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46 CFR § 31.20-1 - Waters—tb/all.

---
identifier: "/us/cfr/t46/s31.20-1"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 31.20-1 - Waters—TB/ALL."
title_number: 46
title_name: "Shipping"
section_number: "31.20-1"
section_name: "Waters—TB/ALL."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "D"
subchapter_name: "TANK VESSELS"
part_number: "31"
part_name: "INSPECTION AND CERTIFICATION"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "33 U.S.C. 1321(j); 46 U.S.C. 2103, 3205, 3306, 3307, 3703; 46 U.S.C. Chapter 701; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; DHS Delegation No. 00170.1, Revision No. 01.4. Section 31.10-21 also issued under the authority of Sect. 4109, Pub. L. 101-380, 104 Stat. 515."
regulatory_source: "CGFR 65-50, 30 FR 16662, Dec. 30, 1965, unless otherwise noted."
cfr_part: "31"
---

# 31.20-1 Waters—TB/ALL.

The certificate of inspection shall show the waters over which the tank vessel is permitted to operate, such as: all waters; oceans; coastwise; Great Lakes; bays, sounds, and lakes other than the Great Lakes; rivers; or inland waters tributary to the Gulf of America.