[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: 33CFR62.43]



[Page 149-150]

 

                TITLE 33--NAVIGATION AND NAVIGABLE WATERS

 

         CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY

 

PART 62_UNITED STATES AIDS TO NAVIGATION SYSTEM--Table of Contents

 

              Subpart B_The U.S. Aids to Navigation System

 

Sec. 62.43  Numbers and letters.



    (a) All solid red and solid green aids are numbered, with red aids 

bearing even numbers and green aids bearing odd numbers. The numbers for 

each increase in the Conventional Direction of Buoyage. Numbers are kept 

in approximately sequence on both sides of the channel by omitting 

numbers where necessary.

    (b) Only sidemarks are numbered. However, aids other than those 

mentioned above may be lettered to assist in their identification, or to 

indicate their purpose. Sidemarks may carry letters in addition to 

numbers to identify the first aid to navigation in a waterway, or when 

new aids to navigation are added to channels with previously completed 

numerical sequences. Letters on sidemarks will follow alphabetical order 

from seaward and proceeding toward the Conventional Direction of Buoyage 

and will be added to numbers as suffixes.

    (c) Aids to navigation may be fitted with light-reflecting material 

to increase their visibility in darkness. The colors of this material 

may convey the same significance as the aid except that letters and 

numbers may be white.

    (d) Exceptions to the provisions of this section will be found on 

the Western Rivers System. See Sec. 62.51.

    (e) The guidelines for the display of numbers and letters on aids to 

navigation are identical for both Region A and Region B; red aids to 

navigation



[[Page 150]]



display even numbers, and green aids display odd numbers.



[CGD 86-031, 52 FR 42640, Nov. 6, 1987, as amended by CGD 88-018, 54 FR 

48608, Nov. 24, 1989]