What is China National V Emission Standard Equivalent To?
2 Answers
China National V, also known as 'China 5', refers to the 'Fifth Stage National Standard for Light-Duty Vehicle Emissions'. It is equivalent to the Euro 5 standard implemented by the European Union since 2009, imposing stricter limits on vehicle pollutants such as nitrogen oxides (NOx), hydrocarbons (HC), carbon monoxide (CO), and particulate matter (PM). Each upgrade from China I to China IV has reduced per-vehicle pollution by 30% to 50%. Approved by relevant authorities, China officially implemented the China 5 standard nationwide starting January 1, 2017. Purpose of Emission Standards: Automotive emission standards are established to enforce environmental protection laws, mitigate and prevent vehicle exhaust pollution, preserve ecological balance, and safeguard public health. They aim to control harmful emissions including CO (carbon monoxide), HC (hydrocarbons), NOx (nitrogen oxides), and PM (particulate matter/smoke) from vehicle exhaust. China is currently phasing in the Sixth Stage Emission Standard (China 6), which imposes even more stringent requirements on CO, NOx, and HC emissions. Roman numerals denote different stages of China's automotive emission standards, with the following correspondence: Ⅰ——China 1 Emission Standard; Ⅱ——China 2 Emission Standard; III——China 3 Emission Standard; Ⅳ——China 4 Emission Standard; Ⅵ——China 6 Emission Standard.
As someone working in the automotive repair industry, China V refers to the National Phase 5 Emission Standard. From my daily experience, I know it was implemented nationwide around 2017, replacing the China IV standard, primarily tightening the emission limits for particulate matter and nitrogen oxides. Looking back, this standard pushed automakers to upgrade engine technology and reduce fuel consumption; my customers have reported that China V vehicles run more smoothly and have slightly lower maintenance costs. If you're buying a used or new car, you can check the emission standard on the vehicle registration certificate or nameplate—look for the V symbol or the direct mention of China V. With the implementation of China VI, China V vehicles face some driving restrictions in certain cities, but overall, their usability and environmental performance remain good. Remember, regular maintenance of the catalytic converter helps keep emissions compliant.
