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...
Keywords: Bridge and Structures Safety
Keywords: Continuous Welded Rail; CWR
Keywords: Bridge and Structures Safety; Grating; bridge worker; scaffolding; timber tie