What is China IV Vehicle Emission Standard?
2 Answers
China IV Vehicle Emission Standard refers to China's National Phase 4 Emission Standard, where 'IV' is the Roman numeral for four. Hence, China IV is the fourth-stage national emission standard. The full name of 'China IV Standard' is: 'China National Phase IV Motor Vehicle Emission Standard,' which is equivalent to Europe's 'Euro IV Standard.' Below is extended information about the China IV Standard: 1. Compared to 'China III Standard,' the 'China IV Standard' imposes stricter controls on vehicle emissions, requiring a further reduction of 30% to 50% in pollutants beyond the 'China III Standard' to achieve compliance. This standard, formally known as 'China National Phase IV Motor Vehicle Emission Standard,' regulates environmental emission indicators for vehicles, including HC (Hydrocarbons), NOx (Nitrogen Oxides), CO (Carbon Monoxide), PM (Particulate Matter), among others. 2. Through these regulations or standards, it is possible to better control and reduce vehicle emissions that exceed specified limits. 3. The standard demands emission controls equivalent to the 'Euro IV Standard,' further reducing related emission indicators by 30% to 50% compared to 'China III,' thereby better controlling vehicle emissions and benefiting the ecological environment.
I've researched a lot about automotive standards before. The National Standard IV refers to China's fourth-stage emission standard, commonly known as China IV standard. Implemented gradually around 2011 in China, it sets control requirements for vehicle exhaust emissions, primarily limiting harmful substances like nitrogen oxides and particulate matter. Compared to the previous China III standard, China IV is more stringent, equivalent to Europe's Euro IV standard. Many imported or joint-venture vehicles had to comply with this standard to be sold in China. Currently, many older vehicles on the market still meet China IV standard, but with the introduction of China VI, the new standard has replaced the old one. I remember when the standard changed, some automakers had to upgrade engines and catalytic converters, which indeed helped environmental protection by reducing smog and other pollutants. Checking your vehicle's emission standard is quite simple - just look at the vehicle compliance certificate or environmental label.
