When did China's National VI vehicle emission standards come into effect?

[MaximusLee]

The National VI emission standards for light-duty vehicles were implemented nationwide starting from July 1, 2020. Below is relevant information about National VI: 1. Definition: The National VI Motor Vehicle Pollutant Emission Standards (Phase 6) were established to implement the Environmental Protection Law of the People's Republic of China and the Air Pollution Prevention and Control Law of the People's Republic of China, aiming to prevent pollution from exhaust emissions of compression-ignition and gas-fueled spark-ignition engine vehicles, protect the ecological environment, and safeguard human health. 2. Proposed delay: The suggestion to postpone the nationwide implementation of National VI emission standards was mainly based on two considerations. First, due to the impact of the pandemic, whether automakers could clear their existing inventory before the implementation of National VI standards. Second, the new National VI standards involve particulate matter emission limits, which require new vehicles to undergo corresponding testing and verification. Currently, as work and production resumption have not fully returned to normal, it was hoped that an appropriate delay would give automakers more time.