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Highway

The items below are the currently open NTSB recommendations regarding highways 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
 
H-04-23 Nurse Tank Inspections; OAR Jul 1, 2004
 
H-09-01 Mobile Acetylene Trailers; OAR Mar 5, 2009
 
H-09-02 Mobile Acetylene Trailers; OAR Mar 5, 2009
 
H-11-4 Rollover Prevention Program; OAR Sep 2, 2011
 
H-11-5 Cargo Tank Performance Standards; OAR Sep 2, 2011
 
H-11-6 Cargo Tank Performance Standards; OAR Sep 2, 2011
 
H-12-3 Verification of chemical compatibility of hose assembly; OAR Feb 4, 2013
 
H-12-4 Passive emergency shutdown for partial failure of hose assembly; OUR Feb 4, 2013
 
H-12-6 Guidance on testing and recordkeeping requirements of 49 CFR 180.407; OUR Feb 4, 2013
 
H-92-1 Cargo tanks; OAR Mar 20, 1992
 
H-98-27 Wetlines; OUR May 18, 1998
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