Standards

DB21/T 4374-2025 Active

DB21/T 4374-2025 Forest Management Table

Publish Date: 2025-12-30

DB21/T 4339-2025 Active

DB21/T 4339-2025

Publish Date: 2025-12-16

DB21/T 4340-2025 Active

DB21/T 4340-2025

Publish Date: 2025-12-16

DB21/T 4341-2025 Active

DB21/T 4341-2025

Publish Date: 2025-12-16

DB21/T 4342-2025 Active

DB21/T 4342-2025

Publish Date: 2025-12-16

DB21/T 3163-2025 Active

DB21/T 3163-2025 Green Building Construction Drawing Design Evaluation Technical Regulations

Publish Date: 2025-12-16

DB21/T 3164-2025 Active

DB21/T 3164-2025 Green Building Construction Drawing Design Review Procedures

Publish Date: 2025-12-16

DB21/T 4343-2025 Active

DB21/T 4343-2025 Urban Smart Heating System Technical Regulations

Publish Date: 2025-12-16

DB21/T 1225-2025 Active

DB21/T 1225-2025 Seismic-resistant and Liveable Farmhouse Design Standards

Publish Date: 2025-12-16

DB21/T 4344-2025 Active

DB21/T 4344-2025 Road transport electronic certificate operation service specification

Publish Date: 2025-12-16

DB21/T 4345-2025 Active

DB21/T 4345-2025 Bus shuttle customized service specification

Publish Date: 2025-12-16

DB21/T 4346-2025 Active

DB21/T 4346-2025 The standard for urban and rural transportation integration operation service

Publish Date: 2025-12-16