When did the China IV emission standard come into effect?

[DelGrace]

China IV standard was first implemented in 2010, and nationwide implementation was completed in 2013. Here is some information about the China IV emission standard: 1. Introduction: China IV emission standard is the fourth phase national standard for motor vehicle pollutant emissions. 2. Vehicle emission pollutants: mainly include HC (hydrocarbons), NOx (nitrogen oxides), CO (carbon monoxide), PM (particulate matter), etc. 3. Purpose: Through the application of technologies such as improved catalytic converter active layers, secondary air injection, and exhaust gas recirculation systems with cooling devices, the standard aims to control and reduce vehicle emissions to below specified limits.

[AustinMarie]

I remember the China IV emission standards were fully implemented nationwide on July 1, 2011, when I bought a new car, and it left a deep impression on me. The previous China III standards caused severe pollution, with heavy urban smog. In 2010, some cities piloted the new standards first, and once China IV was introduced, strict emission reduction measures were enforced. It mainly targeted gasoline vehicles, forcing automakers to install high-efficiency catalytic converters, which cut tailpipe pollutants like carbon monoxide and particulate matter by more than half, significantly improving air quality. When I drove a China III vehicle, annual inspections were often a hassle, but after China IV was implemented, inspections became easier. However, the resale value of China III used cars plummeted, increasing the cost for owners to switch vehicles. Looking back now, these standards truly helped the environment. Although the technology is somewhat outdated, the subsequent China V and China VI standards have followed with even stricter requirements. I recommend checking the emission standards when buying a car—it saves money and is better for the environment.

[HenryLynn]

I've been concerned about environmental protection for many years. The China IV emission standard was officially implemented in 2011, making significant progress in pollution control. After China's air quality deteriorated, it was fully implemented nationwide on July 1st, targeting harmful emissions such as nitrogen oxides from light-duty vehicles, requiring all new vehicles to comply. I saw data showing a 20% reduction in pollutants, with urban skies becoming much bluer and many health risks reduced. Technological upgrades made exhaust filtration more efficient, but initially, automakers faced higher costs leading to slight price increases. Now the China VI standard has arrived, but China IV laid the foundation for promoting electric vehicle R&D, reminding everyone to support green transportation for long-term ecological benefits. Regular maintenance of the exhaust system can also extend vehicle life and avoid annual inspection hassles.

[RiverRose]

The China IV emission standard was implemented in 2011. I remember that year, new car launches were mandatory to comply with the updated standard. My car enthusiast friend mentioned it significantly reduces tailpipe pollution, with much stricter controls and lower pollutant levels compared to China III, benefiting gasoline car owners notably. After a pilot in 2010, its nationwide rollout saw an active car market—new car registrations went smoothly, but used car prices were chaotic, with pre-China III models depreciating rapidly, affecting resale. Improved emission control technologies made vehicles cleaner and more eco-friendly, though maintenance parts became slightly more expensive. While the standard has now upgraded to China VI, China IV vehicles are still road-legal. It's advisable to check the emission level when buying a car to match your needs, ensuring convenience and sustainability.