What is the National Emission Standard for Cars in 2006?

[JuliannaLee]

2006 cars could be either National II or National III emission standards, depending on the brand and model of the vehicle to accurately determine the exhaust emission standard. The automotive emission standard refers to the regulations on the content of harmful gases such as carbon monoxide, hydrocarbons, nitrogen oxides, particulate matter, and carbon smoke emitted from vehicle exhaust. Below are methods to check the national emission standard of a car: 1. Check the back of the car's environmental protection compliance label sticker, where the emission standard can be easily found. 2. The first page of the vehicle's certificate of conformity contains the emission standard, though it's not directly stated as National X but rather as a string of characters. 3. The vehicle's production year can provide a rough estimate of its emission standard. 4. Take the vehicle registration certificate to the local vehicle management office for inquiry, or a photocopy can also be used for the query.