What is the Chinese equivalent of Euro 4 emission standards?

[DiIsabela]

Euro 4 emission standards are equivalent to China's National 4 emission standards. Below is relevant information about Euro 4 emissions: 1. In terms of emission standards, Euro 4 is similar to China's National 4, but Euro 4 is stricter than National 4. It can be said that Euro 4 is more advanced than National 4. Given current technology, emission standards are unlikely to be upgraded within the next decade or so. Upgrading emission standards must consider not only technology but, more importantly, cost factors. 2. China's National 3 and National 4 emission standards for light-duty vehicles have identical pollutant emission limits to Euro 3 and Euro 4 standards. The Euro IV standard refers to the Euro IV emission standard, which was implemented at the end of 2005 as an important standard for automotive exhaust emissions and is currently enforced in most countries. This standard requires that diesel passenger cars emit no more than 250 milligrams of nitrogen oxides per kilometer; vans and SUVs must not exceed 390 milligrams of nitrogen oxides per kilometer.