Does National VI represent National 6 or National 5?
2 Answers
Ⅵ is a Roman numeral, corresponding to the Arabic numeral 6, so National VI is National 6. Below are detailed explanations: 1. National 6 Standard: The National 6 Standard, officially known as the 'National Sixth Stage Emission Standards for Motor Vehicles,' was established to implement environmental protection laws, reduce and prevent vehicle exhaust pollution, protect the ecological environment, and ensure human health. 2. Categories of National 6: Currently, the National 6 Standard is divided into two phases: 'National 6A' and 'National 6B,' with plans for nationwide implementation in 2020 and 2023, respectively. Compared to National 6A, National 6B imposes stricter emission requirements for carbon monoxide, non-methane hydrocarbons, nitrogen oxides, and PM fine particulate matter, with significantly tighter limits. National 6A can be seen as a transitional phase towards National 6B.
When I was buying a car, I paid special attention to the emission standards. China VI actually means China 6, as VI stands for 6 in Roman numerals. Nowadays, most new cars meet the China 6 standard, which is significantly stricter than China 5. For example, the carbon monoxide emission limit has been almost halved. Recently, I've noticed many cities imposing restrictions on China 5 vehicles, while my China 6 car purchased last year has much easier access to urban areas. I recommend checking the environmental labels carefully when choosing a car, especially since there are now two phases: China 6a and China 6b. Most new models comply with the stricter China 6b standard.
