What is the emission standard for 2009 sedans?

[LeRiver]

2009 sedans comply with either China III or China IV emission standards. The specific standard depends on the vehicle model. Relevant information is as follows: 1. Exhaust gases: Automobile emission standards regulate the content of harmful gases emitted from vehicle exhaust, including CO (carbon monoxide), HC+NOx (hydrocarbons and nitrogen oxides), and PM (particulate matter, soot). 2. Stages: Automobile emission standards are divided into five stages. Currently, China VI is in effect. According to the China VI emission standard, light gasoline vehicles will see approximately 50% reduction in carbon monoxide, hydrocarbons, non-methane total hydrocarbons, and nitrogen oxide emissions compared to China V, with particulate matter emissions reduced by about 40%. For heavy-duty diesel vehicles, nitrogen oxides and particulate matter emissions will be reduced by more than 60% compared to China V.