PHMSA issued an Advisory Bulletin regarding telephonic reporting to the National Response Center (NRC). 78 Fed. Reg. 6402 (January 30, 2013). The Advisory notes that existing pipeline safety regulations under 49 C.F.R. Parts 191.5 and 195.52 require gas, liquid and LNG operators to report incidents to the NRC at the earliest practicable opportunity, “usually…