China VI vehicles do not have special markings. Generally, the information can be found on the vehicle acceptance sheet, which includes details such as the model, color, emission standard, engine number, and chassis number. The China VI identifier is 'Ⅵ'. The symbols for China 1 to China 6 standards are I, II, III, IV, V, and VI, respectively. On July 1, 2000, China first introduced the China 1 emission standard. Following the European emission standards and aligning with international norms, the symbols from China 1 to China 6 adopted Roman numerals. New emission standards have been introduced every few years since then. Below are methods to check a vehicle's emission standard: 1. Vehicle Conformity Certificate: When purchasing a car, always request relevant documents and certificates from the salesperson. The Vehicle Conformity Certificate clearly states the vehicle's emission standard. Although it may not explicitly mention whether the vehicle is China 5 or China 6, the emission standard can be clearly determined from this document. 2. Environmental Information Vehicle List: The Environmental Information Vehicle List details the vehicle's environmental impact, including its exhaust emission standard. It directly and clearly indicates the vehicle's emission stage—whether it is China 5 or China 6. By reviewing this list, the vehicle's exhaust emission stage can be easily identified. 3. Vehicle Qualification Certificate: The vehicle's emission standard is clearly stated on the relevant qualification certificate.
