What is the symbol for China National VI vehicle emission standard?

[OAlexander]

The symbol for China National VI standard is 'VI'; China National I standard is 'I'; China National II standard is 'II'; China National III standard is 'III'; China National IV standard is 'IV'; China National V standard is 'V'. On July 1, 2000, China first introduced the National I emission standard. As it was based on European emission standards and aligned with international standards, Roman numerals were also used in the symbols from National I to National VI. New emission standards have been introduced every few years since then. The National VI symbol is located on the vehicle nameplate, under the passenger seat B-pillar: 1. Check the vehicle's environmental protection label: The simplest way to identify the National VI symbol is to look at the vehicle's environmental protection label, where the 'Emission Standard' section will indicate the national standard level; 2. The 'National VI Standard' is divided into two phases: 'National VI a' and 'National VI b', planned to be uniformly implemented nationwide on July 1, 2020, and July 1, 2023, respectively. However, the National VI standard is extremely stringent; its requirements are far higher than the European Euro 6 emission standards and the U.S. Tier 3 standards, making it one of the strictest emission standards globally. The implementation period for the National VI standard will also be longer.