Technical Specifications for Operation Safety of Motor Vehicles (GB 7258)

GB 7258 "Technical Specifications for Operation Safety of Motor Vehicles" is the most foundational and core technical regulation governing motor vehicle safety management in China. Far from being a mere recommendation, it is a mandatory national standard that fundamentally defines the mandatory safety and technical conditions a motor vehicle must satisfy to be road-legal.

📜 Regulatory Standing and Evolution

GB 7258 serves as the core pillar of the "National Technical Standards for Motor Vehicle Safety" mandated by the Road Traffic Safety Law, carrying a legal standing equivalent to the "constitution" of the motor vehicle safety domain.

Since its initial rollout in 1987, the standard has undergone four major revisions in 1997, 2004, 2012, and 2017. The current enforced version is GB 7258-2017, which took effect on 1 January 2018.

Presently, the standard is undergoing its fifth revision. The public consultation draft for GB 7258-2025 was gazetted in November 2025, with nationwide implementation expected six months post-official release.

🎯 Scope of Application

GB 7258 applies to all motor vehicles plying public roads across China.

• Vehicle Types Covered: Encompasses conventional internal combustion engine (ICE) vehicles, pure electric vehicles (EVs), hybrid electric vehicles (HEVs/PHEVs), buses and coaches, school buses, commercial lorries/trucks, motorcycles, and motorhomes/caravans.

• Exclusions: The standard does not apply to trams or wheeled special-purpose mobile machinery designed primarily for enclosed work sites.

🧱 Core Technical Provisions

GB 7258 establishes an exhaustive automotive safety technical framework, laying down stringent requirements for whole vehicles and their key assemblies. Its structure primarily spans the following areas:

• Whole Vehicle: Regulates vehicle identification marks (such as VIN), overall dimensions, axle loads, and gross vehicle weight (GVW) parameters.

• Engine and Drive Motor: Sets operational and functional safety criteria for powertrains and electric traction motors.

• Steering System: Ensures steering responsiveness, precision, and fail-safe reliability.

• Braking System: Governs the braking performance of service brake, parking brake, and secondary/emergency braking systems.

• Lighting, Signalling Devices, and Other Electrical Equipment: Specifies standards for headlamps, tail lamps, turn indicators, horns, and auxiliary electrical architecture.

• Running Gear and Driveline System: Details technical specifications for tyres, suspension setups, drive shafts, and drivetrain components.

• Vehicle Body: Defines parameters for structural rigidity, crashworthiness, and cabin occupant protection.

• Safety Protective Devices: Mandates active and passive safety features including seatbelts, SRS airbags, fire prevention, and anti-theft systems.

• Additional Requirements for Special Vehicles: Outlines dedicated technical provisions for emergency vehicles (fire engines, ambulances, police cars) and mobility-adapted vehicles for persons with disabilities.

✨ Key Highlights of the Latest Draft for Comments

The public consultation draft is tailored to keep pace with the rapid evolution of New Energy Vehicles (NEVs) and intelligent driving technologies, featuring key revisions such as:

• Strengthening NEV Safety: Introduces dedicated regulations on "single-pedal" drive logic, traction battery safety (mandating compliance with the GB 38031 standard), and fail-safe emergency door unlatching following high-voltage power cut-offs.

• Regulating Intelligent Driving: Introduces technical safety standards for Level 3 (L3) and higher autonomous driving vehicles, alongside strict conditions for combined driver assist system engagement/disengagement and Driver Monitoring Systems (DMS, e.g. hands-off and eyes-off detection).

• Capping Default Acceleration: Mandates that passenger cars must default upon start-up to an operating mode where the 0-100 km/h acceleration sprint takes no less than 5 seconds.

• Upgrading Commercial Vehicle Safety: Requires all commercial lorries/trucks (excluding low-speed vehicles and municipal refuse trucks) to be fitted with Autonomous Emergency Braking (AEB) as standard .

• New Intelligent Safety Features: Introduces mandates for Pedal Misapplication Mitigation (acceleration suppression) functions and in-vehicle infotainment (IVI) safety limits (such as restricting video playback within the driver's view while moving).

In a nutshell, GB 7258 serves as the cornerstone technical regulation safeguarding road traffic safety in China. By enforcing mandatory technical compliance across vehicle design, manufacturing, homologation, and roadworthiness inspections, it delivers comprehensive protection for all road users. As automotive technology continues to advance, the standard will continuously evolve to address emerging safety frontiers.