Home / Standards / GB/T 46390-2025 GB/T 46390-2025 Active Requirements for examination and evaluation of urban luminous environment 城市光环境体检评估要求 Standard Type GBT ICS 91.160.20 CCS P31 Status 现行 Issue Date 2025-10-05 Implementation 2026-05-01 Responsible Dept 国家标准委 Drafting Unit N/A