The Origin,Evolution and Establishment of Legal Regulation System of Mobile Source Pollution in the United States
The mid-20th century to the 1990s was a period when the legal regulation system for mobile source pollution in the United States grew from scratch,from its inception to its establishment.Since the 1950s,the United States has been conducting research on mobile source pollution and regulating it through legislation.Before the 1970s,economic and technological feasibility became the primary standards for mobile source pollution control legislation,but it made it difficult to achieve public health goals.With the rise of the environmental movement,the Clean Air Act Amendment of 1970 shifted its legislative focus to public health and well-being,which was strongly opposed by interest groups such as motor vehicle manufacturers,and the implementation deadline of motor vehicle emission standards was repeatedly postponed.In the context of the energy crisis,relaxing regulation and emphasizing the balance between environmental benefits and economic development became a practical choice for the 1977 Clean Air Act Amendment.Faced with the severe situation of mobile source pollution,under the influence of the concept of sustainable development,the 1990 Clean Air Act Amendment strengthened the regulation of mobile source pollution,focusing on comprehensive consideration of economic development,technological feasibility,environmental and public health factors.After the 1990s,there were no major legislative changes in Congress,indicating that the legal regulation system for mobile source pollution in the United States has been established.The evolution of the legal regulation system for mobile source pollution in the United States is also a game history between environmental protection and economic development.Balancing economic development and environmental protection largely determines the direction of legislation.
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