33 CFR § 166.100 - Purpose.

---
identifier: "/us/cfr/t33/s166.100"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 166.100 - Purpose."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "166.100"
section_name: "Purpose."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "P"
subchapter_name: "PORTS AND WATERWAYS SAFETY"
part_number: "166"
part_name: "SHIPPING SAFETY FAIRWAYS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "46 U.S.C. 70001, 70003; 49 CFR 1.46."
cfr_part: "166"
---


# 166.100 Purpose.

The purpose of these regulations is to establish and designate shipping safety fairways and fairway anchorages to provide unobstructed approaches for vessels using U.S. ports.

[CGD 81-80a, 48 FR 30110, June 30, 1983]