---
kind: "section"
citation: "33 C.F.R. § 157.35"
title: "33"
number: "157.35"
heading: "Ballast added to cargo tanks."
url: "https://uscodex.org/cfr/33/157.35"
---

# §157.35. Ballast added to cargo tanks.


The master of a tank vessel with segregated ballast tanks or dedicated clean ballast tanks under [§ 157.09](/cfr/33/157.09.md), [§ 157.10](/cfr/33/157.10.md), [§ 157.10a(a)(1)](/cfr/33/157.10a.md?p=a-1), [§ 157.10a(b)](/cfr/33/157.10a.md?p=b), [§ 157.10a(c)](/cfr/33/157.10a.md?p=c), [§ 157.10b(a)](/cfr/33/157.10b.md?p=a), [§ 157.10c(b)(1)](/cfr/33/157.10c.md?p=b-1), or [§ 157.10c(c)](/cfr/33/157.10c.md?p=c) shall ensure that ballast water is carried in a cargo tank only if—

- (a) The vessel encounters abnormally severe weather conditions;
- (b) More ballast water than can be carried in segregated ballast tanks or dedicated clean ballast tanks is necessary for the safety of the vessel;
- (c) The ballast water is processed and discharged in compliance with [§ 157.37](/cfr/33/157.37.md); and
- (d) On a new vessel under [§ 157.10](/cfr/33/157.10.md) that carries crude oil, the ballast water is only carried in a cargo tank that is crude oil washed in accordance with [Subpart D](/cfr/33/subpartD.md) of this part during or after the most recent discharge of crude oil from that tank.

## Notes

### Amendments

[CGD 77-058b, 45 FR 43708, June 30, 1980, as amended by CGD 82-28, 50 FR 11626, Mar. 22, 1985]

### Authority

Authority: 33 U.S.C. 1903; 46 U.S.C. 3703, 3703a (note); Department of Homeland Security Delegation No. 0170.1. Subparts G, H, and I are also issued under section 4115(b), Pub. L. 101-380, 104 Stat. 520; Pub. L. 104-55, 109 Stat. 546.

### Source

Source: CGD 74-32, 40 FR 48283, Oct. 14, 1975, unless otherwise noted.

### Amendments

[CGD 77-058b, 45 FR 43708, June 30, 1980, as amended by CGD 82-28, 50 FR 11626, Mar. 22, 1985]