49 C.F.R. § 236.502 Automatic brake application, initiation by restrictive block conditions stopping distance in advance.
Title 49 - Transportation
An automatic train-stop or train-control system shall operate to initiate an automatic brake application at least stopping distance from the entrance to a block, wherein any condition described in §236.205 obtains, and at each main track signal requiring a reduction in speed.
Title 49: Transportation
PART 236—RULES, STANDARDS, AND INSTRUCTIONS GOVERNING THE INSTALLATION, INSPECTION, MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES
Subpart E—Automatic Train Stop, Train Control and Cab Signal Systems
Standards
§ 236.502 Automatic brake application, initiation by restrictive block conditions stopping distance in advance.
