论文部分内容阅读
美国、欧洲和日本的汽车排放法规是当今世界上的三个主要法规体系。世界上其他国家也都是在不同程度上采用这些法规和标准,尤以采用欧洲、美国法规的比较多美国是当今世界上控制汽车排放最严格的国家,有多种不同的汽车排放法规和标准,但主要分为联邦环保署(EPA)排放法规和加利福尼亚州空气资源局(CARB)排放法规两大类,一般以加州制定的标准最为严格,而且往往要早于联邦标准1～2年。由于美国法规的先进性,许多控制汽车排放较早
The automobile emission regulations of the United States, Europe and Japan are the three major laws and regulations in today’s world. Other countries in the world also apply these laws and standards to varying degrees, especially in Europe and the United States. The United States has the most stringent vehicle emissions control in the world and has a variety of different vehicle emission regulations and standards But is mainly divided into two major categories, the Federal Environmental Protection Agency’s (EPA) Emissions Regulations and the California Air Resources Board’s (CARB’s) Emissions Regulations, which are generally the most stringent standards set by the State of California and often take up to one to two years before the federal standards. Due to the advanced nature of US regulations, many control car emissions earlier