---
kind: "section"
citation: "33 C.F.R. § 157.228"
title: "33"
number: "157.228"
heading: "Isolating Valves: Closed during a voyage."
url: "https://uscodex.org/cfr/33/157.228"
---

# §157.228. Isolating Valves: Closed during a voyage.

- (a) The master of each U.S. tank vessel under [§ 157.10a(b)](/cfr/33/157.10a.md?p=b), [§ 157.10a(c)(2)](/cfr/33/157.10a.md?p=c-2), [§ 157.10b(a)(2)](/cfr/33/157.10b.md?p=a-2), or [§ 157.10c(c)(2)](/cfr/33/157.10c.md?p=c-2) shall ensure that the valves under [§ 157.222(d)](/cfr/33/157.222.md?p=d) remain closed during each voyage.
- (b) The master of each foreign tank vessel meeting [§ 157.10a(b)](/cfr/33/157.10a.md?p=b), [§ 157.10a(c)(2)](/cfr/33/157.10a.md?p=c-2), [§ 157.10b(a)(2)](/cfr/33/157.10b.md?p=a-2), or [§ 157.10c(c)(2)](/cfr/33/157.10c.md?p=c-2) shall ensure that the valves under [§ 157.222(d)](/cfr/33/157.222.md?p=d) remain closed when the vessel is on a voyage in the navigable waters of the United States.

## Notes

### Amendments

[CGD 82-28, 50 FR 11629, Mar. 22, 1985]

### Source

Source: CGD 77-058b, 45 FR 43714, June 30, 1980, unless otherwise noted.

### 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 82-28, 50 FR 11629, Mar. 22, 1985]