
As of 2021, motorcycles in China comply with the National IV emission standard. Over the 30-plus years since the reform and opening-up, China's annual motorcycle production has increased several times from over 3 million units to a peak of more than 28 million units. By the end of 2015, the number of motorcycles in use had reached 95.14 million. More than 200 cities in China have implemented motorcycle bans. Relevant information about vehicle emission standards is as follows: Introduction: Vehicle emission standards refer to regulations on the content of harmful gases emitted from vehicle exhaust, such as CO (carbon monoxide), HC+NOx (hydrocarbons and nitrogen oxides), and PM (particulate matter, soot). Implementation status: Starting from January 1, 2004, Beijing upgraded its vehicle emission standards from Euro I to Euro II, and by 2008, the Euro III standard was officially implemented.

As a seasoned professional working in a motorcycle repair shop for years, I'm well aware that the current motorcycle emission standard in China is mainly the China IV standard, which has been mandatorily enforced nationwide since July 2020. When repairing bikes, I often notice that new motorcycles' exhaust systems are equipped with more efficient catalytic converters, requiring more precise fuel injection and reducing emissions by nearly 30% compared to the previous China III standard. Customers frequently ask why the bikes are slightly more expensive, and I explain that it reduces pollutants like carbon monoxide and particulate matter, benefiting air quality in the long run, though it requires regular of the catalytic converter to prevent clogging and performance issues. There might be a transition to the stricter China V standard in the future, and our shop has already started technical training to prepare. I advise motorcycle owners to stay updated on policy changes and check the information labeled in their vehicle manuals. Overall, the China IV standard makes riding more environmentally friendly, and I recommend everyone to confirm compliance with the standard when purchasing new bikes.

From an environmental perspective, I observe the progress of China's National IV emission standards for motorcycles. After the government's promotion, pollutant emissions have significantly decreased, especially nitrogen oxides and hydrocarbons during urban riding. Having personally participated in environmental activities, I know that non-compliant motorcycles exacerbate smog. Therefore, I'm pleased with the strengthened standards and recommend owners check the National IV mark on their vehicle compliance certificates to ensure registration. The new standards have driven technological advancements, such as optimized combustion efficiency through electronic control units, though the slightly higher purchase cost is also a reality. The National V upgrade may come within a few years, and I will continue advocating for such standards because they benefit air quality and public health—a point unanimously agreed upon among fellow riders.

When I bought my first motorcycle, the seller said it had to meet the China IV standard to be road-. During the purchase, I carefully checked the manual and the certificate of conformity, which clearly stated compliance with emission requirements post-2020. After riding it for a few months, it felt smooth, the exhaust no longer smelled bad, and I didn’t notice any increase in fuel consumption. A friend mentioned that China IV focuses more on emission reduction, so maintenance for new bikes is simpler. However, since I only ride in the city for commuting, I haven’t worried much about emissions. If I were to change bikes, I’d prioritize China IV-compliant models—they’re hassle-free and eco-friendly, and most new motorcycles are set up this way now.

I have been closely following national regulations. Motorcycles currently comply with the China IV emission standards, which have been implemented since 2020. This requires vehicle manufacturers to strictly test exhaust emission indicators, with improved control levels compared to the older China III standards, such as mandating the installation of OBD systems to monitor faults. Under the influence of these policies, I regularly visit repair shops to check my vehicle's emission status, ensuring compliance to avoid fines. The standards enhance urban air protection, and I've heard that in the next year or two, there might be a transition to China V. I will keep track of news updates and make timely adjustments to ensure lawful riding.

Having ridden motorcycles for many years, I find that my current National IV standard vehicle shows little change in performance but significantly reduced exhaust emissions. According to the mechanic, the National IV requirements have optimized engine design to lower pollutant emissions, with this information clearly marked on new vehicle certificates. Daily riding maintains stable fuel consumption without encountering any malfunctions, and the overall experience is of a fresher environment. When purchasing or inspecting a vehicle, it's advisable to confirm the standard type via the license plate or manual. While future trends may impose stricter standards, the current National IV remains a reliable choice.