2020-12690: Approval and Promulgation of Implementation Plans; Designation of Areas for Air Quality Planning Purposes; California; South Coast Moderate Area Plan and Reclassification as Serious Nonattainment for the 2012 PM2.5 NAAQS
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The Environmental Protection Agency (EPA) is proposing to approve or conditionally approve portions of a state implementation plan (SIP) revision submitted by California to address Clean Air Act (CAA or "Act") requirements for the 2006 and 2012 fine particulate matter (PM<INF>2.5</INF>) national ambient air quality standards (NAAQS or "standards") in the Los Angeles-South Coast Air Basin ("South Coast") PM<INF>2.5</INF> nonattainment area. Specifically, the EPA is proposing to approve all but the contingency measure element of the submitted SIP revision as meeting all applicable Moderate area requirements for the 2012 annual PM<INF>2.5</INF> NAAQS, and to conditionally approve the contingency measure element as meeting both the Moderate area contingency measure requirement for the 2012 annual PM<INF>2.5</INF> NAAQS and the Serious area contingency measure requirement for the 2006 24-hour PM<INF>2.5</INF> NAAQS. In addition, the EPA is proposing to approve 2019 and 2022 motor vehicle emissions budgets for use in transportation conformity analyses for the 2012 annual PM<INF>2.5</INF> NAAQS. The EPA is also proposing to reclassify the South Coast PM<INF>2.5</INF> nonattainment area, including reservation areas of Indian country and any other area of Indian country within it where the EPA or a tribe has demonstrated that the tribe has jurisdiction, as a Serious nonattainment area for the 2012 annual PM<INF>2.5</INF> NAAQS based on the EPA's determination that the area cannot practicably attain the standard by the applicable Moderate area attainment date of December 31, 2021. Upon final reclassification of the South Coast as a Serious area for this NAAQS, California will be required to submit a Serious area plan for the area that includes a demonstration of attainment by the applicable Serious area attainment date, which is no later than December 31, 2025, or by the most expeditious alternative date practicable, in accordance with the requirements of part D of title I of the CAA.
The agency’s own summary, as published.
What this changes
Amends 2 parts of the Code of Federal Regulations — the standing rules this notice rewrites.
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