Light-duty Vehicles Emissions Standards

Last updated: 8 February 2023

In 2016, China released the Stage 6 Limits and Measurement Methods for Emissions from Light-Duty Vehicles (GB18352.6—2016). This standard applies to light-duty vehicles (M1, M2, and N1 categories up to 3,500 kg of maximum mass) powered primarily by gasoline or diesel. 
The Stage 6 standard contains two sets of fuel-neutral emission limits — China 6a (set to be effective from July 2020, implementation delayed to January 2021) and 6b (effective from July 2023) — for air and climate pollutants, including carbon monoxide (CO), total hydrocarbons (THC), nitrogen oxides (NOX), particulate matter (PM), particle number (PN), and nitrous oxide (N2O). The Stage 6 standard shifts from the New European Driving Cycle (NEDC) to World Harmonized Light Vehicle Test Cycle (WLTC) and World Harmonized Light Vehicle Test Procedures (WLTP).

Want to know more about this policy ? Learn more