46 CFR § 171.108 - Manholes in double bottoms.

---
identifier: "/us/cfr/t46/s171.108"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 171.108 - Manholes in double bottoms."
title_number: 46
title_name: "Shipping"
section_number: "171.108"
section_name: "Manholes in double bottoms."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "S"
subchapter_name: "SUBDIVISION AND STABILITY"
part_number: "171"
part_name: "SPECIAL RULES PERTAINING TO VESSELS CARRYING PASSENGERS"
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. 2103, 3306; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; Department of Homeland Security Delegation No. 0170.1."
regulatory_source: "CGD 79-023, 48 FR 51017, Nov. 4, 1983, unless otherwise noted."
cfr_part: "171"
---


# 171.108 Manholes in double bottoms.

(a) The number of manholes in the inner bottom of a double bottom required by § 171.105 must be reduced to the minimum required for adequate access.

(b) Each manhole must have a cover that can be—

(1) Made watertight; and

(2) Protected from damage by cargo or coal.