49 C.F.R. § 236.816 Superiority of trains.
Title 49 - Transportation
The precedence conferred upon one train over other trains by train order or by reason of its class or the direction of its movement.
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
§ 236.816 Superiority of trains.