Home / Standards / GB/T 46548-2025 GB/T 46548-2025 Active Technical specification for geological environment investigation of coal mining subsidence areas 采煤沉陷区地质环境调查技术规范 Standard Type GBT ICS 07.060 CCS Z 06 Status 现行 Issue Date 2025-12-02 Implementation 2026-04-01 Responsible Dept 中国煤炭工业协会 Drafting Unit N/A