EPA proposes tightening primary ozone standards to range of 65-70 ppb; final rule by October 2015
Green Car Congress
NOVEMBER 26, 2014
Secondary standards set limits to protect public welfare, including protection against visibility impairment, damage to animals, crops, vegetation, and buildings. The Clean Air Act requires EPA to review the standards every five years by following a set of open, transparent steps and considering the advice of a panel of independent experts.
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