---
kind: "section"
citation: "46 C.F.R. § 178.230"
title: "46"
number: "178.230"
heading: "Stability letter or Certificate of Inspection stability details."
url: "https://uscodex.org/cfr/46/178.230"
---

# §178.230. Stability letter or Certificate of Inspection stability details.

- (a) When the cognizant OCMI or the Commanding Officer, Marine Safety Center determines, in accordance with [§ 178.210](/cfr/46/178.210.md), that a vessel must have stability details indicated on its Certificate of Inspection or a stability letter, the owner or operator must submit the information listed in [paragraph (b)](#b) of this section:
  - (1) If [§ 178.210(c)](/cfr/46/178.210.md?p=c) is applicable, to the OCMI for approval; or
  - (2) If [§ 178.210(b)](/cfr/46/178.210.md?p=b) is applicable, to the Commanding Officer, Marine Safety Center for approval.
- (b) If [§ 178.210(b)](/cfr/46/178.210.md?p=b) of this part applies, the applicable information described in [subpart C of part 170 of this title](/cfr/46/part170-subpartC.md), and the calculations used to determine that information, must be submitted in addition to the applicable information listed in [paragraph (b)](#b) of this section.
  - (1) Allowable weight and number of passengers and crew on each deck;
  - (2) Deepest waterline drafts or freeboard;
  - (3) Location of watertight bulkheads and openings in watertight bulkheads;
  - (4) Explanation of the vessel's subdivision and specific identification of the vessel's subdivision bulkheads;
  - (5) Location of openings through watertight bulkheads, such as watertight doors, which must be closed to limit flooding in an emergency;
  - (6) Location, type and amount of fixed ballast;
  - (7) Location and details of foam flotation material; and
  - (8) **Maximum weight of portable equipment permitted on the vessel including diving equipment.**
- (c) If [§ 178.210(c)](/cfr/46/178.210.md?p=c) of this part applies, the allowable weight and number of passengers and crew on each deck, and the necessary calculations used to determine that information, must be submitted in accordance with [paragraph (a)](#a) of this section.

## Notes

### Amendments

[CGD 85-080, 61 FR 966, Jan. 10, 1996, as amended by USCG-2007-0030, 75 FR 78087, Dec. 14, 2010]

### Authority

Authority: 43 U.S.C. 1333; 46 U.S.C. 2103, 3306, 3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation No. 00170.1, Revision No. 01.3.

### Source

Source: CGD 85-080, 61 FR 966, Jan. 10, 1996, unless otherwise noted.

### Amendments

[CGD 85-080, 61 FR 966, Jan. 10, 1996, as amended by USCG-2007-0030, 75 FR 78087, Dec. 14, 2010]