Code of Federal Regulations > Title 46 > Chapter I > Part 111 - PART 111—ELECTRIC SYSTEMS—GENERAL REQUIREMENTS

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Feb 10, 2026

Subpart 111.01 [§ 111.01-1 - § 111.01-19] - Subpart 111.01—General

Subpart 111.05 [§ 111.05-1 - § 111.05-37] - Subpart 111.05—Equipment Ground, Ground Detection, and Grounded Systems

Subpart 111.10 [§ 111.10-1 - § 111.10-9] - Subpart 111.10—Power Supply

Subpart 111.12 [§ 111.12-1 - § 111.12-11] - Subpart 111.12—Generator Construction and Circuits

Subpart 111.15 [§ 111.15-1 - § 111.15-30] - Subpart 111.15—Storage Batteries and Battery Chargers: Construction and Installation

Subpart 111.20 [§ 111.20-1 - § 111.20-15] - Subpart 111.20—Transformer Construction, Installation, and Protection

Subpart 111.25 [§ 111.25-1 - § 111.25-15] - Subpart 111.25—Motors

Subpart 111.30 [§ 111.30-1 - § 111.30-29] - Subpart 111.30—Switchboards

Subpart 111.33 [§ 111.33-1 - § 111.33-11] - Subpart 111.33—Power Semiconductor Converter Systems

Subpart 111.35 [§ 111.35-1 - § 111.35-1] - Subpart 111.35—Electric Propulsion

Subpart 111.40 [§ 111.40-1 - § 111.40-15] - Subpart 111.40—Panelboards

Subpart 111.50 [§ 111.50-1 - § 111.50-9] - Subpart 111.50—Overcurrent Protection

Subpart 111.51 [§ 111.51-1 - § 111.51-5] - Subpart 111.51—Calculation of Short-Circuit Currents and Coordination of Overcurrent Protective Devices

Subpart 111.52 - Subpart 111.52[Reserved]

Subpart 111.53 [§ 111.53-1 - § 111.53-1] - Subpart 111.53—Fuses

Subpart 111.54 [§ 111.54-1 - § 111.54-3] - Subpart 111.54—Circuit Breakers

Subpart 111.55 [§ 111.55-1 - § 111.55-3] - Subpart 111.55—Switches

Subpart 111.59 [§ 111.59-1 - § 111.59-3] - Subpart 111.59—Busways

Subpart 111.60 [§ 111.60-1 - § 111.60-23] - Subpart 111.60—Wiring Materials and Methods

Subpart 111.70 [§ 111.70-1 - § 111.70-7] - Subpart 111.70—Motor Circuits, Controllers, and Protection

Subpart 111.75 [§ 111.75-1 - § 111.75-20] - Subpart 111.75—Lighting Circuits and Protection

Subpart 111.77 [§ 111.77-1 - § 111.77-3] - Subpart 111.77—Appliances and Appliance Circuits

Subpart 111.79 [§ 111.79-1 - § 111.79-15] - Subpart 111.79—Receptacles

Subpart 111.81 [§ 111.81-1 - § 111.81-3] - Subpart 111.81—Outlet Boxes and Junction Boxes

Subpart 111.83 [§ 111.83-1 - § 111.83-7] - Subpart 111.83—Shore Connection Boxes

Subpart 111.85 [§ 111.85-1 - § 111.85-1] - Subpart 111.85—Electric Oil Immersion Heaters

Subpart 111.87 [§ 111.87-1 - § 111.87-3] - Subpart 111.87—Electric Air Heating Equipment

Subpart 111.91 [§ 111.91-1 - § 111.91-1] - Subpart 111.91—Elevators and Dumbwaiters

Subpart 111.95 [§ 111.95-1 - § 111.95-7] - Subpart 111.95—Electric Power-Operated Boat Winches

Subpart 111.97 [§ 111.97-1 - § 111.97-9] - Subpart 111.97—Electric Power-Operated Watertight Door Systems

Subpart 111.99 [§ 111.99-1 - § 111.99-5] - Subpart 111.99—Fire Door Holding and Release Systems

Subpart 111.101 [§ 111.101-1 - § 111.101-3] - Subpart 111.101—Submersible Motor-Driven Bilge Pumps

Subpart 111.103 [§ 111.103-1 - § 111.103-9] - Subpart 111.103—Remote Stopping Systems

Subpart 111.105 [§ 111.105-1 - § 111.105-50] - Subpart 111.105—Hazardous Locations

Subpart 111.106 [§ 111.106-1 - § 111.106-17] - Subpart 111.106—Hazardous Locations on OSVs

Subpart 111.107 [§ 111.107-1 - § 111.107-1] - Subpart 111.107—Industrial Systems

Subpart 111.108 [§ 111.108-1 - § 111.108-3] - Subpart 111.108—Hazardous Locations Requirements on U.S. and Foreign MODUs, Floating OCS Facilities, Vessels Conducting OCS Activities, and U.S. Vessels That Carry Flammable and Combustible Cargo