Approval of California Air Plan Revisions, Imperial County Air Pollution Control District

The Environmental Protection Agency (EPA) is taking final action to approve a revision to the Imperial County Air Pollution Control District (ICAPCD) portion of the California State Implementation Plan (SIP). This revision concerns the District's reasonably available control technology (RACT) requirements under the 1997 8-hour National Ambient Air Quality Standards (NAAQS) for ozone. This submitted SIP revision also contains ICAPCD's negative declarations for certain volatile organic compound (VOC) source categories. We are approving this document under the Clean Air Act (CAA or the Act).