Bill works in a company that owns and manages oil refineries in US waters. These oil refineries emit waste material into the air during the processing stage. Which Act would regulate these emissions?

clean air act

Explanation:

In simple words, The 1963 Clean Air Act is a federal statute of the United States intended to regulate air pollution at a regional level. That is some of the earliest and highly prominent new environmental legislation throughout the United States, and that some of the world's most detailed air pollution rules.

It is applied majorly to the facilities that are involved in petroleum or extraction industry as the machinery involved in such industries highly pollutes the air.