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 publication appearing on the Government Printing Office website, 

http://fdsys.gpo.gov/fdsys/search/home.action, and on www.regulations.gov in Docket Number EPAR09-OAR-2016-0669.

6560-50-P

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R09-OAR-2016-0669; FRL-]

Determination of Attainment of the 2008 Ozone National Ambient Air Quality Standards; 

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 National Ambient Air Quality Standards (NAAQS or “standards”). This proposed 

determination is based on complete, quality-assured and certified data for 2013-2015.

Preliminary data for 2016 are consistent with continued attainment of the standards in the 

Mariposa County NAA. If 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 

standards for the Mariposa County NAA will be suspended for as long as the area continues to 

meet those standards.

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 accuracy of this version, but it is not the official 

version.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R09-OAR-2016-0669

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 comment 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 submission (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 submissions, and general 

guidance on making effective comments, please visit http://www2.epa.gov/dockets/commentingepa-dockets.

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

3848, 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 Agency 
3

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 accuracy 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 plan 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 Rules and Regulations section of this Federal Register.

December 2, 2016. //signed//

________________ ______________________________

Dated: Deborah Jordan,

Acting Regional Administrator,

Region IX.