On June 28, 2018, the Ministry of Ecology and Environment (MEE) of the People’s Republic of China released the final rule for the China VI emission standard for heavy-duty vehicles. The China VI standard will be implemented in two phases. China VI-a will take effect on July 1, 2019 for new gas-powered heavy-duty vehicles (HDVs), on July 1, 2020 for new urban HDVs, and July 1, 2021 for the remaining new HDVs. China VI-b will take effect on January 1, 2021 for new gas-powered HDVs, then on July 1, 2023 for all new HDVs. When fully implemented, China VI will require all new HDVs sold in China to meet the standard.