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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 G—Definitions (§236.700 to §236.838) > 236.813a—State, most restrictive.
236.813a—State, most restrictive.
The mode of an electric or electronic device that is equivalent to a track relay in its deenergized position.
[49 FR 3388, Jan. 26, 1984]