What are the symbols for China's National Emission Standards from Stage I to Stage V?
1 Answers
From Stage I to Stage V, the emission standard symbols are I, II, III, IV, and V respectively. On July 1, 2000, China first introduced the National Stage I Emission Standard. Since it was based on European emission standards and aligned with international standards, Roman numerals were also adopted for the symbols from Stage I to Stage VI. Currently, China has begun implementing the National Stage VI standard. The Stage VI standard is divided into two phases: "Stage VI a" and "Stage VI b," which were uniformly implemented nationwide on July 1, 2020, and July 1, 2023, respectively. The Stage VI standard is extremely stringent, far exceeding Europe's Stage VI emission standards and the U.S. Tier 3 standard, making it one of the strictest emission standards globally. As a result, the implementation period for the Stage VI standard will also be longer. Methods to check a vehicle's emission standard are as follows: Check the vehicle's factory certificate: For new vehicles, you can check the vehicle's factory certificate or the vehicle conformity certificate. Log in to the public query platform on the environmental protection website: Log in to the public query platform on the Motor Vehicle Environmental Protection Website to verify. You will need to enter the vehicle's VIN (Vehicle Identification Number) and the last six digits of the engine number.
