On July 1, 2021, China began to fully implement the China VI emission standard for heavy-duty diesel vehicles nationwide, namely GB 17691-2018 Limits and Measurement Methods for Emissions from Diesel-fueled Heavy-duty Vehicles (China VI).

Previously, the Ministry of Ecology and Environment, the Ministry of Industry and Information Technology and the General Administration of Customs issued a joint announcement in April 2021 to stipulate the implementation of China VI emission standards. The details are as follows：

·           From July 1, 2021, the production and sales of heavy-duty diesel vehicles that fail to meet the China VI emission standard shall be prohibited (the production date shall be subject to the date on which the motor vehicle certificate is uploaded and the sales date shall be subject to the date indicated on the motor vehicle sales invoice); imported heavy-duty diesel vehicles shall comply with the China VI emission standard (the date of import shall be subject to the date of arrival marked on the import certificate of the goods).

·           As the responsible entity for the environmental friendly production, automobile manufacturers and importers shall disclose the vehicle emission inspection information and pollution control technology information before the vehicles leave the factory or enter the country according to the law of the People’s Republic of China on the Prevention and Control of Atmospheric Pollution and relevant regulations, and upload the vehicle information sheet to ensure that the actual vehicles produced/imported meet the requirements of the China VI emission standard.

·           The emission concentration limits of nitrogen oxide (NOx) at the valid data point in PEMS test on real road for heavy-duty vehicles and the conformity factor (CF) of real driving emissions test for light-duty vehicles shall be implemented according to the limits and relevant requirements of corresponding standards. Heavy-duty vehicles meeting the requirements of the 6b emission standard shall be connected for the remote emission data monitoring according to the requirements of standards and specifications.

Overseas heavy-duty diesel vehicle manufacturers shall conduct inspection and information disclosure in accordance with the requirements of GB 17691-2018, otherwise their products will be unable to enter the Chinese market.

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