---
kind: "section"
citation: "46 C.F.R. § 111.60-9"
title: "46"
number: "111.60-9"
heading: "Segregation of vital circuits."
url: "https://uscodex.org/cfr/46/111.60-9"
---

# §111.60-9. Segregation of vital circuits.

- (a) **General.** A branch circuit that supplies equipment vital to the propulsion, control, or safety of the vessel must not supply any other equipment.
- (b) **Passenger vessels.**
  - (1) Each passenger vessel with firescreen bulkheads that form main fire zones must have distribution systems arranged so that fire in a main fire zone does not interfere with essential services in another main fire zone.
  - (2) Main and emergency feeders passing through a main fire zone must be separated vertically and horizontally as much as practicable.

## Notes

### Authority

Authority: 46 U.S.C. 3306, 3703; DHS Delegation No. 00170.1, Revision No. 01.2. Section 111.05-20 and Subpart 111.106 also issued under sec. 617, Pub. L. 111-281, 124 Stat. 2905.

### Source

Source: CGD 74-125A, 47 FR 15236, Apr. 8, 1982, unless otherwise noted.