49 C.F.R. § 236.515 Visibility of cab signals.
Title 49 - Transportation
The cab signals shall be plainly visible to member or members of the locomotive crew from their stations in the cab. [49 FR 3386, Jan. 26, 1984]
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 E—Automatic Train Stop, Train Control and Cab Signal Systems
Standards
§ 236.515 Visibility of cab signals.