The "Technical Standards for Organic Fertilizer Engineering" is now approved as a national standard, numbered GB/T51448-2022, which will come into force on February 1, 2023. This standard is published on the website of the Ministry of Housing and Urban-Rural Development (www.mohurd.gov.cn), and is published by China Planning Publishing House Co., Ltd. organized by the Institute of Standards and Quotas of the Ministry of Housing and Urban-Rural Development. Ministry of Housing and Urban-Rural Development October 31, 2022