New guidance on Ozone and Fine Particulate modeling – Update from Hiser Joy

Posted by Eric L. Hiser, 10 min

On July 29, 2022, EPA’s Air Quality Assessment Division and Air Quality Policy Division jointly issued new guidance, Guidance for Ozone and Fine Particulate Matter Permit Modeling, addressing how in final form to state, local and tribal permitting authorities and the public. The guidance sets forth “EPA’s recommendations for how a stationary source seeking” a PSD permit “may demonstrate that it will not cause or contribute to a violation” of the Ozone NAAQS, the PM2.5 NAA…

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