从今年7月1日起,柴油车、重型汽油车在上海将执行国Ⅳ排放标准。日前,上海市环保局和上海市公安局下达了《柴油车和重型汽油车实施国家第四阶段机动车排放标准(国Ⅳ标准)的通知》(以下简称通知),称自2013年7月1日起,所有在上海市注册登记机动车号牌(含外省市转入)的柴油车和重型汽油车,其“大气污染物排放 Starting from July 1 this year, diesel vehicles and heavy-duty gasoline vehicles will implement state IV emission standards in Shanghai. Recently, Shanghai Municipal Environmental Protection Bureau and Shanghai Public Security Bureau issued the Notice on Implementation of National Fourth Stage Motor Vehicle Emission Standards (State IV Standard) for Diesel Vehicles and Heavy-Duty Gasoline Vehicles (hereinafter referred to as the Circular), claiming that since July 1, 2013 Day, all registered in Shanghai motor vehicle license plate (including provinces and cities into the) diesel vehicles and heavy-duty gasoline vehicles, the ”air pollutant emissions