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The Air Pollution Control Act of 1955
First federal air pollution legislation
Funded research for scope and sources of air pollution -
Clean Air Act of 1963
Authorized the development of a national program to address air pollution related environmental problems
Authorized research into techniques to minimize air pollution -
Air Quality Act of 1967
Authorized enforcement procedures for air pollution problems involving interstate transport of pollutants
Authorized expanded research activities -
Clean Air Act 1970
Authorized the establishment of National Ambient Air Quality Standards
Established requirements for State Implementation Plans to achieve the National Ambient Air Quality Standards
Authorized the establishment of New Source Performance Standards for new and modified stationary sources
Authorized the establishment of National Emission Standards for Hazardous Air Pollutants
Increased enforcement authority
Authorized requirements for control of motor vehicle emissions -
1977 Amendments to the Clean Air Act of 1970
Authorized provisions related to the Prevention of Significant Deterioration
Authorized provisions relating to areas which are non-attainment with respect to the National Ambient Air Quality Standards -
1990 Amendments to the Clean Air Act of 1970
Authorized programs for Acid Deposition Control
Authorized a program to control 189 toxic pollutants, including those previously regulated by the National Emission Standards for Hazardous Air Pollutants
Established permit program requirements
Expanded and modified provisions concerning the attainment of National Ambient Air Quality Standards
Expanded and modified enforcement authority
Established a program to phase out the use of chemicals that deplete the ozone layer