The Inland Navigational Rules Act of 1980 is in effect for vessels transiting this 
area. The seaward boundaries of this area are the COLREGS demarcation lines. 
In the area seaward of the COLREGS demarcation lines, vessels are governed by 
COLREGS: International Regulations for Preventing Collisions at Sea, 1972. 
The COLREGS demarcation lines are defined in 33 CFR 80.727b.

Navigation regulations are published in Chapter 2, U.S.
Coast Pilot 4. Additions or revisions to Chapter 2 are pub-
lished in the Notice to Mariners. Information concerning the
regulations may be obtained at the Office of the Commander,
7th Coast Guard District in Miami, Florida, or at the Office
of the District Engineer, Corps of Engineers in Jacksonville,
Florida.
Refer to charted regulation section numbers.