---
kind: "section"
citation: "46 C.F.R. § 172.170"
title: "46"
number: "172.170"
heading: "Damage stability calculations."
url: "https://uscodex.org/cfr/46/172.170"
---

# §172.170. Damage stability calculations.

- (a) Each tankship must be shown by design calculations to meet the survival conditions in [§ 172.195](/cfr/46/172.195.md) in each condition of loading and operation assuming the damage specified in [§ 172.175](/cfr/46/172.175.md) for the hull type specified in Table 4 of [part 154](/cfr/46/part154.md) of this chapter.
- (b) If a cargo listed in Table 4 of [part 154](/cfr/46/part154.md) of this chapter is to be carried, the vessel must be at least the ship type specified in Table 4 of [part 154](/cfr/46/part154.md) of this chapter for the cargo.

## Notes

### Authority

Authority: 46 U.S.C. 3306, 3703, 5115; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation 00170.1, Revision No. 01.2.

### Source

Source: CGD 79-023, 48 FR 51040, Nov. 4, 1983, unless otherwise noted.