The "Construction and Acceptance Standards for Urban Gas Transmission and Distribution Projects" is now approved as a national standard, numbered GB/T51455-2023, and will be implemented from September 1, 2023. The original industry standard "Code for Construction and Acceptance of Urban Gas Transmission and Distribution Projects" (CJJ33-2005) was abolished at the same time. This standard is made public on the website of the Ministry of Housing and Urban-Rural Development (www.mohurd.gov.cn), and is published and distributed by China Construction Publishing and Media Co., Ltd. organized by the Standards and Quota Research Institute of the Ministry of Housing and Urban-Rural Development. Ministry of Housing and Urban-Rural Development May 23, 2023
GB/T 51455-2023 history
2023GB/T 51455-2023 Construction and acceptance standards for urban gas transmission and distribution projects