What is the China VI Emission Standard?

[GabrielaLee]

China VI emission standard refers to the National Sixth Stage Emission Standards for Motor Vehicle Pollutants. It is established to prevent environmental pollution caused by exhaust emissions from compression-ignition and gas-fueled spark-ignition engine vehicles, protect the ecological environment, and safeguard human health. The China VI emission standard specifies the following limits: 1. Carbon monoxide (CO) emission content: 700mg; 2. Non-methane hydrocarbon (NMHC) emission content: 68mg; 3. Nitrogen oxides (NOx) emission content: 60mg; 4. Particulate matter (PM) emission content: 4.5mg. Methods to check if a vehicle complies with China VI standard include: 1. Vehicle environmental protection compliance label; 2. The page with the vehicle certification number; 3. Estimating the emission standard based on the vehicle's manufacturing year; 4. Querying at the local vehicle management office using the original or a copy of the motor vehicle registration certificate.

[RebeccaFitz]

The China VI emission standard is China's sixth-stage vehicle pollutant emission control requirement, which is stricter than the previous China V standard and is divided into two phases: China VIa and China VIb. China VIa was implemented starting in 2020, targeting the reduction of nitrogen oxides (NOx), hydrocarbons (HC), particulate matter (PM), and other emissions for both gasoline and diesel vehicles. China VIb was fully enforced in 2023, with pollutant limits such as nitrogen oxides nearly halved, requiring vehicles to be equipped with high-efficiency after-treatment systems like three-way catalytic converters. Vehicles must also monitor emission data in real-time via OBD. Choosing a China VIb-compliant vehicle when purchasing can help avoid future licensing restrictions or depreciation risks while supporting the upgrade of eco-friendly technologies. It is recommended to regularly maintain the exhaust system and use qualified fuel to reduce carbon deposits that may affect compliance. These modifications make vehicle exhaust cleaner, contributing to improved air quality. Overall, the China VI standard reflects China's progress in automotive environmental protection.

[DaisyMarie]

The China VI emission standard is a stringent regulation established to reduce environmental pollution, setting limits for harmful substances in vehicle exhaust such as nitrogen oxides and particulate matter. Its implementation can significantly reduce urban smog and protect public health. As someone who cares about environmental protection, I view this as a positive change. Through this policy, the government encourages automakers to develop more efficient engine systems, and consumers should also prioritize purchasing vehicles compliant with China VIb standards or new energy vehicles to contribute to environmental protection. In the long run, reducing air pollution can improve quality of life. Every driver can start with daily maintenance, such as avoiding the use of low-quality fuel or excessive driving, and ensuring the emission system functions properly. These small actions, combined with the standard changes, can create a greener transportation environment.

[LaZane]

China VI is the new emission standard we drivers talk about. Starting from 2020, new vehicles must comply with it, and stricter requirements will be implemented by 2023. Essentially, it aims to make vehicle exhaust cleaner by reducing air pollutants like nitrogen oxides and particulate matter. For us car owners, choosing a China VI-compliant model when buying a new car makes registration easier, while older China V vehicles may be harder to sell or depreciate in value. Daily driving tips include paying attention to fuel quality (avoiding small workshop fuels) and regularly checking the exhaust system to prevent blockages that could affect emission performance. This requirement is quite good for improving urban environments.