自2005年12月30日起,北京市在国内率先对轻型汽车(含汽油车、燃气汽车)以及重型汽车(柴油车和燃气汽车)实施国家第3阶段排放标准(即国Ⅲ标准,相当于欧Ⅲ),同时,拟在北京市销售并列入国家达标公告的新定型车型(包括全新产品及产品扩展与更改)都必须同步安装OBD系统,2005年12月30 Since December 30, 2005, Beijing has spearheaded the implementation of the national Phase 3 emission standard for light-duty vehicles (including gasoline vehicles, gas vehicles) and heavy-duty vehicles (diesel vehicles and gas vehicles) Europe Ⅲ). At the same time, the OBD system must be installed simultaneously with the new model cars to be sold in Beijing and included in the national standard announcement (including new product and product expansion and change). December 30, 2005