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1 Jan 1970 Jahr - Clean Air Act expanded (established in '63; revised in '65, '70, ''77, '90)

Beschreibung:

The Clean Air Act is a United States federal law designed to control air pollution on a national level. It is one of the United States' first and most influential modern environmental laws, and one of the most comprehensive air quality laws in the world

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29 Aug 2017
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Datum:

1 Jan 1970 Jahr
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~ 55 years ago
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