Section 192.11 - Petroleum gas systems(a) Each plant that supplies petroleum gas by pipeline to a natural gas distribution system must meet the requirements of this part and NFPA 58 or NFPA 59 (both incorporated by reference, see§ 192.7 ), based on the scope and applicability statements in those standards.(b) Each pipeline system subject to this part that transports only petroleum gas or petroleum gas/air mixtures must meet the requirements of this part and NFPA 58 or NFPA 59 (both incorporated by reference, see§ 192.7 ), based on the scope and applicability statements in those standards.(c) In the event of a conflict between this part and NFPA 58 or NFPA 59 (both incorporated by reference, see§ 192.7 ), NFPA 58 or NFPA 59 shall prevail if applicable based on the scope and applicability statements in those standards.Amdt. 192-78, 61 FR 28783, June 6, 1996, as amended by Amdt. 192-119, 80 FR 180 , Jan. 5, 2015; 80 FR 46847 , Aug. 6, 2015