PG&E embraces new NTSB safety recommendations for natural gas industry PG&E is embracing the National Transportation Safety Board’s new safety recommendations for the gas pipeline industry. These recommendations were a result of a recent safety study on integrity management of gas transmission pipelines in urban areas completed by the NTSB. PG&E has already completed or is in the process of implementing many of these new safety recommendations. Additionally PG&E has closed nine out of 12 safety recommendations in response to the 2010 pipeline accident in San Bruno. Of the three remaining safety recommendations, the NTSB considers PG&E's progress "open-acceptable response," which means acceptable progress, pending completion.