---
kind: "section"
citation: "46 U.S.C. § 103"
title: "46"
title_heading: "Shipping"
number: "103"
heading: "Boundary Line"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/46/103"
units:
  - "Subtitle I — General"
  - "Chapter 1 — Definitions"
---

# §103. Boundary Line


In this title, the term “Boundary Line” means a line established under section 2(b) of the Act of February 19, 1895 ([33 U.S.C. 151(b)](/usc/33/151.md?p=b)).


## Source credit

(Pub. L. 109–304, § 4, Oct. 6, 2006, 120 Stat. 1486; Pub. L. 114–120, title III, § 306(a)(1), Feb. 8, 2016, 130 Stat. 54.)

## Notes

| Historical and Revision Notes |  |  |
| --- | --- | --- |
| Revised<br>Section | Source (U.S. Code) | Source (Statutes at Large) |
| 103 | 46:2101(3). |  |

### Editorial Notes

### Amendments

2016—Pub. L. 114–120 substituted “(33 U.S.C. 151(b)).” for “(33 U.S.C. 151).”