Document ID: EPA-R08-OAR-2017-0339-0001
Agency: epa
Document Type: Proposed Rule
Title: Air Quality State Implementation Plans; Approvals and Promulgations: Montana Second 10-Year Carbon Monoxide Maintenance Plan for Missoula
Posted Date: 2017-09-14T04:00Z

[Federal Register Volume 82, Number 177 (Thursday, September 14, 2017)]
[Proposed Rules]
[Pages 43208-43209]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-19462]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R08-OAR-2017-0339; FRL-9967-65-Region 8]

Montana Second 10-Year Carbon Monoxide Maintenance Plan for 
Missoula

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The Environmental Protection Agency (EPA) is proposing to 
approve a State Implementation Plan (SIP) revision submitted to the EPA 
by the State of Montana. On September 19, 2016, the Governor of 
Montana's designee submitted a Clean Air Act (CAA) section 175A(b) 
second 10-year limited maintenance plan for the Missoula area for the 
carbon monoxide (CO) National Ambient Air Quality Standard (NAAQS). 
This limited maintenance plan addresses maintenance of the CO NAAQS for 
a second 10-year period beyond the original redesignation. This action 
is being taken under sections 110 and 175A of the CAA.

DATES: Comments must be received on or before October 16, 2017.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R08-
OAR-2017-0339 at https://www.regulations.gov. Follow the online 
instructions for submitting comments. Once submitted, comments cannot 
be edited or removed from www.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).
    Docket: All documents in the docket are listed in the 
www.regulations.gov index. Publicly available docket materials are 
available either electronically in www.regulations.gov or in hard copy 
at the Air Program, Environmental Protection Agency (EPA), Region 8, 
1595 Wynkoop Street, Denver, Colorado 80202-1129. The EPA requests that 
you contact the individual listed in the FOR FURTHER INFORMATION 
CONTACT section to view the hard copy of the docket. You may view the 
hard copy of the docket Monday through Friday, 8:00 a.m. to 4:00 p.m., 
excluding federal holidays. For additional submission methods, 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.

FOR FURTHER INFORMATION CONTACT: Adam Clark, Air Program, EPA, Region 
8, Mailcode 8P-AR, 1595 Wynkoop, Denver, Colorado 80202-1129, (303) 
312-7104, clark.adam@epa.gov.

SUPPLEMENTARY INFORMATION: In the ``Rules and Regulations'' section of 
today's Federal Register, the EPA is approving Montana's SIP revision 
as a direct final rule without prior proposal because the Agency views 
this as a noncontroversial SIP revision and anticipates no adverse 
comments. A detailed rationale for the approval is set forth in the 
preamble to the direct final rule. If the EPA receives no adverse 
comments, the EPA will not take further action on this proposed rule. 
If the EPA receives adverse comments, the EPA will withdraw the direct 
final rule and it will not take effect. The EPA will address all public 
comments in a subsequent final rule based on this proposed rule. The 
EPA will not institute a second comment period on this action. Any 
parties interested in commenting must do so at this time. For 
additional information, see the direct final action, with the same 
title, that is located in the ``Rules and Regulations'' section of this 
issue of the Federal Register.

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

[[Page 43209]]

    Dated: August 31, 2017.
Debra H. Thomas,
Acting Regional Administrator, Region 8.
[FR Doc. 2017-19462 Filed 9-13-17; 8:45 am]
 BILLING CODE 6560-50-P