---
kind: "section"
citation: "46 C.F.R. § 129.315"
title: "46"
number: "129.315"
heading: "Power sources for OSVs."
url: "https://uscodex.org/cfr/46/129.315"
---

# §129.315. Power sources for OSVs.

- (a) The requirements of this section apply to OSVs between 100 GRT and 500 GRT or less than 6,000 GT ITC instead of those in [subpart 111.10](/cfr/46/subpart111.10.md) of this chapter.
- (b) If a generator provides electrical power for any system identified as a vital system by [§ 128.130(a)](/cfr/46/128.130.md?p=a) of this subchapter, at least two power-generating sets must be provided. At least one set must be independent of the main propulsion plant. A generator not independent of the main propulsion plant must comply with [§ 111.10-4(d)](/cfr/46/111.10-4.md?p=d) of this chapter. With any one generating set stopped, the remaining set or sets must provide the power necessary for the loads required by this section.

## Notes

### Amendments

[CGD 82-004 and CGD 86-074, 62 FR 49332, Sept. 19, 1997, as amended by USCG-2012-0208, 79 FR 48937, Aug. 18, 2014]

### Authority

Authority: 46 U.S.C. 3306; sec. 617, Pub. L. 111-281, 124 Stat. 2905; Department of Homeland Security Delegation No. 0170.1.

### Source

Source: CGD 82-004 and CGD 86-074, 62 FR 49332, Sept. 19, 1997, unless otherwise noted.

### Amendments

[CGD 82-004 and CGD 86-074, 62 FR 49332, Sept. 19, 1997, as amended by USCG-2012-0208, 79 FR 48937, Aug. 18, 2014]