49 CFR 236.511 - Cab signals controlled in accordance with block conditions stopping distance in advance.

Regulations last checked for updates: Feb 06, 2026

Title 49 - Transportation last revised: Jan 27, 2026

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

§ 236.511 - Cab signals controlled in accordance with block conditions stopping distance in advance.

The automatic cab signal system shall be arranged so that cab signals will be continuously controlled in accordance with conditions described in § 236.205 that obtain at least stopping distance in advance.

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 236.511