New Standard: GB 13392-2023

China has issued a revised national standard for vehicle markings used in the road transport of dangerous goods. GB 13392-2023, titled Vehicle Marking of Dangerous Goods for Road Transportation, was released on September 8, 2023, and it came into effect on April 1, 2025. It replaces the older GB 13392-2005 standard.

Scope and Applicability

The standard applies to all road transport vehicles carrying dangerous goods, except those transporting radioactive materials. It sets clear rules for the classification, design, production, application, and maintenance of vehicle safety markings.

Key Requirements

Marking Types:

• Rectangular markings: Indicate the UN number and hazard ID.
• Diamond-shaped markings: Show hazard classes through standardized symbols and colors.
• Special symbols: Highlight environmentally hazardous or elevated temperature substances.

Technical Specifications:

• Standards for materials, colors, durability, and dimensions.
• Performance benchmarks for photometric and colorimetric properties, chemical resistance, weatherability, and adhesion.

Testing and Inspection:

• Defined methods for verifying compliance with technical and performance standards before use.

Installation and Maintenance:

• Clear rules for the placement, visibility, and upkeep of markings to ensure safety during transport.

Key Updates from GB 13392-2005

• Broadened Definitions: New terms reflect evolving safety concerns (e.g., environmental hazards).
• Updated Designs: Improved sizing and layout for better visibility.
• Stricter Testing: Enhanced test protocols for durability and visibility.
• Detailed Guidance: More precise installation and maintenance procedures.

Implementation Timeline

• Effective Date: April 1, 2025.
• Manufacturers, transport companies, and enforcement agencies must align their practices with the updated requirements by this date.

References:

• GB 13392-2023 (English Translation) – Chinese Standard Library
• Code of China: GB 13392-2023 Overview