| http://www.w3.org/ns/prov#value | - urces.GAO noted that: (1) the large industrial complexes operated by the petrochemical and refinery, chemical manufacturing, and electric power industries are prime examples of sources that are regulated under multiple programs of the act; (2) for example, emissions of nitrogen oxide from electric power plants are controlled under six programs, including those for controlling acid rain, ground-lev
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