What does the National 6 Emission Standard mean?
2 Answers
National 6, the full name is the National Sixth Stage Motor Vehicle Pollutant Emission Standard, refers to vehicles that meet the emission requirements of this standard. The most notable aspect of the National 6 standard is its first-time incorporation of American standards. Here are some additional details: 1. Two phases of National 6: National 6a and National 6b. The implementation date of the National 6 standard in Beijing is January 1, 2020. Currently, the country divides the 'National 6 Standard' into 'National 6a' and 'National 6b' phases, with plans to implement them nationwide in 2020 and 2023, respectively. The National 6 Standard, or 'National Sixth Stage Motor Vehicle Pollutant Emission Standard,' is established to enforce environmental protection laws, reduce and prevent vehicle exhaust pollution, protect the ecological environment, and ensure human health. 2. Implementation of the National 6 Standard: The National 6 Standard was issued by the Ministry of Environmental Protection and the General Administration of Quality Supervision, Inspection, and Quarantine on December 23, 2016, and June 22, 2018, respectively. The 'Limits and Measurement Methods for Emissions from Heavy-Duty Diesel Vehicles (China VI)' came into effect on July 1, 2019. The implementation of the National 6 Standard imposes stricter requirements on pollutants such as carbon monoxide, nitrogen oxides, and hydrocarbons.
I remember the emission standards were much looser when I bought a car ten years ago, but now with China 6, things have really changed. China 6 refers to the National Sixth Stage Vehicle Emission Standard, a set of government regulations designed to reduce tailpipe pollutants like carbon monoxide, nitrogen oxides, and particulate matter from new vehicles. It’s divided into China 6a and China 6b phases, with the latter being stricter. After switching from a China 5-compliant car to a China 6 one, I noticed almost no exhaust odor—much more eco-friendly, and it helps reduce smoggy days. The standard has been rolled out nationwide, forcing automakers to upgrade engine technologies, such as adding particulate filters for finer emission control. I recommend car buyers prioritize China 6-compliant models when purchasing a new vehicle—not just for fuel savings but also as a responsibility tied to urban air quality improvement and the health of future generations. Small details matter in the long run, as they can significantly reduce air pollution-related health risks.
