When will China 6 be implemented?
2 Answers
China 6 is divided into two standards, and the implementation times for each are as follows: 1. China 6a: On July 1, 2020, light-duty vehicles will be required to comply with the China 6a emission standard. 2. China 6b: On July 1, 2023, light-duty vehicles will be required to comply with the China 6b emission standard. Below is an introduction to China 5 and China 6: 1. Meaning: The higher the number, the more environmentally friendly the vehicle's emissions are, and the later the standard is issued, the stricter the vehicle's energy-saving and emission-reduction requirements are. 2. Pollution: China 1 has the highest pollution level, while China 6 has the lowest, generally categorized by year. 3. Engine: The biggest difference between China 5 and China 6 vehicles is that China 6 vehicles use a more efficient three-way catalytic converter, allowing the engine's emissions to meet the China 6 standard. 4. Upgraded version: The China 6 emission standard is an upgraded version of the current China 5 emission standard. It imposes stricter and more scientific requirements on vehicle tailpipe emissions.
China's National VI emission standards actually came into effect on July 1, 2019, initially with some regions implementing the transitional National VIa phase. On July 1, 2020, major cities like Beijing and Shanghai prioritized switching to the stricter National VIb standards. By July 1, 2023, all newly produced and sold gasoline vehicles nationwide were required to comply with National VIb regulations. From my experience in vehicle maintenance, this phased implementation was designed to give manufacturers buffer time to upgrade technologies and reduce exhaust pollution. Car buyers should verify the emission label shows National VIb to avoid future urban driving restrictions; meanwhile, National V vehicles often saw discounted clearance sales during the transition. Overall, these standards have significantly contributed to China's air quality improvement, with new vehicles now having far superior emission control compared to older models.
