How much longer can National IV vehicles be driven?

[MacSawyer]

At least five years without traffic restrictions. Additional information: Before implementing new policies, there will always be a grace period. After the introduction of National VI standards, it will take at least about 3 years for traffic restriction measures to be introduced. According to convention, these measures should target National III vehicles, so National IV vehicles can still be driven for several more years without issues. National IV and National V vehicles account for nearly 70% of the total vehicle population nationwide. National VI vehicles alone cannot meet the current demand, so the government will not introduce traffic restriction measures for National IV vehicles in the short term. By the time the government takes mandatory measures against National V and IV vehicles, these vehicles will have almost reached their service life. The average lifespan of a vehicle is only about ten years, so after ten years, these vehicles should be replaced.