49 CFR 236.503 - Automatic brake application; initiation when predetermined rate of speed exceeded.

Regulations last checked for updates: May 04, 2025

Title 49 - Transportation last revised: Mar 20, 2025

View all text of Subpart E [§ 236.501 - § 236.590]

§ 236.503 - Automatic brake application; initiation when predetermined rate of speed exceeded.

An automatic train control system shall operate to initiate an automatic brake application when the speed of the train exceeds the predetermined rate as required by the setting of the speed control mechanism.

authority: 49 U.S.C. 20102-20103,20107,20133,20141,20157,20301,20306,20501,20701,21301,21304; 28 U.S.C. 2461 note; and 49 CFR 1.89

source: 33 FR 19684, Dec. 25, 1968, unless otherwise noted.

cite as: 49 CFR 236.503