Contact EPA Pacific Southwest Air Program
Pacific Southwest, Region 9
Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations
Air Actions, California
Additional Areas
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- December 2016: (Final rulemaking) Determination of Attainment of the 2008 Ozone National Ambient Air Quality Standards; Eastern San Luis Obispo, California
- December 2016: Direct Final and Proposed Determination of Attainment of the 2008 Ozone National Ambient Air Quality Standards; Mariposa County
- September 2016: (Proposed rulemaking) Determination of Attainment of the 2008 Ozone National Ambient Air Quality Standards; Eastern San Luis Obispo, California
- August 2013: Final Rule Determining Attainment for the 2006 24-Hour PM2.5 National Ambient Air Quality Standard in the Chico Nonattainment Area
December 2016: (Final rulemaking) Determination of Attainment of the 2008 Ozone National Ambient Air Quality Standards; Eastern San Luis Obispo, California
December 8, 2016: The Environmental Protection Agency (EPA) is taking final action to determine that the San Luis Obispo County (Eastern San Luis Obispo) ozone nonattainment area (NAA) has attained the 2008 ozone National Ambient Air Quality Standards by the applicable attainment date of July 20, 2016. We received no comments on our proposed action for the same determination.
- Federal Register: Final Rule (published December 21, 2016 )
- Fact Sheet (PDF) (1 pp, 139 K)
Contact Information
Nancy Levin (levin.nancy@epa.gov)
Air Planning Office, US EPA, Region 9
(415) 972-3848
Anna Mebust (mebust.anna@epa.gov)
Air Quality Analysis Office, US EPA, Region 9
(415) 972-3265
December 2016: Direct Final and Proposed Determination of Attainment of the 2008 Ozone National Ambient Air Quality Standards; Mariposa County
December 2, 2016: The Environmental Protection Agency (EPA) is taking direct final action to determine that the Mariposa County, California ozone nonattainment area has attained the 2008 ozone National Ambient Air Quality Standards, and proposing a rule based on the same determination. This rule will be effective 60 days after date of publication in the Federal Register unless we receive adverse comments by 30 days after date of publication. If we receive adverse comments, we will publish a timely withdrawal in the Federal Register to notify the public that this direct final rule will not take effect, and we will address the comments in a subsequent final action based on the proposal.
- Federal Register: Direct Final Rule (published December 21, 2016 )
- Federal Register: Proposed Rule (published December 21, 2016 )
- Fact Sheet (PDF) (1 pp, 312 K)
Contact Information
Nancy Levin (levin.nancy@epa.gov)
Air Planning Office, US EPA, Region 9
(415) 972-3848
Anna Mebust (mebust.anna@epa.gov)
Air Quality Analysis Office, US EPA, Region 9
(415) 972-3265
September 2016: (Proposed rulemaking) Determination of Attainment of the 2008 Ozone National Ambient Air Quality Standards; Eastern San Luis Obispo, California
September 28, 2016: EPA is proposing to determine that the San Luis Obispo County (Eastern San Luis Obispo) ozone nonattainment area (NAA) has attained the 2008 ozone National Ambient Air Quality Standards by the applicable attainment date of July 20, 2016. This determination is based on complete, quality-assured and certified data for the 3-year period preceding that attainment date. If this determination is finalized, the Eastern San Luis Obispo NAA will not be reclassified to a higher ozone classification.
- Federal Register Notice: Proposed Rule (published October 12, 2016)
- Fact Sheet (PDF) (1 pp, 190 K)
Contact Information
Nancy Levin (levin.nancy@epa.gov)
(415) 972-3848
August 2013: Final Rule Determining Attainment for the 2006 24-Hour PM2.5 National Ambient Air Quality Standard in the Chico Nonattainment Area
On August 22, 2013, EPA made a final rule determining that the Chico nonnattainment area in Butte County, California has attained and continues to attain the 2006 24-hour PM 2.5 National Ambient Air Quality Standard.
- Federal Register Notice: Final Rule (published September 10, 2013)
- Fact Sheet (PDF) (2 pp, 165K)