[Code of Federal Regulations]
[Title 33, Volume 1]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 33CFR62.51]

[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. 62.51  Western Rivers Marking System.

    (a) A variation of the standard U.S. aids to navigation system 
described above is employed on the Mississippi River and tributaries 
above Baton Rouge, LA and on certain other rivers which flow toward the 
Gulf of Mexico.
    (b) The Western Rivers System varies from the standard U.S. system 
as follows:
    (1) Buoys are not numbered.
    (2) Numbers on beacons do not have odd/even lateral significance 
but, rather, indicate mileage from a fixed point (normally the river 
mouth).
    (3) Diamond-shaped non-lateral dayboards, checkered red-and-white or 
green-and-white, similar to those used in the U.S. Aids to Navigation 
System, as appropriate, are used as crossing dayboards where the river 
channel crosses from one bank to the other.
    (4) Lights on green buoys and on beacons with green daymarks show a 
single flash which may be green or white.
    (5) Lights on red buoys and on beacons with red daymarks show a 
double

[[Page 150]]

flash [Group Flashing (2)] which may be red or white.
    (6) Isolated danger marks are not used.

[CGD 86-031, 52 FR 42640, Nov. 6, 1987, as amended by CGD-94-091, 61 FR 
27782, June 3, 1996; USCG-2001-9286, 66 FR 33640, June 25, 2001]