49 C.F.R. § 236.808 Signals, opposing.
Title 49 - Transportation
Roadway signals which govern movements in opposite directions on the same track.
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 G—Definitions
§ 236.808 Signals, opposing.