46 CFR § 112.39-3 - Operation.

---
identifier: "/us/cfr/t46/s112.39-3"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 112.39-3 - Operation."
title_number: 46
title_name: "Shipping"
section_number: "112.39-3"
section_name: "Operation."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "J"
subchapter_name: "ELECTRICAL ENGINEERING"
part_number: "112"
part_name: "EMERGENCY LIGHTING AND POWER SYSTEMS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "46 U.S.C. 3306, 3703; DHS Delegation No. 00170.1, Revision No. 01.2."
regulatory_source: "CGD 74-125A, 47 FR 15267, Apr. 8, 1982, unless otherwise noted."
cfr_part: "112"
---


# 112.39-3 Operation.

(a) The lanterns must be capable of providing light for at least 3 hours.

(b) The lantern must be relay-controlled so that the loss of normal power causes the lanterns to light.

[CGD 74-125A, 47 FR 15267, Apr. 8, 1982, as amended by CGD 94-108, 61 FR 28287, June 4, 1996]