Code of Federal Regulations > Title 49 > Chapter III > Part 393 > Subpart C

Regulations last checked for updates: May 23, 2025

Title 49 - Transportation last revised: May 21, 2025

§ 393.40 - Required brake systems.

§ 393.41 - Parking brake system.

§ 393.42 - Brakes required on all wheels.

§ 393.43 - Breakaway and emergency braking.

§ 393.44 - Front brake lines, protection.

§ 393.45 - Brake tubing and hoses; hose assemblies and end fittings.

§ 393.46 - [Reserved]

§ 393.47 - Brake actuators, slack adjusters, linings/pads and drums/rotors.

§ 393.48 - Brakes to be operative.

§ 393.49 - Control valves for brakes.

§ 393.50 - Reservoirs required.

§ 393.51 - Warning signals, air pressure and vacuum gauges.

§ 393.52 - Brake performance.

§ 393.53 - Automatic brake adjusters and brake adjustment indicators.

§ 393.55 - Antilock brake systems.

authority: 49 U.S.C. 31136,31151,31502; sec. 1041(b), Pub. L. 102-240, 105 Stat. 1914, 1993; secs. 5301 and 5524, Pub. L. 114-94, 129 Stat. 1312, 1543, 1560; and 49 CFR 1.87

source: 33 FR 19735, Dec. 25, 1968, unless otherwise noted.