The EPA Acting Regional Administrator, Deborah Jordan, signed the following rule on December 2 , 2016 and EPA is submitting it for publication in the Federal Register (FR). While we have taken steps to ensure the accuracy of this version of this rule, it is not the official version. Please refer to the official version in a forthcoming FR publicatio n appearing on the Government Printing Office website, http://fdsys.gpo.gov/fdsys/search/home.action , and on www.regulations.gov in Docket Number EPA

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- P ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [EPA
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- ] Determination of Attainment of the 2008 Ozone National Ambient Air Quality Standard s ; Mariposa County , California AGENCY: The Environmental Protection Agency (EPA)

. ACTION : Proposed rule

. SUMMARY: The Environmental Protection Agency ( EPA ) is proposing to determine that the Mariposa County , California Moderate Nonattainment Area (NAA) has attained the 2008 8

- hour
ozone N ational Ambient Air Quality Standards (NAAQS or “standards”)

. This proposed determination is based on complete, quality

- as sured and certified data for 2013

- 2015. Preliminary data for 2016 are consistent with continued attainment of the standard s in the Mariposa County NAA

. I f the determination is finalized as proposed, any unfulfilled obligations to submit revisions to the state implementation plan (SIP) related to attainment of the 2008 ozone standard s for the Mariposa County NAA w ill be suspended for as long as the area continue s to meet th os e standard s . DATES: Any comments must arrive by [INSERT DATE 30 DAYS AFTER DATE OF PUBLICATION IN THE FEDERAL REGISTER ]

.2 This document is a prepublication version signed by EPA Acting Regional Administrator Deborah Jordan on December 2 , 2016. We have taken steps to ensure the a ccuracy of this version, but it is not the official version.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA

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at http://www.regulations.gov , or via email to levin.nancy@epa.gov . For comments submitted at Regulations.gov, follow the online instructions for submitting comments. Once submitted, comments cannot be edited or removed from Regulations.gov. For either manner of submission, the EPA may publish any com ment received to its public docket. Do not submit electronically any information you consider to be Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Multimedia submissions (audio, video, etc.) must be accompanied by a written comment. The written comment is considered the official comment and should include discussion of all points you wish to make. The EPA will generally not consider comments or comment contents located outside of the primary submissio n ( i.e. , on the Web, cloud or other file sharing system). For additional submission methods, please contact the person identified in the FOR FURTHER INFORMATION CONTACT section. For the full EPA public comment policy, information about CBI or multimedia su bmissions, and general guidance on making effective comments, please visit http://www2.epa.gov/dockets/commenting

epa - dockets

. FOR FURTHER INFORMATION CONTACT: Nancy Levin , EPA Region IX, ( 415) 972

- 3 848 , levin.nancy@epa.gov

. SUPPLEMENTARY INFORMATION: Throughout this document , whenever “we,” “us” or “our” is used, we mean the EPA. In the Rules and Regulations section of this Federal Register , we are making a determination that the Mariposa County, California Moderate NAA has attained the 2008 8

- hour ozone NAAQS as a direct final rule without prior proposal because the Agency3 This document is a prepublication version signed by EPA Acting Regional Administrator Deborah Jordan on December 2 , 2016. We have taken steps to ensure the a ccuracy of this version, but it is not the official version.
views this action as noncontroversial and anticipates no adverse comments. A detailed rationale for this determination of attainment is set forth in the direct final rule. If we receive adverse comments, however, we will publish a timely withdrawal of the direct final rule and address the comments in subsequent action based on this proposed rule. We do not pl an to open a second comment period, so anyone interested in commenting should do so at this time. If we do not receive adverse comments, no further activity is planned. For further information, please see the direct final rule, which is located in the Rule s and Regulations section of this Federal Register

.

December 2, 2016

. //signed//

________________ ______________________________ Dated: Deborah Jordan , Acting Regional Administrator, Region IX.