US EPA proposed Clean Air Act endangerment finding targets aviation fuel

Read the full story at the National Law Review.

On October 17, 2022, the United States Environmental Protection Agency issued a proposed finding that lead air pollution may reasonably be anticipated to endanger the public health and welfare within the meaning of Section 231(a) of the Clean Air Act, 42 U.S.C. § 7571, and further that engine emissions of lead from aircraft contribute to such pollution. This is a two-pronged “endangerment” and “cause or contribution” finding which addresses both elements provided under Section 231 which provides that EPA shall “issue proposed emission standards applicable to the emission of any air pollutant from any class or classes of aircraft engines which in his judgment causes, or contributes to, air pollution which may reasonably be anticipated to endanger public health or welfare.” An endangerment and contribution finding is therefore the first step in the process of regulating lead emissions from aviation fuels. EPA often, but not always, combines these endangerment findings with the substantive regulations and emissions limitations but has not done so here.    

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