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[Federal Register: September 9, 2010 (Volume 75, Number 174)]
[Proposed Rules]               
[Page 54805-54806]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr09se10-20]                         

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R05-OAR-2010-0556; FRL-9198-1]

 
Approval and Promulgation of Air Quality Implementation Plans; 
Minnesota; Carbon Monoxide (CO) Limited Maintenance Plan for the Twin 
Cities Area

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: EPA is proposing to approve a request submitted by the 
Minnesota Pollution Control Agency (MPCA) on June 16, 2010, to revise 
the Minnesota State Implementation Plan (SIP) for carbon monoxide (CO) 
under the Clean Air Act (CAA). The State has submitted a limited 
maintenance plan for CO showing continued attainment of the CO National 
Ambient Air Quality Standard (NAAQS) in the Minneapolis-St. Paul (Twin 
Cities) area. The one hour CO NAAQS and eight hour CO NAAQS are 35 
parts per million (ppm), and 9 ppm, respectively. This limited 
maintenance plan satisfies section 175A of the CAA, and is in 
accordance with EPA's October 29, 1999, approval of the State's 
redesignation request and maintenance plan for the Twin Cities area. 
Additionally, this limited maintenance plan for CO satisfies the 
requirements contained in the October 6, 1995, EPA memorandum entitled 
``Limited Maintenance Plan Option for Nonclassifiable CO Nonattainment 
Areas.''

DATES: Comments must be received on or before October 12, 2010.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R05-
OAR-2010-0556, by one of the following methods:
    1. http://www.regulations.gov: Follow the on-line instructions for 
submitting comments.
    2. E-mail: bortzer.jay@epa.gov.
    3. Fax: (312) 692-2054.
    4. Mail: Jay Bortzer, Chief, Air Programs Branch (AR-18J), U.S. 
Environmental Protection Agency, 77 West Jackson Boulevard, Chicago, 
Illinois 60604.
    5. Hand Delivery: Jay Bortzer, Chief, 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.
    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: Andy Chang, Environmental Engineer, 
Air Planning and Maintenance Section, Air Programs Branch (AR-18J), 
Environmental Protection Agency, Region 5, 77 West Jackson Boulevard, 
Chicago, Illinois 60604, (312) 886-0258, chang.andy@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

[[Page 54806]]

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 26, 2010.
Bharat Mathur,
Acting Regional Administrator, Region 5.
[FR Doc. 2010-22339 Filed 9-8-10; 8:45 am]
BILLING CODE 6560-50-P
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