When will the China VI emission standard be implemented in Wuhan?

[DelEmily]

Nationally, China VIa will be implemented from July 1, 2020, and China VIb will be implemented from July 1, 2023. Wuhan follows the national timeline. Below is an introduction to the China VI emission standard: 1. The China VI emission standard refers to the sixth-stage emission control requirements outlined in the "Limits and Measurement Methods for Emissions from Light-duty Vehicles (China VI)" (GB18352.6-2016), issued by relevant authorities at the end of 2016. According to the plan of the Ministry of Ecology and Environment, the China VI emission standard will be officially implemented nationwide on July 1, 2020. 2. When the China VI emission standard was first introduced, it was clearly stated that it would be implemented in two phases: "China VIa" and "China VIb." According to the document, the two emission standards, "China VIa" and "China VIb," will be implemented on July 1, 2020, and July 1, 2023, respectively. 3. In terms of emission values, "China VIa" is similar to "China V," serving as a transitional phase from "China V" to "China VI." "China VIb" is the true "China VI" emission standard. The "China VIb" standard explicitly stipulates that the total hydrocarbon (THC) limit is half that of "China VIa."