Summary
EPA is making an interim final determination to defer the imposition of offset and highway sanctions in the Los Angeles-South Coast air basin (“South Coast”) based on a proposed approval of revisions to the South Coast portion of the California State Implementation Plan (SIP) published elsewhere in the Federal Register. The revisions concern Clean Air Act (CAA) reasonably available control measures/reasonably available control technology (RACM/RACT) and reasonable further progress (RFP) requirements for the 2006 24-hour fine particulate matter (PM2.5) national ambient air quality standards (NAAQS) in the South Coast.
Action
Interim final rule.
Dates
This interim final determination is effective on October 10, 2017. However, comments will be accepted until November 9, 2017.
For Further Information Contact
Wienke Tax (tax.wienke@epa.gov), Air Planning Office (AIR-2), U.S. Environmental Protection Agency, Region IX, (415) 947-4192.