33 CFR § 174.31 - Terms imposed by States for numbering of vessels.
---
identifier: "/us/cfr/t33/s174.31"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 174.31 - Terms imposed by States for numbering of vessels."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "174.31"
section_name: "Terms imposed by States for numbering of vessels."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "S"
subchapter_name: "BOATING SAFETY"
part_number: "174"
part_name: "STATE NUMBERING AND CASUALTY REPORTING SYSTEMS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "46 U.S.C. 6101 and 12302; DHS Delegation No. 00170.1, Revision No. 01.4."
regulatory_source: "CGD 72-54R, 37 FR 21402, Oct. 7, 1972, unless otherwise noted."
cfr_part: "174"
---
# 174.31 Terms imposed by States for numbering of vessels.
A State numbering system may condition the issuance of a certificate of number on—
(a) Title to, or other proof of ownership of a vessel except a recreational-type public vessel of the United States; or
(b) Proof of liability insurance for a vessel except a recreational-type public vessel of the United States; or
(c) Proof of payment of State or local taxes, except for a recreational-type public vessel of the United States.
[CGD 72-54R, 37 FR 21402, Oct. 7, 1972, as amended by USCG-2003-15708, 70 FR 13105, Mar. 18, 2005; USCG-2022-0323, 88 FR 10029, Feb. 16, 2023]