# 46 C.F.R. § 7.5 (2026): Rules for establishing boundary lines

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/CFR_T46_P7_S7_5

## Section

- **Citation:** 46 C.F.R. § 7.5 (2026)
- **Heading:** Rules for establishing boundary lines
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Title 46 CFR: Shipping / Chapter I: COAST GUARD, DEPARTMENT OF HOMELAND SECURITY / Part 7: BOUNDARY LINES / § 7.5: § 7.5   Rules for establishing boundary lines.

## Text

(a) For application of the Vessel Bridge-to-Bridge Radiotelephone Act, 33 U.S.C. 1201
et seq.,
the line is 12 nautical miles seaward of the baseline from which the territorial sea is measured.
(b) Barges of 100 gross tons and over operating on the sheltered waters of British Columbia as defined in the United States-Canada treaty of 1933 (49 Stat. 2685, TS 869) are not required to be inspected as seagoing barges under 46 U.S.C. 3301.
(c) Except as otherwise described in this part, Boundary Lines are lines drawn following the general trend of the seaward, highwater shorelines and lines continuing the general trend of the seaward, highwater shorelines across entrances to small bays, inlets and rivers.
[CGD 81-058, 50 FR 25230, June 18, 1985, as amended by USCG-2001-9044, 68 FR 42602, July 18, 2003]

## Nearby sections

- [46 C.F.R. § 7.1 (2026) § 7.1   General purpose of boundary lines.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P7_S7_1.md)
- [46 C.F.R. § 7.5 (2026) § 7.5   Rules for establishing boundary lines.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P7_S7_5.md)
- [46 C.F.R. § 7.10 (2026) § 7.10   Eastport, ME to Cape Ann, MA.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P7_S7_10.md)
- [46 C.F.R. § 7.15 (2026) § 7.15   Massachusetts Bay, MA.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P7_S7_15.md)
- [46 C.F.R. § 7.20 (2026) § 7.20   Nantucket Sound, Vineyard Sound, Buzzards Bay, Narragansett Bay, MA, Block Island Sound and easterly entrance to Long Island Sound, NY.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P7_S7_20.md)
- [46 C.F.R. § 7.25 (2026) § 7.25   Montauk Point, NY to Atlantic Beach, NY.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P7_S7_25.md)
- [46 C.F.R. § 7.30 (2026) § 7.30   New York Harbor, NY.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P7_S7_30.md)
- [46 C.F.R. § 7.35 (2026) § 7.35   Sandy Hook, NJ to Cape May, NJ.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P7_S7_35.md)
- [46 C.F.R. § 7.40 (2026) § 7.40   Delaware Bay and tributaries.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P7_S7_40.md)
- [46 C.F.R. § 7.45 (2026) § 7.45   Cape Henlopen, DE to Cape Charles, VA.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P7_S7_45.md)
- [46 C.F.R. § 7.50 (2026) § 7.50   Chesapeake Bay and tributaries.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P7_S7_50.md)
- [46 C.F.R. § 7.55 (2026) § 7.55   Cape Henry, VA to Cape Fear, NC.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P7_S7_55.md)
- [46 C.F.R. § 7.60 (2026) § 7.60   Cape Fear, NC to Sullivans Island, SC.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P7_S7_60.md)
- [46 C.F.R. § 7.65 (2026) § 7.65   Charleston Harbor, SC.](https://www.frixlaw.com/law-library/statutes/CFR_T46_P7_S7_65.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/CFR_T46_P7_S7_5. Check the current official text before relying on it. Not legal advice.