46 CFR § 173.058 - Double bottom requirements.

---
identifier: "/us/cfr/t46/s173.058"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 173.058 - Double bottom requirements."
title_number: 46
title_name: "Shipping"
section_number: "173.058"
section_name: "Double bottom requirements."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "S"
subchapter_name: "SUBDIVISION AND STABILITY"
part_number: "173"
part_name: "SPECIAL RULES PERTAINING TO VESSEL USE"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "43 U.S.C. 1333; 46 U.S.C. 2113, 3306, 5115; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation No. 00170.1, Revision No. 01.3."
regulatory_source: "CGD 79-023, 48 FR 51045, Nov. 4, 1983, unless otherwise noted."
cfr_part: "173"
---


# 173.058 Double bottom requirements.

Each new sailing school vessel which has a mean length greater than 165 feet (50.3 meters) and is certificated for exposed water service must comply with the double bottom requirements in §§ 171.105 through 171.109, inclusive, of this subchapter.

[CGD 83-005, 51 FR 924, Jan. 9, 1986]