After more than a decade, EPA announced on March 12, 2008, that the NAAQS for primary and secondary ground-level ozone would be reduced to 0.075 parts per million (ppm). Read more about the new standards and the new regions projected to be designated as nonattainment.
Learn more about each candidate's energy and environmental policies with our useful side-by-side comparison table.
On May 16, 2008, nearly 11 years after finalizing the original PM2.5 NAAQS, EPA published to the Federal Register the much-anticipated PM2.5 implementation rule for NSR permitting. Read about the highlights from EPA's finalized rule, as well as EPA's plan for facilities to transition from the old 1997 transitional guidance to the new rule.
Read about the complex matrix of two New Source Performance Standards (NSPS) and one Maximum Achievable Control Technology (MACT) standard to regulate exhaust gases from stationary reciprocating internal combustion engines (RICE).
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