---
kind: "section"
citation: "46 C.F.R. § 170.200"
title: "46"
number: "170.200"
heading: "Estimated lightweight vertical center of gravity."
url: "https://uscodex.org/cfr/46/170.200"
---

# §170.200. Estimated lightweight vertical center of gravity.

- (a) Each tank vessel that does not carry a material listed in either Table 1 of [part 153](/cfr/46/part153.md) or Table 4 of [part 154](/cfr/46/part154.md) of this chapter may comply with this section in lieu of [§ 170.175](/cfr/46/170.175.md) if it—
  - (1) Is 150 gross tons or greater;
  - (2) Is of ordinary proportions and form;
  - (3) Has a flush weather deck, one or more longitudinal bulkheads, and no independent tanks; and
  - (4) **Is designed not to carry cargo above the freeboard deck.**
- (b) When doing the calculations required by §§ [170.170](/cfr/46/170.170.md) and [172.065](/cfr/46/172.065.md), the vertical center of gravity of a tank vessel in the lightweight condition must be assumed to be equal to the following percentage of the molded depth of the vessel measured from the keel amidship:
  - (1) **For a tank ship—** 70%.
  - (2) **For a tank barge—** 60%.
- (c) As used in this section, molded depth has the same meaning that is provided for the term in [§ 42.13-15(e)](/cfr/46/42.13-15.md?p=e) of this chapter.

## Notes

### Amendments

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 85-080, 61 FR 944, Jan. 10, 1996]

### 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; Department of Homeland Security Delegation No. 0170.1.

### Source

Source: CGD 79-023, 48 FR 51010, Nov. 4, 1983, unless otherwise noted.

### Amendments

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 85-080, 61 FR 944, Jan. 10, 1996]