[Federal Register Volume 76, Number 95 (Tuesday, May 17, 2011)]
[Proposed Rules]
[Pages 28393-28397]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2011-12061]



[[Page 28393]]

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

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R05-OAR-2010-0393; FRL-9307-2]


Proposed Approval of Air Quality Implementation Plan; Ohio and 
West Virginia; Determinations of Attainment of the 1997 Annual Fine 
Particle Standard for Four Nonattainment Areas

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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

SUMMARY: EPA is proposing to make two determinations regarding the fine 
particle (PM2.5) nonattainment areas of Cleveland-Akron, 
Columbus, Dayton-Springfield, and Steubenville-Weirton (hereafter 
referred to as ``Areas''). First, EPA is proposing to determine that 
these Areas have attained the 1997 annual average PM2.5 
National Ambient Air Quality Standard (NAAQS) under the Clean Air Act 
(CAA). This proposed determination of attainment is based upon 
complete, quality-assured, and certified ambient air monitoring data 
for the 2007-2009 period showing that the areas have monitored 
attainment of the annual PM2.5 NAAQS. EPA also evaluated 
incomplete data from this period from other monitors in the Cleveland-
Akron area, as well as complete preliminary quality-assured data 
available to date for 2010. EPA believes these data support the 
determination that the Areas have attained the 1997 annual 
PM2.5 NAAQS. If this proposed determination is made final, 
the requirements for these Areas to submit an attainment demonstration, 
associated reasonably available control measures (RACM) to include 
reasonably available control technology (RACT), a reasonable further 
progress (RFP) plan, contingency measures, and other planning State 
Implementation Plan (SIP) revisions related to attainment of the 1997 
annual PM2.5 NAAQS shall be suspended for so long as the 
Areas continue to attain the 1997 annual PM2.5 NAAQS. 
Second, EPA is also proposing to determine, based on quality-assured 
and certified monitoring data for the 2007-2009 monitoring period, that 
these Areas have attained the 1997 annual PM2.5 NAAQS by the 
applicable attainment date of April 5, 2010.

DATES: Comments must be received on or before June 16, 2011.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R05-
OAR-2010-0393, by one of the following methods:
    1. http://www.regulations.gov: Follow the on-line instructions for 
submitting comments.
    2. E-mail: [email protected].
    3. Fax: (312) 408-2279.
    4. Mail: Douglas Aburano, Chief, Control Strategies Section, Air 
Programs Branch (AR-18J), U.S. Environmental Protection Agency, 77 West 
Jackson Boulevard, Chicago, Illinois 60604.
    5. Hand Delivery: Douglas Aburano, Chief, Control Strategies 
Section, Air Programs Branch (AR-18J), U.S. Environmental Protection 
Agency, 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 No. EPA-R05-OAR-
2010-0393. 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, any form of encryption, and be free of 
any defects or viruses. For additional instructions on submitting 
comments, go to Section I of the SUPPLEMENTARY INFORMATION section of 
this document.
    Docket: All documents in the docket are listed in the http://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 http://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., Monday through Friday, excluding Federal 
holidays. We recommend that you telephone Carolyn Persoon, 
Environmental Engineer, at (312) 353-8290, before visiting the Region 5 
office.

FOR FURTHER INFORMATION CONTACT: Region 5, Carolyn Persoon, 
Environmental Engineer, Control Strategies Section, Air Programs Branch 
(AR-18J), U.S. Environmental Protection Agency, Region 5, 77 West 
Jackson Boulevard, Chicago, Illinois 60604, (312) 353-8290, 
[email protected]. Region 3, Irene Shandruk, Office of Air 
Program Planning (3AP30), U.S. Environmental Protection Agency, Region 
3, 1650 Arch Street, Philadelphia, PA 19103-2029, (215) 814-2166, 
[email protected].

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 actions is EPA proposing?
II. What is the background of these actions?
III. What is EPA's analysis of the relevant air quality data?
 IV. What are the effects of these actions?
V. Statutory and Executive Order Reviews

I. What actions Is EPA proposing?

    In accordance with section 179(c) of the CAA, 42 U.S.C. 7509(c) and 
40 CFR 51.1004(c), EPA is proposing to determine that three Ohio 
nonattainment areas (the Cleveland-Akron, the Columbus, and the Dayton-
Springfield areas) and one Ohio-West Virginia bi-state area (the 
Steubenville-Weirton area) have attained the 1997 annual 
PM2.5 NAAQS. This proposed determination is based upon 
complete, quality-assured, and certified ambient air monitoring data 
for the 2007-2009 monitoring period that show these Areas have 
monitored attainment of the 1997 annual PM2.5 NAAQS. 
Complete

[[Page 28394]]

preliminary quality-assured data sets available for 2010 are consistent 
with continued attainment, as well as data from sites in the Cleveland-
Akron area that were not considered complete, but that support 
attainment. EPA is also proposing to determine, in accordance with 
EPA's PM2.5 Implementation Rule of April 25, 2007 (72 FR 
20664), that these Areas have attained the 1997 annual PM2.5 
NAAQS by the applicable attainment date of April 5, 2010.

II. What is the background for these actions?

    On July 18, 1997 (62 FR 36852), EPA established an annual 
PM2.5 NAAQS at 15.0 micrograms per cubic meter ([mu]g/m\3\) 
based on a three-year average of annual mean PM2.5 
concentrations. At that time, EPA also established a 24-hour standard 
of 65 [mu]g/m\3\. (Today's action does not address the 24-hour 
standard.) See 40 CFR 50.7. On January 5, 2005 (70 FR 944), EPA 
published its air quality designations and classifications for the 1997 
PM2.5 NAAQS based upon air quality monitoring data from 
those monitors for calendar years 2001-2003. These designations became 
effective on April 5, 2005. The three areas in Ohio and the one bi-
state area in Ohio and West Virginia were designated nonattainment for 
the 1997 PM2.5 NAAQS. See 40 CFR 81.336 (Ohio) and 40 CFR 
81.349 (West Virginia).
    On October 17, 2006 (71 FR 61144), EPA retained the 1997 annual 
PM2.5 NAAQS at 15.0 [mu]g/m\3\ based on a three-year average 
of annual mean PM2.5 concentrations, and promulgated a 24-
hour standard of 35 [mu]g/m\3\ based on a three-year average of the 
98th percentile of 24-hour concentrations.
    In response to legal challenges to the annual standards promulgated 
in 2006, the U.S. Court of Appeals for the District of Columbia Circuit 
(DC Circuit) remanded these standards to EPA for further consideration. 
See American Farm Bureau Federation and National Pork Producers 
Council, et al. v. EPA, 559 F.3d 512 (DC Cir. 2009). However, given 
that the 1997 and 2006 annual standards are essentially identical, 
attainment of the 1997 annual standards would also indicate attainment 
of the remanded 2006 annual standards.
    On April 25, 2007 (72 FR 20664), EPA promulgated its 
PM2.5 implementation rule, codified at 40 CFR part 51, 
subpart Z, in which the Agency provided guidance for state and Tribal 
plans to implement the 1997 PM2.5 standards. This rule, at 
40 CFR 51.1004(c), specifies some of the regulatory consequences of 
attaining the standards, as discussed later.

III. What is EPA's analysis of the relevant air quality data?

    Today's rulemaking assesses whether (1) the Cleveland-Akron, 
Columbus, Dayton-Springfield, and Steubenville-Weirton areas have 
attained the 1997 annual PM2.5 standard, based on the most 
recent three years of quality-assured data, and (2) whether the Areas 
attained the 1997 annual PM2.5 NAAQS by the applicable 
attainment date of April 5, 2010.
    Under EPA's regulations at 40 CFR 50.7, the annual primary and 
secondary PM2.5 standards are met when the annual arithmetic 
mean concentration, as determined in accordance with 40 CFR Part 50, 
appendix N, is less than or equal to 15.0 [micro]g/m\3\ at all relevant 
monitoring sites in the area.
    EPA has reviewed the ambient air quality monitoring data in the 
Cleveland-Akron, Columbus, Dayton-Springfield, and Steubenville-Weirton 
areas for PM2.5, consistent with the requirements contained 
at 40 CFR part 50. EPA's review focused on data recorded in the EPA Air 
Quality System (AQS) database for the Cleveland-Akron, Columbus, 
Dayton-Springfield, and Steubenville-Weirton areas PM2.5 
nonattainment area from 2007 to 2009, and considered supplemental data 
sets that were incomplete due to the low capture rates as well as 
complete, quality assured but not certified data for 2010.
    The Cleveland-Akron area had eleven monitors located in Cuyahoga, 
Lorain, Medina, Summit, and Portage Counties that reported design 
values from 2007-2009 for PM2.5 that ranged from 11.4 to 
14.4 [mu]g/m\3\.
    The Columbus area had three monitors all located in Franklin County 
that reported a design value range of 11.7 to 13.0 [mu]g/m\3\ for the 
2007-2009 time period.
    The Dayton-Springfield area has three monitors, with one monitor in 
each of Clark, Greene, and Montgomery Counties. These monitors measured 
a range of 2007-2009 design values from 12.1 to 13.7 [mu]g/m\3\ with 
Montgomery reporting the highest PM2.5 design value.
    The Steubenville-Weirton area, in Ohio and West Virginia, has five 
monitoring stations, including two in Jefferson County, OH, two in 
Brooke County, West Virginia, and one in Hancock County, West Virginia. 
The range of design values for the Steubenville-Weirton area for 2007-
2009 was 13.6 to 14.4 [mu]g/m\3\, below the current annual 
PM2.5 standard. We have examined data from the entire area, 
including monitored data from both Ohio and West Virginia.
    Table 1 shows the 2007 to 2009 design values (i.e., the three-year 
average of annual mean PM2.5 concentrations) for the 1997 
annual PM2.5 NAAQS for the Cleveland-Akron, Columbus, 
Dayton-Springfield, and Steubenville-Weirton areas for monitors with 
complete data for that period. Additionally, design values for the 
2008-2010 period, using complete and quality-assured but not certified 
data for 2010, are also shown in Table 1, as supplementary information 
solely for the purposes of showing that all four areas are maintaining 
the current standard. All data values are expressed in micrograms per 
meter cubed.

 Table 1--Annual PM2.5 Design Values for Ohio (Cleveland-Akron, Columbus, Dayton-Springfield, and Steubenville-
                    Weirton) Area Monitors With Complete Data for 2007 to 2009 in [mu]g/m\3\
----------------------------------------------------------------------------------------------------------------
                                                                                              Preliminary annual
                                                                             Annual design    design value 2008-
       State                  County                    Monitor             value 2007-2009    2010 ([mu]g/m\3\)
                                                                             ([mu]g/m\3\)
----------------------------------------------------------------------------------------------------------------
                                                 Cleveland-Akron
----------------------------------------------------------------------------------------------------------------
OH................  Cuyahoga.................  39-035-0034..............               11.6                10.7
                                               39-035-0038..............               14.4                13.6
                                               39-035-0045..............               13.6                12.9
                                               39-035-0060..............               14.1                13.4
                                               39-035-0065..............               14.3                13.4
                                               39-035-1002..............               12.1                11.4
                    Lorain...................  39-093-3002..............               11.4                10.6

[[Page 28395]]

 
                    Medina...................  39-103-0003..............               11.8                11.1
                    Portage..................  39-133-0002..............               12.3                11.5
                    Summit...................  39-153-0017..............               13.7                13.2
                                               39-153-0023..............               12.7                12.3
----------------------------------------------------------------------------------------------------------------
                                                    Columbus
----------------------------------------------------------------------------------------------------------------
OH................  Franklin.................  39-049-0024..............               13.0                12.5
                                               39-049-0025..............               12.9                12.1
                                               39-049-0081..............               11.7                11.2
----------------------------------------------------------------------------------------------------------------
                                               Dayton-Springfield
----------------------------------------------------------------------------------------------------------------
OH................  Clark....................  39-023-0005..............               13.2   ..................
                    Greene...................  39-057-0005..............               12.1                12.1
                    Montgomery...............  39-113-0032..............               13.7                13.2
----------------------------------------------------------------------------------------------------------------
                                              Steubenville-Weirton
----------------------------------------------------------------------------------------------------------------
OH................  Jefferson................  39-081-0017..............               14.2                13.0
                                               39-081-1001..............               13.6                12.7
WV................  Brooke...................  54-009-0005..............               14.4                13.7
                                               54-009-0011..............               14.0                13.1
                    Hancock..................  59-029-1004..............               13.4                12.4
----------------------------------------------------------------------------------------------------------------

    As Table 1 shows, across the four areas, there were twenty-one 
monitoring sites with complete data for 2007 to 2009. Data are 
considered to be sufficient for comparison to the NAAQS if three 
consecutive complete years of data exist. A complete year of air 
quality data comprises four calendar quarters, with each quarter 
containing data from at least 75% capture of the scheduled sampling 
days. Data that does not meet the 75% capture has been analyzed by EPA 
with substitution of conservative values to determine that some sites 
not meeting capture rates are still sufficient to show attainment. Ohio 
has also submitted similar data substitutions to demonstrate that sites 
with less than 75% capture rates are still attaining even with the 
highest concentration from that specific monitor substituted for 
missing data. See 40 CFR Part 58, appendix D for network design 
criteria. EPA has approved the monitoring networks for these four areas 
as adequate to evaluate the air quality of these areas, and so these 
twenty-one monitoring sites with complete data provide an adequate 
basis for EPA to determine whether the areas have attained the NAAQS. 
EPA concludes that the Cleveland-Akron, Columbus, Dayton-Springfield, 
and Steubenville-Weirton areas have attained the 1997 annual 
PM2.5 NAAQS based on its evaluation of complete quality-
assured data from the relevant monitoring sites for the 2007-2009 
monitoring period.
    Incomplete data from additional monitoring sites in the Cleveland-
Akron area also support EPA's determination that the area attains the 
1997 annual PM2.5 NAAQS. Two monitors located in Lake County 
did not record complete data for the three-year 2007-2009 monitoring 
period. Pertinent data from these sites are shown in Table 2. One 
monitor (39-085-3002) was closed at the end of 2008 due to demolition 
at the site, and the other monitor (39-085-0007) then began operation 
at the beginning of 2009. Since both monitors were not capturing data 
for the entire span of 2007-2009, their data sets were considered 
incomplete. As shown in this table, although site 39-085-3002 did not 
have complete data for 2007 to 2009, the site's design value calculated 
from 2006-2008 was attaining, and the average concentration from 2007 
to 2008 support the conclusion that this location is attaining. Table 2 
also includes site 39-085-0007 that started operation only recently; 
this site did not measure concentrations before 2009, but the average 
concentration for 2009 was 10.4 [mu]g/m\3\, and the average 
concentration for 2010 was 10.5 [mu]g/m\3\.

          Table 2--PM2.5 Design Values for Lake County Area Sites With Incomplete Data in 2007 to 2009
----------------------------------------------------------------------------------------------------------------
                                                                                            Most recent complete
                                                          Average                          design value  ([mu]g/
   State           County              Monitor         concentration   Dates of operation           m3)
                                                       for 2007-2009                      ----------------------
                                                        ([mu]g/m3)                          Value       Years
----------------------------------------------------------------------------------------------------------------
OH.........  Lake..............  39-085-0007.......             10.4   1/1/2009-present..  .......  ............
                                 39-085-3002.......             12.7   1/11/2006-12/31/       12.3     2006-2008
                                                                        2008.
----------------------------------------------------------------------------------------------------------------

    Data handling conventions and computations necessary for 
determining whether areas have met the PM2.5 NAAQS, 
including requirements for data completeness, are specified in appendix 
N of 40 CFR part 50. The use

[[Page 28396]]

of less than complete data is subject to the approval of EPA, which may 
consider factors such as monitoring site closures/moves, monitoring 
diligence and nearby concentrations in determining whether to use such 
data as set forth at 40 CFR part 50, appendix N Sec.  4.1(c). The 
monitors listed in Table 2 do not have complete data for the 2007-2009 
monitoring period. However, the historical certified data recorded at 
the monitors that were discontinued during this period and recent 
certified data recorded at monitors that started operation during the 
period provide additional support for EPA's proposed determination that 
the Cleveland-Akron area has attained the 1997 annual PM2.5 
NAAQS. EPA is also approving the use of these data for consideration in 
this determination because it finds that Ohio has exercised diligence 
in monitoring in the Cleveland-Akron area, and has worked cooperatively 
with EPA in evaluating and seeking approval for monitor closures and 
moves, and because these data provide useful additional evidence as to 
whether this area is attaining the standard.
    EPA's review of monitoring data from the 2007-2009 monitoring 
period supports EPA's determinations that the Cleveland-Akron, 
Columbus, Dayton-Springfield, and Steubenville-Weirton PM2.5 
nonattainment areas have: (1) Monitored attainment of the 
PM2.5 NAAQS for such period; and (2) attained the 
PM2.5 NAAQS by the attainment date of April 5, 2010. 
Additionally, the preliminary 2008-2010 monitoring data supports a 
finding that these Areas continue to meet the 1997 annual 
PM2.5 NAAQS.

IV. What are the effects of these actions?

    If EPA's proposed determination of attainment, based on the most 
recent three years of quality-assured data, is made final, under the 
provisions of the PM2.5 Implementation Rule (40 CFR 
51.1004(c)) the requirements for the Cleveland-Akron, Columbus, Dayton-
Springfield, and Steubenville-Weirton PM2.5 nonattainment 
areas to submit attainment demonstration, RACM (including RACT), an RFP 
plan, contingency measures, and other planning SIP revisions related to 
attainment of the 1997 annual PM2.5 NAAQS shall be suspended 
for so long as the Areas continue to attain the 1997 annual 
PM2.5 NAAQS.
    As discussed further, the proposed determination of attainment for 
the Cleveland-Akron, Columbus, Dayton-Springfield, and Steubenville-
Weirton PM2.5 nonattainment areas would, if finalized, (1) 
suspend the states' obligation for Ohio and West Virginia to submit the 
requirements listed above; (2) continue such suspension until such 
time, if any, that EPA subsequently determines that any monitor in the 
area has violated the 1997 annual PM2.5 NAAQS; and (3) be 
separate from any future designation determination or requirements for 
the Cleveland-Akron, Columbus, Dayton-Springfield, and Steubenville-
Weirton PM2.5 nonattainment areas based on the 2006 
PM2.5 NAAQS or future PM2.5 NAAQ revision.
    If this rulemaking is finalized and EPA subsequently determines, 
after notice-and-comment rulemaking in the Federal Register, that any 
of the Areas have violated the 1997 annual PM2.5 NAAQS, the 
basis for the suspension of the specific requirements, set forth at 40 
CFR section 51.1004(c), would no longer exist, and the States of Ohio 
and West Virginia (if applicable) would thereafter have to address the 
pertinent requirements.
    This proposed action is limited to the determinations that the air 
quality data show that the Cleveland-Akron, Columbus, Dayton-
Springfield, and Steubenville-Weirton PM2.5 nonattainment 
areas have monitored attainment of the 1997 annual PM2.5 
NAAQS, and have attained the PM2.5 NAAQS by the attainment 
date of April 5, 2010; neither determination would result in a 
redesignation of the Cleveland-Akron, Columbus, Dayton-Springfield, and 
Steubenville-Weirton PM2.5 nonattainment areas to the status 
of attainment of the 1997 annual PM2.5 NAAQS.
    This proposed action, if finalized, would not constitute a 
redesignation to attainment under CAA section 107(d)(3) of the CAA 
because EPA is not proposing to take action pursuant to CAA section 
107(d)(3) and the statutory prerequisites set forth in CAA section 
107(d)(3) have not yet been met. For example, EPA has not yet approved 
a maintenance plan for the areas as required under CAA section 175A, 
nor proposed a determination that the Cleveland-Akron, Columbus, 
Dayton-Springfield, and Steubenville-Weirton PM2.5 
nonattainment areas have met the other requirements for redesignation 
under the CAA.
    The designation status of the portions of the Cleveland-Akron, 
Columbus, Dayton-Springfield, and Steubenville-Weirton PM2.5 
nonattainment areas will remain nonattainment for the 1997 annual 
PM2.5 NAAQS until such time as EPA takes final rulemaking 
action to determine that such portions meet the CAA requirements for 
redesignation to attainment.
    In addition, if EPA's separate and independent proposed 
determination that these Areas have attained the 1997 annual 
PM2.5 standard by the applicable attainment date (April 5, 
2010), is finalized, EPA will have met its requirement pursuant to 
section 179(c)(1) of the CAA to make a determination based on the 
Areas' air quality data as of the attainment date whether the Areas 
attained the standard by that date.
    These two actions described above are proposed determinations 
regarding the Cleveland-Akron, Columbus, Dayton-Springfield, and 
Steubenville-Weirton areas' attainment only with respect to the 1997 
annual PM2.5 NAAQS. Today's actions do not address the 24-
hour PM2.5 NAAQS.
    EPA is soliciting comment on the issues discussed in this document. 
These comments will be considered before EPA takes final action. Please 
note that if EPA receives adverse comment on either of the proposed 
determinations described above and if that determination may be severed 
from the remainder of the final agency action, EPA may adopt as final 
those provisions of the final agency action that are not the subject of 
an adverse comment.

V. Statutory and Executive Order Reviews

    This action proposes to make attainment determinations based on air 
quality data and would, if finalized, result in the suspension of 
certain Federal requirements and would not impose any additional 
requirements. For that reason, this proposed action:
     Is not a ``significant regulatory action'' subject to 
review by the Office of Management and Budget under Executive Order 
12866 (58 FR 51735, October 4, 1993);
     Does not impose an information collection burden under the 
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
     Is certified as not having a significant economic impact 
on a substantial number of small entities under the Regulatory 
Flexibility Act (5 U.S.C. 601 et seq.);
     Does not contain any unfunded mandate or significantly or 
uniquely affect small governments, as described in the Unfunded 
Mandates Reform Act of 1995 (Pub. L. 104-4);
     Does not have Federalism implications as specified in 
Executive Order 13132 (64 FR 43255, August 10, 1999);
     Is not an economically significant regulatory action based 
on health or safety risks subject to Executive Order 13045 (62 FR 
19885, April 23, 1997);

[[Page 28397]]

     Is not a significant regulatory action subject to 
Executive Order 13211 (66 FR 28355, May 22, 2001);
     Is not subject to requirements of Section 12(d) of the 
National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 
note) because application of those requirements would be inconsistent 
with the Clean Air Act; and
     Does not provide EPA with the discretionary authority to 
address, as appropriate, disproportionate human health or environmental 
effects, using practicable and legally permissible methods, under 
Executive Order 12898 (59 FR 7629, February 16, 1994).
    In addition, these proposed PM2.5 NAAQS attainment 
determinations do not have Tribal implications as specified by 
Executive Order 13175 (65 FR 67249, November 9, 2000), because the SIP 
is not approved to apply in Indian country located in the State, and 
EPA notes that it will not impose substantial direct costs on Tribal 
governments or preempt Tribal law.

List of Subjects in 40 CFR Part 52

    Environmental protection, Air pollution control, Particulate 
matter, Reporting and recordkeeping requirements.

    Dated: May 3, 2011.
Susan Hedman,
Regional Administrator, Region 5.
    Dated: May 5, 2011.
W.C. Early,
Acting Regional Administrator, Region 3.
[FR Doc. 2011-12061 Filed 5-16-11; 8:45 am]
BILLING CODE 6560-50-P