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require a state-run permit program for the operation of major sources of air pollutants; implement the Montreal Protocol to phase out most ozone-depleting chemicals; sunflower and deer pattern full printing christmas ugly sweater  and update the enforcement provisions so that they parallel those in other pollution control acts, including authority for EPA to assess administrative penalties. The federal role was strengthened in subsequent amendments, notably the Clean Air Act Amendments of 1970, 1977, and 1990. The 1970 amendments established the procedures under which EPA sets national standards for ambient air quality, required a 90% reduction in emissions from new automobiles by 1975, established a program to require the best available control technology at major new sources of air pollution, established a program to regulate air toxics, and greatly strengthened federal enforcement authority.

The 1977 amendments adjusted the auto emission standards, extended deadlines for the attainment of air quality standards, and added the Prevention of Significant Deterioration program to protect air cleaner than national standards. You’ll receive updates and urgent action alerts from UCS. You can unsubscribe at any time. Msg & data rates may apply. Text STOP to opt out. No purchase necessary. Terms and conditions. Which 20 countries emit the most carbon dioxide? This table shows data compiled by the Energy Information Agency, which estimates carbon dioxide emissions from all sources of fossil fuel burning and consumption. extreme weather events that can lead to deaths, injuries, and stress-related illnesses. Clean Air Act regulations have spurred industries to develop and adopt cutting-edge solutions to reduce pollution from power plants, factories, and cars, and, in the process, create new jobs and strengthen our economy. reduce the lead content in gasoline, which has cut lead air pollution by 92 percent since 1980.