What is the Chinese equivalent of Euro 6 emission standards?
1 Answers
Euro 6 standards are equivalent to China's National 6a emission standards. The National 6 standard framework continues the European standard system while incorporating advanced experiences from U.S. standards in evaporative emissions, fuel emissions, and onboard diagnostic system regulations. Here is more information about automotive emission regulations: 1. Globally, automotive emission regulations have mainly formed three major systems: European, American, and Japanese. China's vehicle emission standards have always followed the European system. The Euro 6 emission standard was introduced in 2014. 2. In terms of limit levels, the National 6a phase limits are slightly stricter than the Euro 6 emission standard limits but more lenient than the U.S. Tier 3 emission standard requirements. The National 6b standard limits are essentially equivalent to the 2020 fleet average limits specified in the U.S. Tier 3 emission standards, making National 6 one of the strictest emission standards in the world. 3. As an upgraded version of the National 5 standard, National 6 has increased environmental requirements across multiple dimensions. The implementation of the National 6 emission standard is divided into two phases: Starting from July 1, 2020, all light-duty vehicles sold and registered must comply with National 6a limit requirements; from July 1, 2023, all light-duty vehicles sold and registered must comply with National 6b limit requirements.
