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21 nov 1967 ano - Air Quality Act

Descrição:

-increased government control over air pollution

-regional system to combat air pollution - difficult to enforce

-followed by Clean Air Act in 1970 - federal standards to control pollution

Adicionado na linha do tempo:

IB History: US domestic policy

ByRoella Smith
1 mai 2018

Data:

21 nov 1967 ano
Agora
~ 56 years ago
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