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Title 49: Transportation
Subtitle B: Other Regulations Relating to Transportation (Continued)
CHAPTER II: FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
PART 236: RULES, STANDARDS, AND INSTRUCTIONS GOVERNING THE INSTALLATION, INSPECTION, MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES
Subpart A: Rules and Instructions: All Systems
: Roadway Signals and Cab Signals
236.22 - Semaphore signal arm; clearance to other objects.
At least one-half inch clearance shall be provided between semaphore signal arm, and any object that may interfere with its operation.
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