How to distinguish between National IV and National V?
2 Answers
Methods to distinguish between National IV and National V are as follows: 1. Check the fuel consumption label on the car; 2. Look at the vehicle's nameplate, find the combination of numbers and letters in the vehicle model, locate the engine model, then log in to the Motor Vehicle Environmental Protection Website, input the vehicle model and engine model to query. 3. Extension: Compared to National IV, the National V standard reduces nitrogen oxide emissions by 25% for light vehicles and 43% for heavy vehicles; the biggest difference between National V and National IV is the stricter emission standards for heavy vehicles.
As someone who frequently helps friends with car purchases, I've found the most practical way to distinguish between China IV and China V emission standards is to first check the vehicle's registration year. The China V standard was basically implemented nationwide by 2017, so most vehicles before that are China IV. For models after 2017, there's an 80% chance they're China V. If unsure, check the vehicle conformity certificate - the emission standard is clearly stated in that document. Although environmental stickers have been discontinued, residual stickers on older vehicles may still show 'China IV' or 'China V' markings. If you can't find any documentation, simply log onto the Motor Vehicle Environmental Protection Website and search by VIN - this will reveal all emission details, including restricted areas for used car transfers.
