More Information on Major NSR Permitting

It is important to note that it is possible to trigger nonattainment and PSD reviews for the same pollutant.

For example:

Nitrogen oxides (NOx) are an ozone precursor and evaluated under nonattainment rules. A NAAQS also exists for NOx; therefore, NOx may also need evaluation for PSD - even in ozone nonattainment areas.

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