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The items below are the currently open NTSB recommendations regarding rail and the OHMS responses. For copies of the specific letters containing the NTSB/OHMS dialog, click the link for the specific item and review the list of "Related Downloads" on the right.

NTSB Classifications:

  • OAR - Open Acceptable Response
  • OAA - Open Acceptable Action
  • OAAR - Open Acceptable Alternative Action
  • OUA - Open Unacceptable Action
  • OUR - Open Unacceptable Response
  • UCL - Unclassified (until NTSB Classifies)
Currently Open Recommendations
 
 R-12-5 Enhanced protection of DOT-111 Tank Cars used in ethanol and crude oil service; OAR Mar 2, 2012
 
 R-12-7 Adoption of American Association of Railroads (AAR) center sill or draft sill attachment designs; OAR Mar 2, 2012
 
 R-12-6 Bottom Outlet Valve Closure; OAR Mar 2, 2012
 
 R-08-13 Optimum Separation Requirements; OAR May 22, 2008
 
 R-07-4 Immediate Notification to Emergency Responders; OAR Apr 24, 2007
 
 R-04-10 Loading Unloading; OUR Dec 15, 2004
NTSB Menu
 
 Hazmat NTSB Recommendations
 
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 Closed Recommendations
 
 Pipeline NTSB Recommendations
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