C.F.R. » Title 33 » CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY › SUBCHAPTER D—INTERNATIONAL NAVIGATION RULES › PART 80—COLREGS DEMARCATION LINES

33 C.F.R. § 80.01

General basis and purpose of demarcation lines

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(a) The regulations in this part establish the lines of demarcation delineating those waters upon which mariners shall comply with the International Regulations for Preventing Collisions at Sea, 1972 (72 COLREGS) and those water upon which mariners shall comply with the Inland Navigation Rules.

(b) The waters inside of the lines are Inland Rules waters. The waters outside the lines are COLREGS waters.

(c) Geographic coordinates expressed in terms of latitude or longitude, or both, are not intended for plotting on maps or charts whose referenced horizontal datum is the North American Datum of 1983 (NAD 83), unless such geographic coordinates are expressly labeled NAD 83. Geographic coordinates without the NAD 83 reference may be plotted on maps or charts referenced to NAD 83 only after application of the appropriate corrections that are published on the particular map or chart being used.

[CGD 82-029, 47 FR 19519, May 6, 1982, as amended by CGD 83-003, 48 FR 7442, Feb. 18, 1983; CGD 86-082, 52 FR 33810, Sept. 8, 1987]
Notes of Decisions
Cited in 9 cases (1 in the last 5 years), 1957–2023 · leading case: Evans v. Nantucket Cmty. Sailing, Inc., 582 F. Supp. 2d 121 (D. Mass. 2008).
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Evans v. Nantucket Cmty. Sailing, Inc., 582 F. Supp. 2d 121 (D. Mass. 2008). · cites it 4× “§ 1603 (except as provided in section 1604, COLREGS apply to vessels under American flag “while upon the high seas or in waters connected therewith navigable”); 33 C.F.R. § 80.01 (a). The Coast Guard has the delegated authority to establish the demarcation lines dividing the…”
Bergman v. Ross Island Sand & Gravel Co., 618 P.2d 1 (Or. Ct. App. 1980). “33 CFR § 80.01 states that the Pilot Rules for Inland Waters apply to "vessels navigating the harbors, rivers and inland waters of the United States * * No distinction is there drawn between navigable waters and navigable channels.”
Juno SRL v. S/V Endeavour, 58 F.3d 1 (1st Cir. 1995). “, 33 C.F.R. § 80.01 et seq. They claimed the right to be compensated for damage to the CHARLES JOURDAN, and for loss of business and sponsors resulting from the vessel being incapacitated after the collision.”
State of La., Ex Rel. Guste v. M/V TESTBANK, 564 F. Supp. 729 (E.D. La. 1983). “§§ 151-232 (Inland Rules), and the Pilot Rules for Inland Waters, 33 C.F.R. §§ 80.01 -.45 (1979) (Pilot Rules).”
The First Nat'l Bank of Chicago, of the Will of Wayne J. Hart, Deceased v. Material Serv. Corp., a Corp., 544 F.2d 911 (1st Cir. 1976). “§§ 1051-94 , applicable to United States vessels on the high seas; and the Inland Rules, 33 U.S.C. §§ 151-232 , applicable to vessels on all other inland waters under United States jurisdiction.”
Folkstone Mar., Ltd. v. CSX Corp., 64 F.3d 1037 (7th Cir. 1995). “; 33 C.F.R. §§ 80.01 to 80.1705 (1995). Liability for alhsions may be imposed even in the absence of a statutory violation, if negligence was involved.”
Am. Exp. Lines, Inc. v. Dredge Admiral, 254 F. Supp. 1 (S.D.N.Y. 1966). “Compare 33 C.F.R. § 80.01 , with 33 C.F.R. 201.1(b).”
Sadowski v. The Tug Gremlin, 147 F. Supp. 869 (D. Maryland 1957). “See 33 C.F.R. 80.01, 13 F.R. 7303 , 13 F.R. 519 , 19 F.”
Schneider (M.D. Fla. 2023). “” 33 C.F.R. § 80.01 (b). The relevant demarcation lines are found at 33 C.”
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