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Resource Document for Air Agencies Developing RACT SIP Revisions for Ozone National Ambient Air Quality Standards

This page contains a resource document providing a due diligence review framework for air agencies developing state implementation plan (SIP) revisions that address reasonably available control technology (RACT) requirements under ozone national ambient air quality standards (NAAQS).

  • Ozone NAAQS Resource Document: Due Diligence Review Framework For Air Agencies Developing RACT SIP Revisions (pdf) (257.22 KB, 12/19/2024)
    The purpose of this resource document is to provide air agencies with a recommended framework for assessing relevant information (“due diligence review”) in support of RACT SIP revisions developed under current and future ozone NAAQS. In addition to a review framework, this document includes references for examples of previously approved ozone RACT SIP revisions and EPA actions, as well as various resources that air agencies can research as part of due diligence reviews.

Ground-level Ozone Pollution

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Last updated on December 20, 2024
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