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52550
  
  

  13
Mar
2015
Directives
Railworthiness Directive for Railroad Tank Cars Equipped With Certain McKenzie Valve & Machining LLC Valves

Subject
                    Freight Operations,
                    Hazardous Materials,
                    Motive Power and Equipment

**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...
Directive Type
          Safety

  Directive Number
              Railworthiness Directive, Notice No. 1
    19
Apr
2002
Directives
Railworthiness Directive for Pre-1974 GATX-Built Tanks with Reinforcement Bars
Author
          Office of Railroad Safety

Subject
                    Freight Operations,
                    Hazardous Materials,
                    Motive Power and Equipment

**Keywords:** Railworthiness Directive; Hazerdous Materials; Reinforcing Bars; Tank Cars

Directive Type
          Safety

  Directive Number
              Railworthiness Directive, Notice No. 4

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