Answer:
The Clean Air Act does cover automobile emissions
Explanation:
United States enacted a law known as the federal Clean Air Act to control the air pollutants and improve the air quality. It was passes the federal government in the year 1963. It is mainly designed to regulate and control the air pollution across the states.
It worked on controlling the oxides of Nitrogen as well as the sulfur dioxide emission. It also includes the emissions from the automobiles.
Hence in the context, Lulu decides to buy a new car for ensuring better automobile emission under the Clean Air act of the United States federal government.