Summary

EPA is approving portions of a state implementation plan (SIP) revision submitted by California to address Clean Air Act (CAA or “Act”) requirements for the 2006 24-hour fine particulate matter (PM_2.5) national ambient air quality standards (NAAQS or “standards”) in the Los Angeles-South Coast air basin (South Coast) Serious PM_2.5 nonattainment area. The EPA is also approving 2017 and 2019 motor vehicle emissions budgets for transportation conformity purposes and inter-pollutant trading ratios for use in transportation conformity analyses.

Dates

This final rule is effective on March 14, 2019.

Addresses

EPA has established a docket for this action under Docket ID No. EPA-R09-OAR-2017-0490. All documents in the docket are listed on the www.regulations.gov website. Although listed in the index, some information is not publicly available, e.g., Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, is not placed on the internet and will be publicly available only in hard copy form. Publicly available docket materials are available through www.regulations.gov, or please contact the person identified in the FOR FURTHER INFORMATION CONTACT section for additional availability information.

For Further Information Contact

Ginger Vagenas (vagenas.ginger@epa.gov), EPA Region IX, 415-972-3964