
[Federal Register Volume 77, Number 183 (Thursday, September 20, 2012)]
[Proposed Rules]
[Page 58352]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-23133]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R07-OAR-2012-0596; FRL 9731-2]


Approval and Promulgation of Implementation Plans; State of 
Missouri

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: EPA proposes to approve the State Implementation Plan (SIP) 
revision submitted by the state of Missouri on September 21, 2010. This 
revision proposes to amend the ambient air quality standards table to 
reflect revised National Ambient Air Quality Standards (NAAQS), update 
reference methods associated with the revised NAAQS, and update the 
breakpoint values for the Air Quality Index. These revisions would make 
Missouri's rules consistent with Federal regulations and improve the 
clarity of the rules.

DATES: Comments on this proposed action must be received in writing by 
October 22, 2012.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R07-
OAR-2012-0596, by mail to Amy Bhesania, Environmental Protection 
Agency, Air Planning and Development Branch, 901 North 5th Street, 
Kansas City, Kansas 66101. Comments may also be submitted 
electronically or through hand delivery/courier by following the 
detailed instructions in the ADDRESSES section of the direct final rule 
located in the rules section of this Federal Register.

FOR FURTHER INFORMATION CONTACT: Amy Bhesania at (913) 551-7147, or by 
email at bhesania.amy@epa.gov.

SUPPLEMENTARY INFORMATION: In the final rules section of the Federal 
Register, EPA is approving the state's SIP revision as a direct final 
rule without prior proposal because the Agency views this as a 
noncontroversial revision amendment and anticipates no relevant adverse 
comments to this action. A detailed rationale for the approval is set 
forth in the direct final rule. If no relevant adverse comments are 
received in response to this action, no further activity is 
contemplated in relation to this action. If EPA receives relevant 
adverse comments, the direct final rule will be withdrawn and all 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 action. EPA will not institute a second comment 
period on this action. Any parties interested in commenting on this 
action should do so at this time. Please note that if EPA receives 
adverse comment on part of this rule and if that part can be severed 
from the remainder of the rule, EPA may adopt as final those parts 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: September 11, 2012.
Karl Brooks,
Regional Administrator, Region 7.
[FR Doc. 2012-23133 Filed 9-19-12; 8:45 am]
BILLING CODE 6560-50-P


