2009年2月23日,住房和城乡建设部发布《油气输送管道跨越工程设计规范》国家标准,编号为GB50459—2009,自2009年12月1日起实施。该规范由住房和城乡建设部标准定额研究所组织中国计划出版社(http://www.jhpress.com)出版发行。《油气输送管道跨越工程设计规范》国家标准发布@本 On February 23, 2009, the Ministry of Housing and Urban-Rural Development promulgated the national standard “Code for Design of Oil and Gas Transmission Pipeline Crossing Project” numbered GB50459-2009 and implemented since December 1, 2009. This code is published and published by China Planning Press (http://www.jhpress.com) organized by the Ministry of Housing and Urban-Rural Development and Reform Commission. “Oil and Gas Pipeline Project Design Code” published by the national standard @ this