What is the emission standard for cars in 2004?

[DiAlivia]

2004 cars comply with the China II emission standard. You can check your vehicle's emission standard through the following methods: via the environmental protection label issued during vehicle inspection, by inquiring at the vehicle management office, or by checking the vehicle model directory on the Motor Vehicle Environmental Protection Network. The China II emission standard is the abbreviation for the second phase of national emission standards, equivalent to the Euro II emission standard, meaning the tailpipe pollutant levels match those of Euro II. Compared to the first phase national emission standard (China I), the China II standard reduces single-vehicle carbon monoxide emissions by 30.4%, and hydrocarbon and nitrogen oxide emissions by 55.8%.