250-011-0140 Vessels Not Under Command or Restricted in Their Ability to Maneuver (1) A vessel not under command shall exhibit: (a) Two all-round red lights in a vertical line where they can best be seen; (b) Two balls or similar shapes in a vertical line where they can best be seen; and (c) When making way through the water, in addition to the lights prescribed in this section, sidelights and a sternlight. (2) A vessel restricted in its ability to maneuver, except a vessel engaged in mine-sweeping operations, shall exhibit: (a) Three all-round lights in a vertical line where they can best be seen. The highest and lowest of these lights shall be red and the middle light shall be white; (b) Three shapes in a vertical line where they can best be seen. The highest and lowest of these shapes shall be balls and the middle one a diamond; (c) When making way through the water, masthead lights, sidelights and a sternlight, in addition to the lights prescribed in section, (2)(a) of this rule; and (d) When at anchor, in addition to the lights or shapes prescribed in sections, (2)(a) and (b) of this rule, the light, lights or shapes prescribed in OAR 250-011-0160. (3) A vessel engaged in a towing operation which severely restricts the towing vessel and its tow in their ability to deviate from their course shall, in addition to the lights or shapes prescribed in in sections, (2)(a) and (b) of this rule, exhibit the lights or shape prescribed in OAR 250-011-0110. (4) A vessel engaged in dredging or underwater operations, when restricted in its ability to maneuver, shall exhibit the lights and shapes prescribed in sections, (2)(a), (b), and (c) of this rule and shall in addition, when an obstruction exists, exhibit: (a) Two all-round red lights or two balls in a vertical line to indicate the side on which the obstruction exists; (b) Two all-round green lights or two diamonds in a vertical line to indicate the side on which another vessel may pass; and (c) When at anchor, the lights or shape prescribed by this section, instead of the lights or shapes prescribed in OAR 250-011-0160 for anchored vessels. (d) Dredge pipelines that are floating or supported on trestles shall display the following lights at night and in periods of restricted visibility: (A) One row of yellow lights. The lights must be: Flashing 50 to 70 times per minute, visible all around the horizon, visible for at least 2 miles, not less than 1 and not more than 3.5 meters above the water, approximately equally spaced, and not more than 10 meters apart where the pipeline crosses a navigable channel. Where the pipeline does not cross a navigable channel the lights must be sufficient in number to clearly show the pipeline’s length and course. (B) Two red lights on each end of the pipeline, including the ends in a channel where the pipeline is separated to allow vessels to pass (whether open or closed). The lights must be: Visible for all around the horizon, visible for at least 2 miles, and one meter apart in a vertical line with the lower light at the same height above the water as the flashing yellow light. (5) Whenever the size of a vessel engaged in diving operations makes it impracticable to exhibit all lights and shapes prescribed in section (4) of this rule, the following shall instead be exhibited: (a) Three all-round lights in a vertical line where they can best be seen. The highest and lowest of these lights shall be red and the middle light shall be white; (b) A rigid replica of the international code flag "A" not less than one meter in height. Measures shall be taken to insure its all-round visibility. (6) A vessel engaged in minesweeping operations shall, in addition to the lights prescribed for a power-driven vessel in OAR 250-011-0100, exhibit three all-round green lights or three balls. One of these lights or shapes shall be exhibited near the foremast head and one at each end of the fore yard. These lights or shapes indicate that it is dangerous for another vessel to approach closer than 1,000 meters a stern or 500 meters on either side of the minesweeper. (7) A vessel of less than 12 meters in length, except when engaged in diving operations, is not required to exhibit the lights or shapes prescribed in this rule. (8) The signals prescribed in this rule are not signals of vessels in distress and requiring assistance. Statutory/Other Authority: ORS 830 Statutes/Other Implemented: ORS 830.250 History: Renumbered from 250-012-0030, OSMB 5-2015, f. 6-26-15, cert. ef. 7-1-15 MB 15-1983, f. 11-29-83, ef. 12-1-83