Home / Standards / GB/T 30949-2025 GB/T 30949-2025 Upcoming Specification for post evaluation of water saving irrigation project 节水灌溉项目后评价规范 Standard Type GBT ICS 93.160 CCS P57 Status 即将实施 Issue Date 2025-12-31 Implementation 2026-07-01 Responsible Dept 水利部 Drafting Unit N/A