49 C.F.R. § 233.1 Scope.
Title 49 - Transportation
This part prescribed reporting requirements with respect to methods of train operation, block signal systems, interlockings, traffic control systems, automatic train stop, train control, and cab signal systems, or other similar appliances, methods, and systems.
Title 49: Transportation
PART 233—SIGNAL SYSTEMS REPORTING REQUIREMENTS
§ 233.1 Scope.
