How to Check Whether a Car Meets China 5 or China 6 Emission Standards?
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How to check whether a car meets China 5 or China 6 emission standards: 1. Check the vehicle conformity certificate; 2. Check the environmental protection information accompanying the vehicle list; 3. Check the car production date. China 5 and China 6 refer to the fifth and sixth stages of national motor vehicle pollutant emission standards, respectively. Their purpose is to prevent pollution of the environment by exhaust gases from compression-ignition and gas-fueled spark-ignition engine vehicles, protect the ecological environment, and safeguard human health. The differences between China 5 and China 6 are: 1. Different nitrogen oxide emission standards: China 5 nitrogen oxide emission standard is 0.18 grams per kilometer; China 6 nitrogen oxide emission standard is 0.16 grams per kilometer. 2. Different particulate matter concentration emission standards: China 5 particulate matter concentration emission standard is 0.0045 grams per kilometer; China 6 particulate matter concentration emission standard is 0.022 grams per kilometer.
The most straightforward way to check is to refer to your vehicle's accompanying documents. The emission standard is clearly stated on the environmental information sheet or certificate of conformity that came with the car when you purchased it. If you can't find the paperwork, you can locate the VIN (Vehicle Identification Number) – that alphanumeric code at the bottom left of the windshield – and enter it into the 'Motor Vehicle Environmental Protection Network' official account on WeChat to check. Some cars also have a small yellow or green label on the front windshield; a quick glance at the label number can help you identify the standard. Implementation times vary by region; for example, major cities like Beijing adopted China VI standards much earlier. When buying a car, you can ask the 4S store which emission standard it meets. Understanding whether it's China V or China VI is crucial, especially for future resale or adjustments to traffic restriction policies, to avoid complications later on.