[Code of Federal Regulations]

[Title 33, Volume 1]

[Revised as of July 1, 2005]

From the U.S. Government Printing Office via GPO Access

[CITE: 33CFR67.05-1]



[Page 166]

 

                TITLE 33--NAVIGATION AND NAVIGABLE WATERS

 

         CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY

 

PART 67_AIDS TO NAVIGATION ON ARTIFICIAL ISLANDS AND FIXED STRUCTURES

--Table of Contents

 

              Subpart 67.05_General Requirements for Lights

 

Sec. 67.05-1  Arrangement of obstruction lights.





    (a) Structures having a maximum horizontal dimension of 30 feet or 

less on any one side, or in diameter, shall be required to have one 

obstruction light visible for 360[deg].

    (b) Structures having a maximum horizontal dimension of over 30 

feet, but not in excess of 50 feet, on any one side, or in diameter, 

shall be required to have two obstruction lights installed on diagonally 

opposite corners, 180[deg] apart, or as prescribed by the District 

Commander, each light to have a 360[deg] lens.

    (c) Structures having a horizontal dimension of over 50 feet on any 

one side, or in diameter, shall be required to have an obstruction light 

on each corner, or 90[deg] apart in the case of circular structures, or 

as prescribed by the District Commander, each light to have a 360[deg] 

lens.

    (d) Where the overall dimensions of a structure require the 

installation of two or more obstruction lights, the lights shall all be 

mounted on the same horizontal plane within the limitations of height 

specified in Sec. 67.20-5, Sec. 67.25-5, or Sec. 67.30-5, as 

applicable.

    (e) Lesser structures and piles, pile clusters or flare templates, 

etc., will not normally be required to be marked by obstruction lights, 

when they are located within 100 yards of a Class ``A'', ``B'' or ``C'' 

structure marked by established obstruction lights, but they shall be 

marked with red or white retro-reflective material, installed as 

prescribed by the District Commander.

    (f) All obstruction lights shall be installed in a manner which will 

permit at least one of them to be carried in sight of the mariner, 

regardless of the angle of approach, until the mariner is within 50 feet 

of the structure, visibility permitting.



[CGFR 58-17, 23 FR 3377, May 20, 1958, as amended by USCG-2001-10714, 69 

FR 24983, May 5, 2004]