China National I Emission Standard?
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China National I standard vehicles refer to motor vehicles produced under the first phase of the national emission standards implemented, abbreviated as National I standard vehicles. In other words, most motor vehicles purchased between January 1, 1999, and December 31, 2003, fall within the scope of National I vehicles. From January 1, 1999, to December 31, 2003, China referenced the European Emission Standard I, taking passenger cars with a designed seating capacity of no more than 6 people (including the driver) and a maximum total mass not exceeding 2.5 tons as an example. During this period, the emission standard limits that had to be met were: carbon monoxide must not exceed 3.16g/km; hydrocarbons must not exceed 1.13g/km; for diesel vehicles, particulate matter standards must not exceed 0.18g/km; and the durability requirement was 50,000 km. Additional information is as follows: Other phases of automobile emission standards: 1. Phase II: Between 1989 and 1993, China successively issued two limit standards and two test method standards based on driving cycles. By then, China had established a relatively complete system of automobile exhaust emission standards. 2. Phase III: Starting in 1999, Beijing implemented the local regulation DB11/105-1998, and from 2000, the national standard GB14961-1999 "Limits and Measurement Methods for Emissions from Vehicles" was implemented nationwide, bringing China's automobile exhaust emission standards up to the level of the early 1990s in foreign countries. 3. Phase IV: In 2008, Beijing implemented the "China National IV Emission Standard for Motor Vehicles" (referred to as "National IV") for all newly added motor vehicles in the city. The supply of National IV standard automotive fuel began citywide on January 1, 2008.