Release of Draft Risk and Exposure Assessments and Final Integrated Review Plan for the National Ambient Air Quality Standards for Ozone, 23755-23757 [2011-10340]

Download as PDF Federal Register / Vol. 76, No. 82 / Thursday, April 28, 2011 / Proposed Rules [Revise 9.4.3a as follows:] 5.1.4 Intelligent Mail package barcodes must bear a human-readable service banner with the text ‘‘USPS TRACKING #’’ printed in accordance with Exhibit 708.5.1.4. Other approved extra services barcodes must bear a human-readable service banner with the text ‘‘USPS DELIVERY CONFIRMATION’’ prepared in accordance with 708.5.0. * * * * * * * * Physical barcode requirements are as follows: * * * * * 10.0 * Signature Confirmation * 10.4 * * * * * * Barcodes * * Physical Barcode Requirements [Revise 5.1.4d as follows:] d. Barcode Height: unless allowed by exception, the minimum height must be at least 0.75 inch. * * * * * g. Human-Readable Representation of Barcode Data and Service Banner: text must be printed in accordance with Exhibit 5.1.4 and as follows: * * * * * [Revise 5.1.4g2 as follows:] [Revise 10.4.3a as follows:] a. Intelligent Mail package barcodes must bear a human-readable service banner with the text ‘‘USPS SIGNATURE TRACKING #’’ printed in accordance with Exhibit 708.5.1.4. Other approved extra services barcodes must bear a human-readable service banner with the text ‘‘USPS SIGNATURE CONFIRMATION’’ prepared in accordance with 708.5.0. * * * * * 2. Service Banners must include the human-readable text ‘‘USPS SIGNATURE TRACKING #’’ for mailpieces requiring a signature at delivery and ‘‘USPS TRACKING #’’ for all other mailpieces (service banner text shown in Exhibit 5.1.4 is an example). See Publication 91 (addendum appendix H) at https://ribbs.usps.gov for additional information. * * * * * Exhibit 5.1.4 10.4.3 Printing * * * Labels used for Signature Confirmation must meet these additional specifications: 700 Special Standards * * * * * 705 Advanced Preparation and Special Postage Payment Systems * * * * Barcode Specifications [Replace Exhibit 5.1.4 with a revised label illustrating the proposed generic human-readable service banner text.] * * * * * We will publish an appropriate amendment to 39 CFR Part 111 to reflect these changes if our proposal is adopted. Stanley F. Mires, Chief Counsel, Legislative. * [FR Doc. 2011–10244 Filed 4–27–11; 8:45 am] 7.0 Combining Package Services and Parcel Select Parcels for Destination Entry BILLING CODE 7710–12–P 7.1 Combining Parcels—DSCF and DDU Entry ENVIRONMENTAL PROTECTION AGENCY 7.1.1 40 CFR Parts 50 and 58 Qualification mstockstill on DSKH9S0YB1PROD with PROPOSALS [Revise the last sentence of 7.1.1 as follows:] [EPA–HQ–OAR–2008–0699; FRL–9300–4] RIN 2060–AP38 * * * Parcels claiming destination entry pricing must bear a unique Intelligent Mail package barcode or extra services barcode, including a postal routing code, prepared under 708.5.0. * * * * * Release of Draft Risk and Exposure Assessments and Final Integrated Review Plan for the National Ambient Air Quality Standards for Ozone 708 Technical Specifications Environmental Protection Agency (EPA). ACTION: Notice of availability. * * SUMMARY: * * AGENCY: * 5.0 Standards for Package and Extra Service Barcodes 5.1 Intelligent Mail Package Barcode * * * VerDate Mar<15>2010 * * 16:29 Apr 27, 2011 Jkt 223001 On or about April 22, 2011, the EPA is making available for public review the documents titled, ‘‘Ozone National Ambient Air Quality Standards: Scope and Methods Plan for Health Risk and Exposure Assessment,’’ PO 00000 Frm 00024 Fmt 4702 Sfmt 4702 23755 (REA Plan for the primary ozone NAAQS) and ‘‘Ozone National Ambient Air Quality Standards: Scope and Methods Plan for Welfare Risk and Exposure Assessment’’ (REA Plan for the secondary ozone NAAQS). These documents contain the plans for the risk and exposure analyses that EPA is preparing to conduct in support of the reviews of ozone NAAQS. EPA is also making available to the public the final document ‘‘Integrated Review Plan for the Ozone National Ambient Air Quality Standards’’ (IRP). This document contains the plans for the review of the air quality criteria and national ambient air quality standards (NAAQS) for ozone. The Ozone NAAQS provide for the protection of public health and the environment from ozone in ambient air. DATES: Comments should be submitted by June 27, 2011. ADDRESSES: These documents will be available via the Internet at the following Web site: https://www.epa.gov/ ttn/naaqs/standards/ozone/ s_o3_index.html. Submit your comments on the REAs, identified by Docket ID No. EPA–HQ–OAR–2008– 0699 by one of the following methods: • https://www.regulations.gov: Follow the on-line instructions for submitting comments. • E-mail: a-and-r-Docket@epa.gov. • Fax: 202–566–9744. • Mail: EPA–HQ–OAR–2008–0669, Environmental Protection Agency, Mail code 6102T, 1200 Pennsylvania Ave., NW., Washington, DC 20460. Please include a total of two copies. • Hand Delivery: Environmental Protection Agency, EPA West, Room 3334, 1301 Constitution Ave., NW., 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. EPA’s policy is that all comments received will be included in the public docket without change and may be made available online at https:// 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 https:// www.regulations.gov (or e-mail). The https://www.regulations.gov Web site is an ‘‘anonymous access’’ system, which means EPA will not know your identity or contact information unless you E:\FR\FM\28APP1.SGM 28APP1 mstockstill on DSKH9S0YB1PROD with PROPOSALS 23756 Federal Register / Vol. 76, No. 82 / Thursday, April 28, 2011 / Proposed Rules provide it in the body of your comment. If you send an e-mail comment directly to EPA without going through https:// 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, 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 https:// www.epa.gov/epahome/dockets.htm. Docket: All documents in the docket are listed in the https:// www.regulations.gov index. Although listed in the index, some information is not publicly available, e.g., CBI or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, will be publicly available only in hard copy. Publicly available docket materials are available either electronically in https:// www.regulations.gov or in hard copy at the Air and Radiation Docket and Information Center, EPA/DC, EPA West, Room 3334, 1301 Constitution Ave., NW., Washington, DC. The Public Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday through Friday, excluding legal holidays. The telephone number for the Public Reading Room is (202) 566–1744, and the telephone number for the Air and Radiation Docket and Information Center is (202) 566–1742. FOR FURTHER INFORMATION CONTACT: REA Plan for the primary ozone standard: John Langstaff, Office of Air Quality Planning and Standards (Mail code C539–07), U.S. Environmental Protection Agency, Research Triangle Park, NC 27711; telephone number: 919–541–1449; fax number: 919–541– 5315; e-mail address: langstaff.john@epa.gov. REA Plan for the secondary ozone standard: Travis Smith, Office of Air Quality Planning and Standards (Mail code C539–07), U.S. Environmental Protection Agency, Research Triangle Park, NC 27711; telephone number: 919–541–2035; fax number: 919–541–5315; e-mail address: smith.jtravis@epa.gov. SUPPLEMENTARY INFORMATION: VerDate Mar<15>2010 16:29 Apr 27, 2011 Jkt 223001 I. General Information A. What should I consider as I prepare my comments for EPA? 1. Submitting CBI. Do not submit this information to EPA through https:// www.regulations.gov or e-mail. Clearly mark the part or all of the information that you claim to be CBI. For CBI information in a disk or CD–ROM that you mail to EPA, mark the outside of the disk or CD–ROM as CBI and then identify electronically within the disk or CD–ROM the specific information that is claimed as CBI. In addition to one complete version of the comment that includes information claimed as CBI, a copy of the comment that does not contain the information claimed as CBI must be submitted for inclusion in the public docket. Information so marked will not be disclosed except in accordance with procedures set forth in 40 CFR part 2. 2. Tips for Preparing Your Comments. When submitting comments, remember to: • Identify the rulemaking by docket number and other identifying information (subject heading, Federal Register date and page number). • Follow directions—The agency may ask you to respond to specific questions or organize comments by referencing a Code of Federal Regulations (CFR) part or section number. • Explain why you agree or disagree; suggest alternatives and substitute language for your requested changes. • Describe any assumptions and provide any technical information and/ or data that you used. • If you estimate potential costs or burdens, explain how you arrived at your estimate in sufficient detail to allow for it to be reproduced. • Provide specific examples to illustrate your concerns, and suggest alternatives. • Explain your views as clearly as possible, avoiding the use of profanity or personal threats. • Make sure to submit your comments by the comment period deadline identified. II. Information Specific to This Document Two sections of the Clean Air Act (CAA) govern the establishment and revision of the NAAQS. Section 108 (42 U.S.C. 7408) directs the Administrator to identify and list certain air pollutants and then to issue air quality criteria for those pollutants. The Administrator is to list those air pollutants that in her ‘‘judgment, cause or contribute to air pollution which may reasonably be anticipated to endanger public health or PO 00000 Frm 00025 Fmt 4702 Sfmt 4702 welfare;’’ ‘‘the presence of which in the ambient air results from numerous or diverse mobile or stationary sources;’’ and ‘‘for which * * * [the Administrator] plans to issue air quality criteria * * *’’ Air quality criteria are intended to ‘‘accurately reflect the latest scientific knowledge useful in indicating the kind and extent of all identifiable effects on public health or welfare which may be expected from the presence of [a] pollutant in the ambient air * * *’’ (42 U.S.C. 7408(b)). Under section 109 (42 U.S.C. 7409), EPA establishes primary (health-based) and secondary (welfare-based) NAAQS for pollutants for which air quality criteria are issued. Section 109(d) requires periodic review and, if appropriate, revision of existing air quality criteria. The revised air quality criteria reflect advances in scientific knowledge on the effects of the pollutant on public health or welfare. The EPA is also required to periodically review and revise the NAAQS, if appropriate, based on the revised criteria. Section 109(d)(2) requires that an independent scientific review committee ‘‘shall complete a review of the criteria * * * and the national primary and secondary ambient air quality standards * * * and shall recommend to the Administrator any new * * * standards and revisions of existing criteria and standards as may be appropriate * * *.’’ Since the early 1980s, this independent review function has been performed by the Clean Air Scientific Advisory Committee (CASAC). Presently, EPA is reviewing the NAAQS for ozone. Key components of this review include a quantitative population exposure analysis and health risk assessment and a quantitative ecosystem exposure and welfare risk analysis. OAQPS has developed Risk and Assessment Plans (REA Plans) for Ozone Health Risk and Exposure and Ozone Welfare Risk and Exposure which include a discussion of the scope, approaches, and methods that staff is planning to use in conducting the exposure analysis and health and welfare risk assessment. The draft REA Plans and final IRP document announced today have been developed as part of the planning phase for the review. These documents will be available on the EPA’s Technology Transfer Network (TTN) Web site at https://www.epa.gov/ttn/naaqs/ standards/ozone/s_o3_index.html in the ‘‘Documents for Review Initiated in 2008’’ section under ‘‘Planning Documents.’’ The REA Plans are being made available for consultation with CASAC and for public comment. Comments E:\FR\FM\28APP1.SGM 28APP1 Federal Register / Vol. 76, No. 82 / Thursday, April 28, 2011 / Proposed Rules should be submitted to the docket, as described above, by June 27, 2011. The CASAC consultation on these planning documents is scheduled for May 19–20, 2011. A separate Federal Register notice will provide details about this meeting and the process for participation. Dated: April 25, 2011. Mary Henigin, Acting Director, Office of Air Quality Planning and Standards. [FR Doc. 2011–10340 Filed 4–27–11; 8:45 am] BILLING CODE 6560–50–P ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [EPA–R05–OAR–2007–1179; FRL–9299–8] Approval and Promulgation of Air Quality Implementation Plans; Infrastructure SIP Requirements for 1997 8-Hour Ozone and PM2.5 National Ambient Air Quality Standards Environmental Protection Agency (EPA). ACTION: Proposed rule. AGENCY: EPA is proposing to approve some elements and conditionally approve other elements of certifications submitted by Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin regarding the infrastructure requirements of sections 110(a)(1) and (2) of the Clean Air Act (CAA) for the 1997 eight-hour ground level ozone national ambient air quality standards (1997 ozone NAAQS) and 1997 fine particle national ambient air quality standards (1997 PM2.5 NAAQS). The requirements are designed to ensure that the components of each State’s air quality management program are adequate to meet the State’s responsibilities under the CAA. DATES: Comments must be received on or before May 31, 2011. ADDRESSES: Submit your comments, identified by Docket ID No. EPA–R05– OAR–2007–1179, by one of the following methods: 1. https://www.regulations.gov: Follow the on-line instructions for submitting comments. 2. E-mail: mooney.john@epa.gov. 3. Fax: (312) 692–2551. 4. Mail: John M. Mooney, Chief, Air Programs Branch (AR–18J), U.S. Environmental Protection Agency, 77 West Jackson Boulevard, Chicago, Illinois 60604. 5. Hand Delivery: John M. Mooney, Chief, Air Programs Branch (AR–18J), U.S. Environmental Protection Agency, mstockstill on DSKH9S0YB1PROD with PROPOSALS SUMMARY: VerDate Mar<15>2010 16:29 Apr 27, 2011 Jkt 223001 77 West Jackson Boulevard, Chicago, Illinois 60604. Such deliveries are only accepted during the Regional Office normal hours of operation, and special arrangements should be made for deliveries of boxed information. The Regional Office official hours of business are Monday through Friday, 8:30 a.m. to 4:30 p.m., excluding Federal holidays. Instructions: Direct your comments to Docket ID EPA–R05–OAR–2007–1179. EPA’s policy is that all comments received will be included in the public docket without change and may be made available online at https:// 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 https:// www.regulations.gov or e-mail. The https://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 https:// 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, any form of encryption, and be free of any defects or viruses. Docket: All documents in the docket are listed in the https:// www.regulations.gov index. Although listed in the index, some information is not publicly available, e.g., CBI or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, will be publicly available only in hard copy. Publicly available docket materials are available either electronically in https:// www.regulations.gov or in hard copy at the U.S. Environmental Protection Agency, Region 5, Air and Radiation Division, 77 West Jackson Boulevard, Chicago, Illinois 60604. This facility is open from 8:30 a.m. to 4:30 p.m., PO 00000 Frm 00026 Fmt 4702 Sfmt 4702 23757 Monday through Friday, excluding Federal holidays. We recommend that you telephone Andy Chang, Environmental Engineer, at (312) 886– 0258 before visiting the Region 5 office. FOR FURTHER INFORMATION CONTACT: Andy Chang, Environmental Engineer, Attainment Planning and Maintenance Section, Air Programs Branch (AR–18J), U.S. Environmental Protection Agency, Region 5, 77 West Jackson Boulevard, Chicago, Illinois 60604, (312) 886–0258, chang.andy@epa.gov. SUPPLEMENTARY INFORMATION: Throughout this document whenever ‘‘we,’’ ‘‘us,’’ or ‘‘our’’ is used, we mean EPA. This SUPPLEMENTARY INFORMATION section is arranged as follows: I. What should I consider as I prepare my comments for EPA? II. What is the background of these submittals? A. What State submittals does this rulemaking address? B. Why did the States make these submittals? III. What criteria is EPA using to judge these submittals? IV. What did EPA find from its review of these submittals? A. Section 110(a)(2)(A)—Emission Limits and Other Control Measures B. Section 110(a)(2)(B)—Ambient Air Quality Monitoring/Data System C. Section 110(a)(2)(C)—Program for Enforcement of Control Measures D. Section 110(a)(2)(D)—Interstate Transport E. Section 110(a)(2)(E)—Adequate Resources F. Section 110(a)(2)(F)—Stationary Source Monitoring System G. Section 110(a)(2)(G)—Emergency Power H. Section 110(a)(2)(H)—Future SIP Revisions I. Section 110(a)(2)(I)—Nonattainment Area Plan or Plan Revisions Under Part D J. Section 110(a)(2)(J)—Consultation With Government Officials; Public Notifications; Prevention of Significant Deterioration; Visibility Protection K. Section 110(a)(2)(K)—Air Quality Modeling/Data L. Section 110(a)(2)(L)—Permitting Fees M. Section 110(a)(2)(M)—Consultation/ Participation by Affected Local Entities V. What action is EPA taking? VI. Statutory and Executive Order Reviews I. What should I consider as I prepare my comments for EPA? When submitting comments, remember to: 1. Identify the rulemaking by docket number and other identifying information (subject heading, Federal Register date, and page number). 2. Follow directions—EPA may ask you to respond to specific questions or organize comments by referencing a Code of Federal Regulations (CFR) part or section number. E:\FR\FM\28APP1.SGM 28APP1

Agencies

[Federal Register Volume 76, Number 82 (Thursday, April 28, 2011)]
[Proposed Rules]
[Pages 23755-23757]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2011-10340]


=======================================================================
-----------------------------------------------------------------------

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 50 and 58

[EPA-HQ-OAR-2008-0699; FRL-9300-4]
RIN 2060-AP38


Release of Draft Risk and Exposure Assessments and Final 
Integrated Review Plan for the National Ambient Air Quality Standards 
for Ozone

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of availability.

-----------------------------------------------------------------------

SUMMARY: On or about April 22, 2011, the EPA is making available for 
public review the documents titled, ``Ozone National Ambient Air 
Quality Standards: Scope and Methods Plan for Health Risk and Exposure 
Assessment,'' (REA Plan for the primary ozone NAAQS) and ``Ozone 
National Ambient Air Quality Standards: Scope and Methods Plan for 
Welfare Risk and Exposure Assessment'' (REA Plan for the secondary 
ozone NAAQS). These documents contain the plans for the risk and 
exposure analyses that EPA is preparing to conduct in support of the 
reviews of ozone NAAQS. EPA is also making available to the public the 
final document ``Integrated Review Plan for the Ozone National Ambient 
Air Quality Standards'' (IRP). This document contains the plans for the 
review of the air quality criteria and national ambient air quality 
standards (NAAQS) for ozone. The Ozone NAAQS provide for the protection 
of public health and the environment from ozone in ambient air.

DATES: Comments should be submitted by June 27, 2011.

ADDRESSES: These documents will be available via the Internet at the 
following Web site: https://www.epa.gov/ttn/naaqs/standards/ozone/s_o3_index.html. Submit your comments on the REAs, identified by Docket 
ID No. EPA-HQ-OAR-2008-0699 by one of the following methods:
     https://www.regulations.gov: Follow the on-line 
instructions for submitting comments.
     E-mail: a-and-r-Docket@epa.gov.
     Fax: 202-566-9744.
     Mail: EPA-HQ-OAR-2008-0669, Environmental Protection 
Agency, Mail code 6102T, 1200 Pennsylvania Ave., NW., Washington, DC 
20460. Please include a total of two copies.
     Hand Delivery: Environmental Protection Agency, EPA West, 
Room 3334, 1301 Constitution Ave., NW., 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. EPA's policy is that all comments received will be included 
in the public docket without change and may be made available online at 
https://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 https://www.regulations.gov (or e-mail). The https://www.regulations.gov Web 
site is an ``anonymous access'' system, which means EPA will not know 
your identity or contact information unless you

[[Page 23756]]

provide it in the body of your comment. If you send an e-mail comment 
directly to EPA without going through https://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, 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 https://www.epa.gov/epahome/dockets.htm.
    Docket: All documents in the docket are listed in the https://www.regulations.gov index. Although listed in the index, some 
information is not publicly available, e.g., CBI or other information 
whose disclosure is restricted by statute. Certain other material, such 
as copyrighted material, will be publicly available only in hard copy. 
Publicly available docket materials are available either electronically 
in https://www.regulations.gov or in hard copy at the Air and Radiation 
Docket and Information Center, EPA/DC, EPA West, Room 3334, 1301 
Constitution Ave., NW., Washington, DC. The Public Reading Room is open 
from 8:30 a.m. to 4:30 p.m., Monday through Friday, excluding legal 
holidays. The telephone number for the Public Reading Room is (202) 
566-1744, and the telephone number for the Air and Radiation Docket and 
Information Center is (202) 566-1742.

FOR FURTHER INFORMATION CONTACT: REA Plan for the primary ozone 
standard: John Langstaff, Office of Air Quality Planning and Standards 
(Mail code C539-07), U.S. Environmental Protection Agency, Research 
Triangle Park, NC 27711; telephone number: 919-541-1449; fax number: 
919-541-5315; e-mail address: langstaff.john@epa.gov. REA Plan for the 
secondary ozone standard: Travis Smith, Office of Air Quality Planning 
and Standards (Mail code C539-07), U.S. Environmental Protection 
Agency, Research Triangle Park, NC 27711; telephone number: 919-541-
2035; fax number: 919-541-5315; e-mail address: smith.jtravis@epa.gov.

SUPPLEMENTARY INFORMATION: 

I. General Information

A. What should I consider as I prepare my comments for EPA?

    1. Submitting CBI. Do not submit this information to EPA through 
https://www.regulations.gov or e-mail. Clearly mark the part or all of 
the information that you claim to be CBI. For CBI information in a disk 
or CD-ROM that you mail to EPA, mark the outside of the disk or CD-ROM 
as CBI and then identify electronically within the disk or CD-ROM the 
specific information that is claimed as CBI. In addition to one 
complete version of the comment that includes information claimed as 
CBI, a copy of the comment that does not contain the information 
claimed as CBI must be submitted for inclusion in the public docket. 
Information so marked will not be disclosed except in accordance with 
procedures set forth in 40 CFR part 2.
    2. Tips for Preparing Your Comments. When submitting comments, 
remember to:
     Identify the rulemaking by docket number and other 
identifying information (subject heading, Federal Register date and 
page number).
     Follow directions--The agency may ask you to respond to 
specific questions or organize comments by referencing a Code of 
Federal Regulations (CFR) part or section number.
     Explain why you agree or disagree; suggest alternatives 
and substitute language for your requested changes.
     Describe any assumptions and provide any technical 
information and/or data that you used.
     If you estimate potential costs or burdens, explain how 
you arrived at your estimate in sufficient detail to allow for it to be 
reproduced.
     Provide specific examples to illustrate your concerns, and 
suggest alternatives.
     Explain your views as clearly as possible, avoiding the 
use of profanity or personal threats.
     Make sure to submit your comments by the comment period 
deadline identified.

II. Information Specific to This Document

    Two sections of the Clean Air Act (CAA) govern the establishment 
and revision of the NAAQS. Section 108 (42 U.S.C. 7408) directs the 
Administrator to identify and list certain air pollutants and then to 
issue air quality criteria for those pollutants. The Administrator is 
to list those air pollutants that in her ``judgment, cause or 
contribute to air pollution which may reasonably be anticipated to 
endanger public health or welfare;'' ``the presence of which in the 
ambient air results from numerous or diverse mobile or stationary 
sources;'' and ``for which * * * [the Administrator] plans to issue air 
quality criteria * * *'' Air quality criteria are intended to 
``accurately reflect the latest scientific knowledge useful in 
indicating the kind and extent of all identifiable effects on public 
health or welfare which may be expected from the presence of [a] 
pollutant in the ambient air * * *'' (42 U.S.C. 7408(b)). Under section 
109 (42 U.S.C. 7409), EPA establishes primary (health-based) and 
secondary (welfare-based) NAAQS for pollutants for which air quality 
criteria are issued. Section 109(d) requires periodic review and, if 
appropriate, revision of existing air quality criteria. The revised air 
quality criteria reflect advances in scientific knowledge on the 
effects of the pollutant on public health or welfare. The EPA is also 
required to periodically review and revise the NAAQS, if appropriate, 
based on the revised criteria. Section 109(d)(2) requires that an 
independent scientific review committee ``shall complete a review of 
the criteria * * * and the national primary and secondary ambient air 
quality standards * * * and shall recommend to the Administrator any 
new * * * standards and revisions of existing criteria and standards as 
may be appropriate * * *.'' Since the early 1980s, this independent 
review function has been performed by the Clean Air Scientific Advisory 
Committee (CASAC).
    Presently, EPA is reviewing the NAAQS for ozone. Key components of 
this review include a quantitative population exposure analysis and 
health risk assessment and a quantitative ecosystem exposure and 
welfare risk analysis. OAQPS has developed Risk and Assessment Plans 
(REA Plans) for Ozone Health Risk and Exposure and Ozone Welfare Risk 
and Exposure which include a discussion of the scope, approaches, and 
methods that staff is planning to use in conducting the exposure 
analysis and health and welfare risk assessment. The draft REA Plans 
and final IRP document announced today have been developed as part of 
the planning phase for the review. These documents will be available on 
the EPA's Technology Transfer Network (TTN) Web site at https://www.epa.gov/ttn/naaqs/standards/ozone/s_o3_index.html in the 
``Documents for Review Initiated in 2008'' section under ``Planning 
Documents.''
    The REA Plans are being made available for consultation with CASAC 
and for public comment. Comments

[[Page 23757]]

should be submitted to the docket, as described above, by June 27, 
2011. The CASAC consultation on these planning documents is scheduled 
for May 19-20, 2011. A separate Federal Register notice will provide 
details about this meeting and the process for participation.

    Dated: April 25, 2011.
Mary Henigin,
Acting Director, Office of Air Quality Planning and Standards.
[FR Doc. 2011-10340 Filed 4-27-11; 8:45 am]
BILLING CODE 6560-50-P
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