March 2, 2015

MEMORANDUM

SUBJECT: Extending Comment Period for EPA-HQ-OAR-2013-0169

FROM: Robin Langdon

Health and Environmental Impacts Division

Office of Air Quality Planning and Standards, Office of Air and Radiation

U.S. Environmental Protection Agency

Thru: Darryl Weatherhead

Group Leader, Health and Environmental Impacts Division

Office of Air Quality Planning and Standards, Office of Air and Radiation

U.S. Environmental Protection Agency

TO: EPA Docket Office

Docket number EPA-HQ-OAR-2013-0169 is open for comments on the Regulatory 

Impact Analysis of the Proposed Revisions to the National Ambient Air Quality Standards 

for Ground-Level Ozone. The docket is currently open for public comment from 

December 5, 2014, to March 5, 2015. The agency is extending the comment period to 

March 17, 2015.

As indicated in the memo opening the docket, submit your comments, identified by 

Docket ID No. EPA-HQ-OAR-2013-0169, by one of the following methods: 

 www.regulations.gov: Follow the on-line instructions for submitting comments.

 Email: a-and-r-Docket@epamail.epa.gov. Include docket ID No. EPA-HQOAR-2013-0169 in the subject line of the message.

 Fax: (202) 566-9744.

 Mail: Environmental Protection Agency, EPA Docket Center (EPA/DC), Mail 

Code: 28221T, Attention Docket ID No. EPA-HQ-OAR-2013-0169, 1200 

Pennsylvania Ave. NW, Washington, DC 20460.

 Hand/Courier Delivery: EPA Docket Center, Room 3334, EPA WJC West 

Building, 1301 Constitution Avenue NW, Washington, DC 20004, Attention 

Docket ID No. EPA-HQ-OAR-2013-0169. Such deliveries are only accepted 

during the Docket’s normal hours of operation, and special arrangements should 

be made for deliveries of boxed information.

EPA’s policy is that all comments received will be included in the public docket without 

change and may be made available online at http://www.regulations.gov, including any 

personal information provided, unless the comment includes information claimed to be 
Confidential Business Information (CBI) or other information whose disclosure is 

restricted by statute. Do not submit information that you consider to be CBI or otherwise 

protected through http://www.regulations.gov or e-mail. The http://www.regulations.gov

Web site is an ‘‘anonymous access’’ system, which means EPA will not know your 

identity or contact information unless you provide it in the body of your comment. If you 

send an e-mail comment directly to EPA without going through 

http://www.regulations.gov, your e-mail address will be automatically captured and 

included as part of the comment that is placed in the public docket and made available on 

the Internet. If you submit an electronic comment, EPA recommends that you include 

your name and other contact information in the body of your comment and with any disk 

or CD–ROM you submit. If EPA cannot read your comment due to technical difficulties 

and cannot contact you for clarification, EPA may not be able to consider your comment. 

Electronic files should avoid the use of special characters, avoid any form of encryption, 

and be free of any defects or viruses. For additional information about EPA’s public 

docket, visit the EPA Docket Center homepage at 

http://www.epa.gov/epahome/dockets.htm.

Should you have any questions regarding this memorandum, please contact Eric Shultz at 

(202) 566-1883, or via email at schultz.eric@epa.gov.