In which year did China's National IV motorcycle emission standard come into effect?
3 Answers
For motorcycles, China's National IV emission standard took effect in the production phase starting from July 1, 2018. Carburetor-equipped motorcycles or those failing to meet the National IV standard were prohibited from production. The sales restriction was implemented from July 1, 2019, after which non-compliant motorcycles could no longer be sold. Here are details about the National IV emission standard: Introduction: The National IV emission standard represents China's fourth-phase motor vehicle pollutant emission regulation. Major automotive pollutants include HC (Hydrocarbons), NOx (Nitrogen oxides), CO (Carbon monoxide), and PM (Particulate matter). Through technologies such as improved catalytic converter active layers, secondary air injection, and exhaust gas recirculation systems with cooling devices, this standard controls and reduces vehicle emissions below specified thresholds.
I remember that China IV motorcycles were officially implemented on July 1, 2019. This date is particularly memorable to me because many dealerships were clearing out China III models at that time. Friends who bought motorcycles before should take note - even if your bike was manufactured in 2018, it might still be China IV compliant, as some manufacturers upgraded ahead of schedule. Nowadays, it's basically impossible to find new China III motorcycles on the market. The China IV standard mainly added OBD diagnostic systems and electronic fuel injection technology, which are indeed beneficial for environmental protection.
I heard about the China IV emission standards from my car dealer friend back in 2018. They started adjusting their inventory back then. The official implementation happened in the summer of 2019, requiring all newly sold motorcycles nationwide to comply. Mechanics are most familiar with this change - they used to repair carburetors but now mostly work on fuel injection systems. When buying a used motorcycle, check the registration year - models from 2017 or earlier are mostly China III compliant.
