Is the Atenza compliant with China 6a or 6b?
1 Answers
The Atenza cannot be classified as either China 6a or 6b, and is generally referred to as a vehicle meeting the China 6 emission standards. Whether it is China 6a or 6b, both have passed the inspection by the General Administration of Quality Supervision, Inspection and Quarantine and are road-legal vehicles. Additional Information: 1. Two Phases: The China 6 emission standard is divided into two phases: China 6a and China 6b. The first to be implemented was China 6a, from July 1, 2019, to July 1, 2021, while China 6b was implemented from July 1, 2021, to July 1, 2023. It is important to note that the initial implementation primarily targeted heavy-duty gas vehicles. As a result, the certificates of conformity for household vehicles currently do not specify whether they are China 6a or 6b compliant. At this stage, all China 6 vehicles are considered China 6a compliant, as there is still a transition period of several years before the full implementation of China 6b. 2. Transition Phase: The China 6a emission standard serves as a transitional phase between China 5 and China 6, adopting the strictest values of the China 5 standard to meet the preliminary requirements of China 6. Compared to China 5, China 6b is nearly twice as stringent in all aspects, with pollutant emission limits equivalent to "Euro 6," and evaporation emissions and OBD requirements approaching those of the United States. Its rigor is considered the highest in the world, making China 6b the true China 6 standard.
