When was China IV diesel implemented?
3 Answers
Diesel vehicles are divided into light-duty diesel vehicles and heavy-duty diesel vehicles, with different implementation times for each type. The specific times are as follows: 1. Light-duty diesel vehicles: On July 1, 2013, the China IV emission standard was implemented nationwide. 2. Heavy-duty diesel vehicles: On January 1, 2012, the China IV emission standard was implemented nationwide. Additional information is as follows: 1. Light-duty vehicles refer to those under 3.5 tons, while medium-duty vehicles refer to those over 3.5 tons. Private cars, which are light-duty gasoline vehicles, have been subject to the China IV emission standard nationwide since July 1, 2011. 2. The China IV standard, officially known as the National Phase IV Motor Vehicle Pollutant Emission Standard, was in effect until June 13, 2019, when China implemented the China V emission standard. The reason for frequent updates to emission standards is that as the number of vehicles increases, the environmental pollution caused by vehicle exhaust has become increasingly severe. 3. The main pollutants from vehicle emissions include HC (hydrocarbons), NOx (nitrogen oxides), CO (carbon monoxide), and PM (particulate matter). The national emission standards are primarily based on the European Union standards, with some adaptive modifications made to suit local conditions.
I remember the implementation timeline of China's National IV diesel emission standards very clearly. As a seasoned driver, I always pay close attention to such policies in my daily driving. For heavy-duty diesel vehicles, new models had to comply with National IV standards starting from July 2013, while light-duty vehicles weren't fully required to meet the standards until January 2015. Back when I drove a National III diesel vehicle, black exhaust smoke was a common sight, which significantly impacted health. After National IV, new vehicles became much cleaner in emissions and maintenance costs stabilized. However, National III vehicles could still operate for some time, and many people like me waited until the new standards became mandatory before upgrading. These standards were later surpassed by National V and VI, but they played a significant role in reducing air pollution, including PM2.5, making cities feel a bit less dusty.
As an environmentally conscious car owner, I particularly enjoy discussing the changes brought by the China IV diesel standard. It was first implemented for new heavy-duty diesel vehicles in 2013 and fully covered light-duty vehicles by 2015, directly reducing nitrogen oxide and particulate matter emissions. In the past, diesel vehicle exhaust often caused hazy days in Northeast China, but the situation has improved significantly now; vehicle designs have also become more energy-efficient. I remember when buying a car in 2015, I had to choose a China IV compliant model to avoid future hassles. The policy also promoted fuel quality upgrades, which isn't just about vehicles but also benefits respiratory health. Future standards like China V and China VI followed in 2018 and 2020, but China IV was the starting point that helped us step into the era of green driving.
