Regulations last checked for updates: Feb 06, 2026

Title 49 - Transportation last revised: Jan 27, 2026
§ 235.1 - Scope.

This part prescribes application for approval to discontinue or materially modify block signal systems, interlockings, traffic control systems, automatic train stop, train control, or cab signal systems, or other similar appliances, devices, methods, or systems, and provides for relief from part 236 of this title.

source: 49 FR 3380, Jan. 26, 1984, unless otherwise noted.
cite as: 49 CFR 235.1