CFR > Title 33 - Navigation and Navigable Waters > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER NN—DEEPWATER PORTS (parts 148 to 150) > PART 149—DEEPWATER PORTS: DESIGN, CONSTRUCTION, AND EQUIPMENT > SUBPART E—Aids to Navigation (§149.500 to §149.585) > 149.570—How is a platform, single point mooring, or submerged turret loading identified?

149.570—How is a platform, single point mooring, or submerged turret loading identified?

(a) Each platform, single point mooring, or submerged turret loading (STL) that protrudes above the water or is marked by a buoy must display the name of the deepwater port and the name or number identifying the structure, so that the information is visible:
(1) From the water at all angles of approach to the structure; and
(2) From aircraft on approach to the structure if the structure is equipped with a helicopter pad.
(b) The information required in paragraph (a) of this section must be displayed in numbers and letters that are:
(1) At least 12 inches high;
(2) In vertical block style; and
(3) Displayed against a contrasting background.
(c) If an STL protrudes from the water, it must be properly illuminated in accordance with § 149.540.