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What is the National Standard Level of National V (National 5)?

4 Answers
OliveMarie
07/29/25 5:25pm
National V (National 5) belongs to the National 4 vehicle category, meaning it meets the National 5 standard. Below are detailed introductions regarding National 4 and National 5 standards: 1. National 4: The sulfur content limit in National 4 standard gasoline is 150mg/kg. The National 4 emission standard is the fourth phase of China's national standards for motor vehicle pollutant emissions. It controls and reduces vehicle emissions to below specified levels through the application of technologies such as improved catalytic converter active layers, secondary air injection, and exhaust gas recirculation systems with cooling devices. 2. National 5: The sulfur content limit in National 5 standard gasoline is 50mg/kg. The National 5 emission standard is equivalent to the Euro V standard, which was officially implemented in Europe starting from September 1, 2009. In 2012, Beijing planned to implement the National V standard. Once fully implemented, vehicles that do not meet this emission standard would not be allowed to be sold in Beijing. To support the implementation of the National V emission standard, Beijing also planned to further improve fuel quality to align with the National V standard.
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SiennaRose
08/14/25 8:18am
I've noticed many people get confused about emission standards when buying cars. 'Guo V' actually refers to China's National Phase V emission standards, representing the fifth stage of China's motor vehicle emission regulations. Implemented around 2017, these standards primarily aim to reduce pollutants like PM2.5 and nitrogen oxides in vehicle exhaust. I recommend car buyers choose National Phase V compliant models as they're more environmentally friendly than Phase IV vehicles, plus they have easier registration and annual inspection processes. Many cities now give priority to National Phase V vehicles during traffic restrictions. When purchasing used cars, always check the manual to avoid older Phase IV models that might face transfer difficulties. With emission standards continuously upgrading to National Phase VI, understanding these can help you make worry-free and cost-effective car purchases while contributing to environmental protection. Remember, 'Guo V' is just an abbreviation - the higher the number, the newer and greener the standard.
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MacEleanor
10/13/25 6:50am
As a seasoned driver with over a decade of experience, I've personally witnessed the evolution of emission standards. China V refers to the fifth-stage national standard, which requires more thorough purification of vehicle exhaust. For instance, both engine design and catalytic converters have been optimized to reduce harmful gas emissions. The car I currently drive meets China V standards, saving me significant fuel costs while still being permitted in urban core areas under traffic restriction policies. In contrast, China IV-compliant vehicles face more limitations. When purchasing a car, pay special attention to the emission label or manual - choosing China V ensures better durability and environmental compliance. Actually, the progression from China I to China VI standards represents positive progress, driving automotive industry advancement while reducing pollution concerns in daily driving.
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VonVincent
11/26/25 7:49am
I often pay attention to environmental issues. China V represents China's fifth-stage emission standard, also known as National V. It primarily restricts pollutants such as carbon monoxide and hydrocarbons, reducing their impact on air quality. After implementation, many regions have seen a decrease in haze days. I recommend car owners prioritize National V or higher-standard models, as this not only benefits the environment but also helps comply with policies like used-car relocation restrictions. The upgrade in emission standards is part of the national strategy to promote cleaner transportation. Understanding it helps make greener choices. Meanwhile, National VI is already being promoted, and the numerical progress signifies technological advancement.
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