Severe Area Submission Requirements for the 2008 Ozone NAAQS; California; Eastern Kern Nonattainment Area

Under the Clean Air Act, the Environmental Protection Agency (EPA) is establishing a schedule for the the California Air Resources Board (CARB) to submit revisions to the state implementation plan (SIP) addressing "Severe" area requirements for the 2008 8-hour ozone national ambient air quality standards (NAAQS) for the Eastern Kern nonattainment area ("Eastern Kern"). CARB will be required to submit SIP revisions addressing Severe area requirements for Eastern Kern, including revisions to new source review (NSR) rules, no later than January 7, 2023. Submittal of any necessary revisions to the title V rules that apply in Eastern Kern are due no later than January 7, 2022. Lastly, the EPA is establishing a deadline for implementation of new reasonably available control technology (RACT) rules as expeditiously as practicable but no later than July 7, 2024.