven vessel; "(v) a vessel or seaplane on the water is 'under way' when she is not at anchor, or made fast to the shore, or aground; "(vi) the term 'height above the hull' means height above the uppermost continuous deck; '^(vii) the length and breadth of a vessel shall be her length overall and largest breadth; " (viii) the length and span of a seaplane shall be its maximum length and span as shown m its certificate of airworthiness, or as determined by measurement in the absence of such certificate; "(ix) vessels shall be deemed to be in sight of one another only when one can be observed visually from the other; "(x) the word 'visible', when applied to lights, means visible on a dark night with a clear atmosphere; "(xi) the term 'short blast' means a blast of about one second's duration; "(xii) the term 'prolonged blast' means a blast of from four to six seconds' duration; "(xiii) the word 'whistle' means any appliance capable of producing the prescribed short and prolonged blasts;
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