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This report concerns two issues: 1) whether color vision is necessary for locomotive crews who work on railroads where the signal system is either completely redundant with regard to signal color and signal orientation or the signal system only uses signal orientation; 2) what criteria should the...
This Directive requires railroad tank car owners to replace unapproved valves currently installed in some tank cars. The valves in question are UNNR ball valves manufactured and sold by McKenzie Valve & Machining LLC (McKenzie). Recent FRA investigations revealed that the valves were not...