33 C.F.R. § 149.550 What are the requirements for lights on a floating hose string?
Title 33 - Navigation and Navigable Waters
Hose strings 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: (1) Flashing 50 to 70 times per minute; (2) Visible all around the horizon; (3) Visible for at least 2 miles on a clear, dark night; (4) Not less than 1 and not more than 3.5 meters above the water; (5) Approximately equally spaced; and (6) Not more than 10 meters apart where the hose string crosses a navigable channel, and, also, where the hose string does not cross a navigable channel, the lights must be sufficient in number to clearly show the hose string's length and course. (b) Two red lights at each end of the hose string, including the ends in a channel where the hose string is separated to allow vessels to pass, whether open or closed. The lights must be: (1) Visible all around the horizon; (2) Visible for at least 2 miles on a clear, dark night; and (3) One meter apart in a vertical line with the lower light at the same height above the water as the flashing yellow light.
Title 33: Navigation and Navigable Waters
PART 149—DEEPWATER PORTS: DESIGN, CONSTRUCTION, AND EQUIPMENT
Subpart E—Aids to Navigation
Lights on Floating Hose Strings
§ 149.550 What are the requirements for lights on a floating hose string?

