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drift deposition values are included which account for more options available in the AgDRIFT model which allows for flexibility in the risk management process. These include:

• All canopy types for orchard airblast sprayers,

• All boom height and spray quality combinations available for groundboom sprayers, and

• Different options for aircraft including consideration of helicopter use and differing spray qualities (e.g., coarse instead of fine to medium spray quality).
V. Request for Comment

EPA is providing an opportunity, through this notice, for the public to provide comments and input on any additional information that may impact the Agency’s assessment of spray drift in pesticide risk assessments. Specifically included within the Agency’s request for comments are the model-generated spray drift values as described in either or both of the draft guidance documents.

With regards to the Ecological and Drinking Water Assessment Guidance, as discussed in Unit III., EPA currently uses spray drift estimates, developed in the 1990s, using best professional judgement: 5% (aerial application), 3% (air-blast application) and 1% (ground application) in selected terrestrial and Tier II aquatic exposure assessments. Based upon continued model refinements, EPA is revising this approach and is beginning to incorporate AgDRIFT model estimates in all tiers for terrestrial and aquatic environments to estimate more realistic exposure from spray drift deposition. This approach is more consistent with current approaches throughout OPP. EPA is seeking comment on this approach.

While EPA does not intend to formally respond to all comments made, comments in response to this notice will be taken into consideration as EPA finalizes these guidance documents. If substantive comments are made that may substantially change the EPA’s consideration of spray drift in pesticide risk assessment, EPA will notify the public of these comments and describe how EPA has responded to them.

VI. References

As indicated under **ADDRESSES** , a docket has been established for this notice under docket ID number EPA– HQ–OPP–2013–0676. The following is a listing of the documents that are specifically referenced in this action. The docket includes these documents and other information considered by EPA, including documents that are referenced within the documents that are included in the docket, even if the referenced document is not physically located in the docket. For assistance in locating these other documents, please consult the persons listed under **FOR**

**FURTHER INFORMATION CONTACT**

. 1. USEPA. Guidance on Modeling Offsite

Deposition of Pesticides via Spray Drift for Ecological and Drinking Water Assessments for the Environmental Fate and Effects Division (Draft dated 11/1/ 2013). 2. USEPA. Residential Exposure Assessment

Standard Operating Procedures (SOPs), Addenda 1: Consideration of Spray Drift (Draft dated 11/1/2013). 3. USEPA. Use of AgDRIFT and AGDISP in

OPP Risk Assessments. 4. RESOLVE. 1992. Improving Aquatic Risk

Assessment under FIFRA: Report of the Aquatic Effects Dialogue Group. Published by World Wildlife Fund, Suite 500, 1250 24th Street NW., Washington, DC 20037. 5. Birchfield N B. 2004. Pesticide spray drift

and ecological risk assessment in the U.S. EPA: A comparison between current default spray drift deposition levels and AgDRIFT predictions in screening-level risk assessments. Aspects of Applied Biology 71: 125–131.
List of Subjects

Environmental protection, Administrative practice and procedure, Agricultural commodities, Pesticides and pests.

Dated: January 13, 2014. Steve Bradbury, Director, Office of Pesticide Programs.

[FR Doc. 2014–01234 Filed 1–28–14; 8:45 am]

**BILLING CODE 6560–50–P**

**ENVIRONMENTAL PROTECTION AGENCY** 

**[FRL–9905–98–OA]**

**Notification of a Public Meeting of the Clean Air Scientific Advisory**  **Committee (CASAC) Ozone Review**
**Panel**

**AGENCY :**  Environmental Protection Agency (EPA).

**ACTION :**  Notice.

**SUMMARY :**  The EPA Science Advisory Board (SAB) Staff Office announces a public meeting of the CASAC Ozone Review Panel to conduct a peer review of three draft EPA documents: (1) Health Risk and Exposure Assessment for Ozone—Second External Review Draft (January 2014), (2) Welfare Risk and Exposure Assessment for Ozone— Second External Review Draft (January 2014) and (3) Policy Assessment for the Review of the Ozone National Ambient Air Quality Standards—Second External Review Draft (January 2014)

. **DATES :**  The CASAC Ozone Review Panel meeting will be held on Tuesday, March 25, 2014 from 9:00 a.m. to 5:30 p.m. (Eastern Time), Wednesday, March 26, 2014 from 8:30 a.m. to 5:30 p.m. (Eastern Time) and on Thursday, March 27, 2014 from 8:30 a.m. to 1:00 p.m. (Eastern Time).

**ADDRESSES :**  The public meeting will be held at the Carolina Inn at 211 Pittsboro St., Chapel Hill, NC 27516.

**FOR FURTHER INFORMATION CONTACT :**  Any member of the public who wants further information concerning the public meeting may contact Dr. Holly Stallworth, Designated Federal Officer (DFO), via telephone at (202) 564–2073 or email at stallworth.holly@epa.gov

. General information concerning the CASAC can be found on the EPA Web
site at http://www.epa.gov/casac

. **SUPPLEMENTARY INFORMATION :**  The CASAC was established pursuant to the Clean Air Act (CAA) Amendments of 1977, codified at 42 U.S.C. 7409D(d)(2), to provide advice, information, and recommendations to the Administrator on the scientific and technical aspects of issues related to the criteria for air quality standards, research related to air quality, sources of air pollution, and the strategies to attain and maintain air quality standards and to prevent significant deterioration of air quality. The CASAC is a Federal Advisory Committee chartered under the Federal Advisory Committee Act (FACA), 5 U.S.C., App. 2. Pursuant to FACA and EPA policy, notice is hereby given that the chartered CASAC augmented with additional experts, known as the CASAC Ozone Review Panel, will hold a public meeting to peer review EPA’s draft documents referenced above. These EPA draft documents are prepared as part of the agency’s review of the National Ambient Air Quality Standards (NAAQS) for ozone.

Section 109(d)(1) of the CAA requires that the Agency periodically review and revise, as appropriate, the air quality criteria and the NAAQS for the six ‘‘criteria’’ air pollutants, including ozone. EPA is currently reviewing the primary (health-based) and secondary (welfare-based) NAAQS for ozone. The CASAC previously reviewed EPA’s Health Risk and Exposure Assessment for Ozone (First External Review Draft— Updated August 2012) and Welfare Risk and Exposure Assessment for Ozone (First External Review Draft—Updated August 2012) . CASAC’s comments on both of these documents are reported in a letter to the EPA Administrator, dated November 19, 2012 (EPA–CASAC–13–


### 4694 Federal Register / Vol. 79, No. 19 / Wednesday, January 29, 2014 / Notices

002). CASAC also previously reviewed
EPA’s Policy Assessment for the Review of the Ozone National Ambient Air Quality Standards (First External Review Draft—August 2012) as reported in a letter to the EPA Administrator, dated November 26, 2012 (EPA– CASAC–13–003).

The CASAC Ozone Review Panel will comply with the provisions of FACA and all appropriate SAB Staff Office procedural policies.

Technical Contacts: Any technical questions concerning the Health Risk and Exposure Assessment for Ozone— Second External Review Draft (January 2014) or concerning the Welfare Risk and Exposure Assessment for Ozone— Second External Review Draft (January 2014) should be directed to Dr. Bryan Hubbell (hubbell.bryan@epa.gov ). Any questions concerning the Policy Assessment for the Review of the Ozone National Ambient Air Quality Standards—Second External Review Draft (January 2014) should be directed to Ms. Susan Lyon Stone ( stone.susan@epa.gov ). Availability of Meeting Materials: Prior to the meeting, the review documents, agenda and other materials will be accessible through the calendar link on the blue navigation bar at http:// www.epa.gov/casac/.

Procedures for Providing Public Input: Public comment for consideration by EPA’s federal advisory committees and panels has a different purpose from public comment provided to EPA program offices. Therefore, the process for submitting comments to a federal advisory committee is different from the process used to submit comments to an EPA program office. Federal advisory committees and panels, including scientific advisory committees, provide independent advice to EPA. Members of the public can submit relevant comments for a federal advisory committee to consider pertaining to EPA’s charge to the committee or review materials. Input from the public to the CASAC will have the most impact if it provides specific scientific, technical information or analysis or if it relates to the clarity or accuracy of the technical information for the CASAC’s consideration. Members of the public wishing to provide comment should contact the Designated Federal Officer directly. Oral Statements: In general, individuals or groups requesting an oral presentation at a public meeting will be limited to five minutes. Interested parties should contact Dr. Stallworth, DFO, in writing (preferably via email) at the contact information noted above by March 13, 2014, to be placed on the list of public speakers for the meeting. Written Statements: Written statements should be submitted to the DFO via email at the contact information noted above by March 13, 2014 for the meeting so that the information may be made available to the CASAC Panel for their consideration. Written statements should be supplied in one of the following electronic formats: Adobe Acrobat PDF, MS Word, MS PowerPoint, or Rich Text files in IBM– PC/Windows 98/2000/XP format. It is the SAB Staff Office general policy to post public comments on the Web page for the advisory meeting or teleconference. Submitters are requested to provide an unsigned version of each document because the SAB Staff Office does not publish documents with signatures on its Web sites. Members of the public should be aware that their personal contact information, if included in any written comments, may be posted to the CASAC Web site. Copyrighted material will not be posted without explicit permission of the copyright holder.

Accessibility: The public can view theMarch 25–27, 2014 meeting via a noninteractive webcast that will be broadcast on the internet. The connection information to view the meeting via webcast will be provided on the SAB Web site at http:// www.epa.gov/casac in advance of the meeting. For information on access or services for individuals with disabilities, please contact Dr. Holly Stallworth at (202) 564–2073 or stallworth.holly@epa.gov. To request accommodation of a disability, please contact Dr. Stallworth preferably at least ten days prior to the meeting to give EPA as much time as possible to process your request.

Dated: January 16, 2014. Christopher Zarba, Director, EPA Science Advisory Board Staff Office.

[FR Doc. 2014–01723 Filed 1–28–14; 8:45 am]

**BILLING CODE 6560–50–P**

**ENVIRONMENTAL PROTECTION AGENCY** 

**[EPA–HQ–OAR–2008–0699; FRL–9905–99– OAR]** 

**Release of Draft Documents Related to the Review of the National Ambient Air**  **Quality Standards for Ozone**

**AGENCY :**  Environmental Protection Agency (EPA).

**ACTION :**  Notice of availability and public comment period.

**SUMMARY :**  On or about January 31, 2014, the Office of Air Quality Planning and Standards (OAQPS) will make available for public comment three draft documents prepared as part of the current review of the national ambient air quality standards (NAAQS) for Ozone (O 3 ). Two are draft risk and exposure assessment documents: Health Risk and Exposure Assessment for Ozone, Second External Review Draft and Welfare Risk and Exposure Assessment for Ozone, Second External Review Draft, and the third is the draft policy assessment document: Policy Assessment for the Review of the Ozone National Ambient Air Quality Standards, Second External Review Draft.

**DATES :**  Comments on all documents should be submitted on or before March
24, 2014.

**ADDRESSES :**  This document is available primarily via the Internet at the following Web site: http://www.epa.gov/ ttn/naaqs/standards/ozone/s

_ o3

_ index.html.

Submit your comments, identified by Docket ID No. EPA–HQ–OAR–2008– 0699, by one of the following methods:

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

comments.

• Email: Comments may be sent by electronic mail (email) to a-and-rdocket@epa.gov, Attention Docket ID No. EPA–HQ–OAR–2008–0699.

• Fax: Fax your comments to 202– 566–9744, Attention Docket ID. No. EPA–HQ–OAR–2008–0699.

• Mail: Send your comments to: Air and Radiation Docket and Information Center, Environmental Protection Agency, Mailcode: 2822T, 1200 Pennsylvania Ave. NW., Washington, DC 20460, Attention Docket ID No. EPA–HQ–OAR–2008–0699. Please include a total of two copies.

• Hand Delivery or Courier: EPA Docket Center, 1301 Constitution Ave. NW., Room 3334, Washington, DC. Such deliveries are only accepted during the Docket’s normal hours of operation, and special arrangements should be made for deliveries of boxed information.

Instructions: Direct your comments to Docket ID No. EPA–HQ–OAR–2008– 0699. The Environmental Protection Agency (EPA)’s policy is that all comments received will be included in the public docket without change and may be made available online at 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