46 CFR § 69.163 - Under-deck tonnage.

---
identifier: "/us/cfr/t46/s69.163"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 69.163 - Under-deck tonnage."
title_number: 46
title_name: "Shipping"
section_number: "69.163"
section_name: "Under-deck tonnage."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "G"
subchapter_name: "DOCUMENTATION AND MEASUREMENT OF VESSELS"
part_number: "69"
part_name: "MEASUREMENT OF VESSELS"
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. 2301, 14103, 14104; Department of Homeland Security Delegation No. 0170.1."
regulatory_source: "CGD 87-015b, 54 FR 37657, Sept. 12, 1989, unless otherwise noted."
cfr_part: "69"
---


# 69.163 Under-deck tonnage.

The under-deck tonnage provisions in § 69.109 apply; except that, under this subpart, spaces between the line of the tonnage deck and the tonnage deck itself due to a stepped tonnage deck are included in under-deck tonnage.

[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by USCG-2011-0522, 81 FR 18731, Mar. 31, 2016]