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C.F.R - Table of Contents

  • Title 1 - General Provisions
  • Title 2 - Grants and Agreements
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  • Title 47 - Telecommunication
  • Title 48 - Federal Acquisition Regulations System
  • Title 49 - Transportation
  • Title 50 - Wildlife and Fisheries

CFR > Title 49 - Transportation > SUBTITLE B—Other Regulations Relating to Transportation > CHAPTER II—FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (Parts 200–269) > 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 (§236.501 to §236.590) > 236.504—Operation interconnected with automatic block-signal system.

236.504—Operation interconnected with automatic block-signal system.

(a) A continuous inductive automatic train stop or train control system shall operate in connection with an automatic block signal system and shall be so interconnected with the signal system as to perform its intended function in event of failure of the engineer to acknowledge or obey a restrictive wayside signal or a more restrictive cab signal.
(b) An intermittent inductive automatic train stop system shall operate in connection with an automatic block signal system and shall be so interconnected with the signal system that the failure of the engineer to acknowledge a restrictive wayside signal will cause the intermittent inductive automatic train stop system to perform its intended function.
[49 FR 3386, Jan. 26, 1984]




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