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Keywords: Freight Railroads Background
Railworthiness Directive for Railroad Tank Cars Equipped With Certain McKenzie Valve & Machining LLC Valves
Keywords: Railworthiness Directive; Hazerdous Materials; Valve; Tank Cars
Abstract: 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...