Following the investigation of the natural gas transmission pipeline accident in the town of San Bruno California, the National Transportation Safety Board (NTSB) issued a series of recommendations, one of which was directed to the American Gas Association (AGA) and the Interstate Natural Gas Association of America (INGAA). It stated:
Report to the National Transportation Safety Board on your progress to develop and introduce advanced in-line inspection platforms for use in gas transmission pipelines not currently accessible to existing in-line inspection platforms, including a timeline for implementation of these advanced platforms.” (P-11-32) (emphasis added)
The AGA/INGAA joint response, reporting on the progress that has been made to advance technologies for traditionally unpiggable pipelines, has been delivered to the NTSB.
April 30, 2013