PHMSA - NTSB Safety Recommendations

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NTSB Safety Recommendations

The Pipeline and Hazardous Materials Safety Administration is required by law to respond to Safety Recommendations issued by the National Transportation Safety Board (NTSB), an independent federal agency charged by Congress with investigating significant hazardous materials accidents/incidents.

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)

CAR - Closed Acceptable Response
CAA - Closed Acceptable Action
CAAA - Closed Acceptable Alternative Action
CAAR - Closed Acceptable Alternative Response
CNLA - Closed No Longer Applicable
CUA - Closed Unacceptable Action
CUR - Closed Unacceptable Response

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	NTSB Recommendations: Hazmat
	PHMSA is required by law to respond to recommendations issued by the National Transportation Safety Board (NTSB).

	NTSB Recommendations: Pipeline
	PHMSA is required by law to respond to recommendations issued by the National Transportation Safety Board (NTSB).

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