U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 21, 2026

All TitlesTitle 49Chapter IIPart 229Subpart C - Subpart C—Safety Requirements

GENERAL REQUIREMENTS
§ 229.41 - Protection against personal injury.
§ 229.43 - Exhaust and battery gases.
§ 229.45 - General condition.

BRAKE SYSTEM
§ 229.46 - Brakes: general.
§ 229.47 - Emergency brake valve.
§ 229.49 - Main reservoir system.
§ 229.51 - Aluminum main reservoirs.
§ 229.53 - Brake gauges.
§ 229.55 - Piston travel.
§ 229.57 - Foundation brake gear.
§ 229.59 - Leakage.

DRAFT SYSTEM
§ 229.61 - Draft system.

SUSPENSION SYSTEM
§ 229.63 - Lateral motion.
§ 229.64 - Plain bearings.
§ 229.65 - Spring rigging.
§ 229.67 - Trucks.
§ 229.69 - Side bearings.
§ 229.71 - Clearance above top of rail.
§ 229.73 - Wheel sets.
§ 229.75 - Wheels and tire defects.

ELECTRICAL SYSTEM
§ 229.77 - Current collectors.
§ 229.79 - Third rail shoes.
§ 229.81 - Emergency pole; shoe insulation.
§ 229.83 - Insulation or grounding of metal parts.
§ 229.85 - High voltage markings: doors, cover plates, or barriers.
§ 229.87 - Hand-operated switches.
§ 229.89 - Jumpers; cable connections.
§ 229.91 - Motors and generators.

INTERNAL COMBUSTION EQUIPMENT
§ 229.93 - Safety cut-off device.
§ 229.95 - Venting.
§ 229.97 - Grounding fuel tanks.
§ 229.99 - Safety hangers.
§ 229.101 - Engines.

STEAM GENERATORS
§ 229.103 - Safe working pressure; factor of safety.
§ 229.105 - Steam generator number.
§ 229.107 - Pressure gauge.
§ 229.109 - Safety valves.
§ 229.111 - Water-flow indicator.
§ 229.113 - Warning notice.
§ 229.114 - Steam generator inspections and tests.

CABS AND CAB EQUIPMENT
§ 229.115 - Slip/slide alarms.
§ 229.117 - Speed indicators.
§ 229.119 - Cabs, floors, and passageways.
§ 229.121 - Locomotive cab noise.
§ 229.123 - Pilots, snowplows, end plates.
§ 229.125 - Headlights and auxiliary lights.
§ 229.127 - Cab lights.
§ 229.129 - Locomotive horn.
§ 229.131 - Sanders.
§ 229.133 - Interim locomotive conspicuity measures—auxiliary external lights.
§ 229.135 - Event recorders.
§ 229.136 - Locomotive image and audio recording devices.
§ 229.137 - Sanitation, general requirements.
§ 229.139 - Sanitation, servicing requirements.
§ 229.140 - Alerters.
§ 229.141 - Body structure, MU locomotives.
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