---
kind: "unit"
title: "46"
title_heading: "Shipping"
key: "chI/subchJ/part111"
level: "part"
label: "Part 111"
heading: "Electric Systems—general Requirements"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/46/chI-subchJ-part111"
sections_count: 195
---

# Part 111 — Electric Systems—general Requirements

Title 46 C.F.R. — Shipping › Chapter I — Coast Guard, Department of Homeland Security › Subchapter J — Electrical Engineering

## Contents

- [Subpart 111.01 — General](/cfr/46/chI-subchJ-part111-subpart111.01.md)
- [Subpart 111.05 — Equipment Ground, Ground Detection, and Grounded Systems](/cfr/46/chI-subchJ-part111-subpart111.05.md)
- [Subpart 111.10 — Power Supply](/cfr/46/chI-subchJ-part111-subpart111.10.md)
- [Subpart 111.12 — Generator Construction and Circuits](/cfr/46/chI-subchJ-part111-subpart111.12.md)
- [Subpart 111.15 — Storage Batteries and Battery Chargers: Construction and Installation](/cfr/46/chI-subchJ-part111-subpart111.15.md)
- [Subpart 111.20 — Transformer Construction, Installation, and Protection](/cfr/46/chI-subchJ-part111-subpart111.20.md)
- [Subpart 111.25 — Motors](/cfr/46/chI-subchJ-part111-subpart111.25.md)
- [Subpart 111.30 — Switchboards](/cfr/46/chI-subchJ-part111-subpart111.30.md)
- [Subpart 111.33 — Power Semiconductor Converter Systems](/cfr/46/chI-subchJ-part111-subpart111.33.md)
- [Subpart 111.35 — Electric Propulsion](/cfr/46/chI-subchJ-part111-subpart111.35.md)
- [Subpart 111.40 — Panelboards](/cfr/46/chI-subchJ-part111-subpart111.40.md)
- [Subpart 111.50 — Overcurrent Protection](/cfr/46/chI-subchJ-part111-subpart111.50.md)
- [Subpart 111.51 — Calculation of Short-Circuit Currents and Coordination of Overcurrent Protective Devices](/cfr/46/chI-subchJ-part111-subpart111.51.md)
- [Subpart 111.52 — Subpart 111.52[Reserved]](/cfr/46/chI-subchJ-part111-subpart111.52.md)
- [Subpart 111.53 — Fuses](/cfr/46/chI-subchJ-part111-subpart111.53.md)
- [Subpart 111.54 — Circuit Breakers](/cfr/46/chI-subchJ-part111-subpart111.54.md)
- [Subpart 111.55 — Switches](/cfr/46/chI-subchJ-part111-subpart111.55.md)
- [Subpart 111.59 — Busways](/cfr/46/chI-subchJ-part111-subpart111.59.md)
- [Subpart 111.60 — Wiring Materials and Methods](/cfr/46/chI-subchJ-part111-subpart111.60.md)
- [Subpart 111.70 — Motor Circuits, Controllers, and Protection](/cfr/46/chI-subchJ-part111-subpart111.70.md)
- [Subpart 111.75 — Lighting Circuits and Protection](/cfr/46/chI-subchJ-part111-subpart111.75.md)
- [Subpart 111.77 — Appliances and Appliance Circuits](/cfr/46/chI-subchJ-part111-subpart111.77.md)
- [Subpart 111.79 — Receptacles](/cfr/46/chI-subchJ-part111-subpart111.79.md)
- [Subpart 111.81 — Outlet Boxes and Junction Boxes](/cfr/46/chI-subchJ-part111-subpart111.81.md)
- [Subpart 111.83 — Shore Connection Boxes](/cfr/46/chI-subchJ-part111-subpart111.83.md)
- [Subpart 111.85 — Electric Oil Immersion Heaters](/cfr/46/chI-subchJ-part111-subpart111.85.md)
- [Subpart 111.87 — Electric Air Heating Equipment](/cfr/46/chI-subchJ-part111-subpart111.87.md)
- [Subpart 111.91 — Elevators and Dumbwaiters](/cfr/46/chI-subchJ-part111-subpart111.91.md)
- [Subpart 111.95 — Electric Power-Operated Boat Winches](/cfr/46/chI-subchJ-part111-subpart111.95.md)
- [Subpart 111.97 — Electric Power-Operated Watertight Door Systems](/cfr/46/chI-subchJ-part111-subpart111.97.md)
- [Subpart 111.99 — Fire Door Holding and Release Systems](/cfr/46/chI-subchJ-part111-subpart111.99.md)
- [Subpart 111.101 — Submersible Motor-Driven Bilge Pumps](/cfr/46/chI-subchJ-part111-subpart111.101.md)
- [Subpart 111.103 — Remote Stopping Systems](/cfr/46/chI-subchJ-part111-subpart111.103.md)
- [Subpart 111.105 — Hazardous Locations](/cfr/46/chI-subchJ-part111-subpart111.105.md)
- [Subpart 111.106 — Hazardous Locations on OSVs](/cfr/46/chI-subchJ-part111-subpart111.106.md)
- [Subpart 111.107 — Industrial Systems](/cfr/46/chI-subchJ-part111-subpart111.107.md)
- [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](/cfr/46/chI-subchJ-part111-subpart111.108.md)