In or near an area of restricted visibility, whether by day or night, the signals prescribed in this dominance shall be provided as follows:
(a) A power-driven ship making method through the water shall sound, at intervals of not an ext than 2 minutes, one prolonged blast.
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(b) A power-driven ship underway yet stopped and also making no method through the water chandelier sound, at intervals of not an ext than 2 minutes, two lengthy blasts in succession, through an term of about 2 seconds between them.
(c) A vessel no under command; a vessel restricted in her capacity to maneuver, whether underway or at anchor; a sailing vessel; a vessel involved in fishing, even if it is underway or in ~ anchor; and also a vessel involved in towing or pushing one more vessel shall, instead of the signal prescribed in paragraphs (a) or (b) of this Rule, sound, in ~ intervals of not much more than 2 minutes, 3 blasts in succession, namely, one an extensive followed by two short blasts.
(e) A ship towed or if much more than one vessel is towed the critical vessel that the tow, if manned, shall in ~ intervals of not more than 2 minutes sound four blasts in succession, namely, one an extensive followed through three short blasts. Once practicable, this signal shall be made automatically after the signal make by the towing vessel.
(f) once a pushing vessel and also a ship being thrust ahead space rigidly connected in a composite unit lock shall be regarded as a power-driven vessel and shall give the signals prescribed in paragraphs (a) or (b) that this Rule.
(g) A vessel in ~ anchor shall at intervals that not more than 1 minute ring the bell promptly for about 5 seconds. In a ship of 100 meters or an ext in length the bell shall be sounded in the forepart of the vessel and immediately ~ the ringing that the bell the gong shall be sounded rapidly for around 5 secs in the after component of the vessel. A vessel in ~ anchor may in enhancement sound 3 blasts in succession, namely, one short, one an extensive and one brief blast, to give warning of her position and of the opportunity of collision to an approaching vessel.
(h) A ship aground shall give the bell signal and also if compelled the gong signal prescribed in i (g) that this Rule and also shall, in addition, offer three separate and also distinct strokes top top the bell automatically before and after the fast ringing of the bell. A vessel aground may in addition sound an suitable whistle signal.
(i) A courage of 12 meters or an ext but much less than 20 meters in length shall not be obliged to provide the bell signal prescribed in paragraphs (g) and also (h) that this Rule. However, if she go not, she candlestick make part other efficient sound signal in ~ intervals that not an ext than 2 minutes.
(j) A vessel of much less than 12 meters in length shall not be obliged to provide the above-mentioned signals but, if she go not, chandelier make part other effective sound signal at intervals of not much more than 2 minutes.
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(k) A pilot courage when engaged on pilotage duty may, in addition to the signal prescribed in paragraphs (a), (b) or (g) that this Rule, sound an identification signal consists of four quick blasts.
(l) The adhering to vessels shall not be forced to sound signals together prescribed in paragraph (g) of this preeminence when anchored in a unique anchorage area designated through the coast Guard: