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That statute is the product of multiple acts of Congress, one of which—the 1963 act—was actually titled the Clean Air Act, and another of which—the 1970 act—is most often referred to as such. [ 2 ] [ 3 ] In the U.S. Code, the statute itself is divided into subchapters, and the section numbers are not clearly related to the subchapters.
The Clean Air Act amendments of 1970 (CAA) and the Federal Water Pollution Control Act amendments of 1972 (Clean Water Act) moved environmental concerns in a new direction. The new CAA standards that were to be promulgated were unattainable with existing technology—they were technology-forcing.
The United States Congress passed the Clean Air Act in 1963 to legislate the reduction of smog and atmospheric pollution in general. That legislation has subsequently been amended and extended in 1966, 1970, 1977 and 1990. In 1968 AP 42 Compilation of Air Pollutant Emission Factors. Numerous state and local governments have enacted similar ...
The law was initially enacted as the Air Pollution Control Act of 1955. Amendments in 1967 and 1970 (the framework for today's U.S. Clean Air Act) imposed national air quality requirements, and placed administrative responsibility with the newly created Environmental Protection Agency. Major amendments followed in 1977 and 1990.
New Source Performance Standards (NSPS) are pollution control standards issued by the United States Environmental Protection Agency (EPA). The term is used in the Clean Air Act Extension of 1970 (CAA) to refer to air pollution emission standards, and in the Clean Water Act (CWA) referring to standards for water pollution discharges of industrial wastewater to surface waters.
The next amendment came in 1962 and basically enforced the principle provisions of the original act. In addition, this amendment also called for research to be done by the Surgeon General. In 1967, the Air Quality Act of 1967 was passed. In 1967, the Air Quality Act was enacted in order to expand federal government activities.
The Act did not precisely define what constituted a "source" of air pollution. The Environmental Protection Agency (EPA) initially defined "source" to cover essentially any significant change or addition to a plant or factory. In 1981, the EPA changed its definition to mean only an entire plant or factory.
The Clean Air Act of 1963 (CAA) was passed as an extension of the Air Pollution Control Act of 1955, encouraging the federal government via the United States Public Health Service under the then-Department of Health, Education, and Welfare (HEW) to encourage research and development towards reducing pollution and working with states to establish their own emission reduction programs.