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[Federal Register Volume 80, Number 161 (Thursday, August 20, 2015)]
[Proposed Rules]
[Pages 50590-50591]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-20529]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R05-OAR-2014-0660; FRL-9932-17-Region 5]

Air Plan Approval; Indiana; Alcoa BART

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The Environmental Protection Agency (EPA) is proposing to 
approve a revision to the Alcoa Best Available Retrofit Technology 
(BART) averaging time for nitrogen oxides (NOX) in the 
Indiana State Implementation Plan (SIP). On July 23, 2014, the Indiana 
Department of Environmental Management (IDEM) submitted to EPA a 
revision to the daily NOX emissions limits, changing from a 
rolling 24-hour average to a 24-hour daily average. IDEM provided an 
analysis showing that no significant increase in emissions will occur 
as a result of this change. EPA is approving this SIP revision because 
it will not interfere with attainment or maintenance of the National 
Ambient Air Quality Standard (NAAQS).

DATES: Comments must be received on or before September 21, 2015.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R05-
OAR-2014-0660, by one of the following methods:
    1. www.regulations.gov: Follow the on-line instructions for 
submitting comments.
    2. Email: blakley.pamela@epa.gov.
    3. Fax: (312) 692-2450.
    4. Mail: Pamela Blakley, Chief, Control Strategies Section, Air 
Programs Branch (AR-18J), U.S. Environmental Protection Agency, 77 West 
Jackson Boulevard, Chicago, Illinois 60604.
    5. Hand Delivery: Pamela Blakley, 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

[[Page 50591]]

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.
    Please see the direct final rule which is located in the Final 
Rules section of this Federal Register for detailed instructions on how 
to submit comments.

FOR FURTHER INFORMATION CONTACT: Carolyn Persoon, Environmental 
Engineer, Control Strategies Section, Air Programs Branch (AR-18J), 
Environmental Protection Agency, Region 5, 77 West Jackson Boulevard, 
Chicago, Illinois 60604, (312) 353-8290, persoon.carolyn@epa.gov.

SUPPLEMENTARY INFORMATION: In the Final Rules section of this Federal 
Register, EPA is approving the state's SIP submittal as a direct final 
rule without prior proposal because the Agency views this as a 
noncontroversial submittal and anticipates no adverse comments. A 
detailed rationale for the approval is set forth in the direct final 
rule. If no adverse comments are received in response to this rule, no 
further activity is contemplated. If EPA receives adverse comments, the 
direct final rule will be withdrawn and all public comments received 
will be addressed in a subsequent final rule based on this proposed 
rule. EPA will not institute a second comment period. Any parties 
interested in commenting on this action should do so at this time. 
Please note that if EPA receives adverse comment on an amendment, 
paragraph, or section of this rule and if that provision may be severed 
from the remainder of the rule, EPA may adopt as final those provisions 
of the rule that are not the subject of an adverse comment. For 
additional information, see the direct final rule which is located in 
the Rules section of this Federal Register.

    Dated: August 3, 2015.
Susan Hedman,
Regional Administrator, Region 5.
[FR Doc. 2015-20529 Filed 8-19-15; 8:45 am]
BILLING CODE 6560-50-P
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