Open Recommendations
The following are currently open NTSB Recommendations made regarding pipelines to PHMSA.
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)