Regulations last checked for updates: Feb 13, 2026

Title 46 - Shipping last revised: Jan 15, 2026
All TitlesTitle 46Chapter IPart 112Subpart 112.25 - Subpart 112.25—Emergency Systems Having an Automatic Starting Diesel Engine or Gas Turbine Driven Emergency Power Source as the Sole Emergency Power Source
View all text of Subpart 112.25 [§ 112.25-1 - § 112.25-10]
§ 112.25-3 - Normal source for emergency loads.

(a) The normal source for emergency loads must be the ship's service generating plant.

(b) The power from the ship's service generating plant for the emergency loads must be supplied to the emergency switchboard by an automatic transfer switch located at the emergency switchboard.

authority: 46 U.S.C. 3306,3703; DHS Delegation No. 00170.1, Revision No. 01.2
source: CGD 74-125A, 47 FR 15267, Apr. 8, 1982, unless otherwise noted.
cite as: 46 CFR 112.25-3
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