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[Federal Register Volume 81, Number 64 (Monday, April 4, 2016)]
[Proposed Rules]
[Pages 19097-19098]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-07486]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R06-OAR-2015-0189; FRL-9944-42-Region 6]

Promulgation of Implementation Plans; Arkansas; Regional Haze and 
Interstate Visibility Transport Federal Implementation Plan; Reopening 
of Comment Period and Notice of Availability

AGENCY: Environmental Protection Agency (EPA).

[[Page 19098]]

ACTION: Proposed rule; reopening of comment period; availability of 
supplemental information.

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SUMMARY: The Environmental Protection Agency (EPA) is reopening the 
comment period for a proposed rule to establish a Clean Air Act (CAA) 
Federal Implementation Plan (FIP) to address regional haze and 
visibility transport requirements for the State of Arkansas. The 
reopening of the comment period is strictly limited to EPA's 
calculations of revised RPGs for Arkansas' Class I areas, which are 
presented in a supporting document being made available at this time in 
the docket. EPA is reopening the public comment period until May 4, 
2016.

DATES: The comment period for the proposed rule published on April 8, 
2015 (80 FR 18944), extended at 80 FR 24872 (July 15, 2015), and 
reopened at 80 FR 43661 (July 23, 2015), is again reopened. Written 
comments must be received on or before May 4, 2016.

ADDRESSES: Submit your comments, identified by Docket No. EPA-R06-OAR-
2015-0189, at http://www.regulations.gov or via email to 
donaldson.guy@epa.gov. Follow the online instructions for submitting 
comments. Once submitted, comments cannot be edited or removed from 
Regulations.gov. 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 Dayana Medina, 214-665-
7241, medina.dayana@epa.gov. 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/commenting-epa-dockets.
    Docket: The index to the docket for this action is available 
electronically at www.regulations.gov and in hard copy at the EPA 
Region 6, 1445 Ross Avenue, Suite 700, Dallas, Texas. While all 
documents in the docket are listed in the index, some information may 
be publicly available only at the hard copy location (e.g., copyrighted 
material), and some may not be publicly available at either location 
(e.g., CBI).

FOR FURTHER INFORMATION CONTACT: Dayana Medina, (214) 665-7241; 
medina.dayana@epa.gov. To inspect the hard copy materials, please 
schedule an appointment with Dayana Medina or Mr. Bill Deese at 214-
665-7253.

SUPPLEMENTARY INFORMATION: On April 8, 2015, we published in the 
Federal Register a proposal to establish a FIP for the State of 
Arkansas addressing regional haze and visibility transport (80 FR 
18944). The proposed FIP includes emission limits for sources in 
Arkansas. Comments on the proposed rule were required to be received by 
May 16, 2015. On May 1, 2015, we extended the comment period to July 
15, 2015 (80 FR 24872). On July 23, 2015, we reopened the comment 
period until August 7, 2015 (80 FR 43661), in response to a request we 
received for an extension of the comment period.
    We are announcing the availability in the docket of supplemental 
information we relied on in our Arkansas FIP proposal, but which was 
inadvertently omitted from the docket at the time we proposed the FIP. 
In our proposed rule published on April 8, 2015, we proposed revised 
RPGs for the 20% worst days for Arkansas' Class I areas, the Caney 
Creek and Upper Buffalo Wilderness Areas (80 FR at 18998). Our revised 
RPGs and our methodology for calculating the revised RPGs were 
discussed in detail in our proposal and in our technical support 
documentation,\1\ which was made available in the docket when the 
proposed rule was published on April 8, 2015. However, a spreadsheet 
containing the actual calculations of our revised RPGs was 
inadvertently omitted from the docket. Therefore, the reopening of the 
comment period is strictly limited to our calculations of the revised 
RPGs, as presented in the spreadsheet we are making available at this 
time in the docket. The reopening of the comment period does not apply 
to our general methodology for calculating the revised RPGs, to the 
numerical values of the revised RPGs, or to any other aspects or 
portions of our proposed rule, for which we have previously provided 
opportunity for public comment. This action will allow interested 
persons time to prepare and submit comments on our calculations of the 
revised RPGs, as presented in the spreadsheet that we are making 
available in the docket at this time.
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    \1\ See ``Technical Support Document for EPA's Proposed Action 
on the Arkansas Regional Haze Federal Implementation Plan'' at page 
147.
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List of Subjects in 40 CFR Part 52

    Environmental protection, Air pollution control, Best available 
control technology, Incorporation by reference, Intergovernmental 
relations, Interstate transport of pollution, Nitrogen dioxide, Ozone, 
Particulate matter, Reporting and recordkeeping, requirements, Sulfur 
dioxides, Regional haze, Visibility.

    Authority: 42 U.S.C. 7401 et seq.

    Dated: March 23, 2016.
Lisa Price,
Acting Director, Multimedia Planning and Permitting Division, Region 6.
[FR Doc. 2016-07486 Filed 4-1-16; 8:45 am]
 BILLING CODE 6560-50-P
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