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###### Environmental Protection Agency

          - 40 CFR Part 52
          - [EPA-R05-OAR-2006-0003; FRL-8696-4]

# AGENCY:

Environmental Protection Agency (EPA).

# ACTION:

Proposed rule.

# SUMMARY:

EPA is proposing to approve a revision to the Illinois State Implementation Plan (SIP) for ozone. The state is incorporating revisions EPA made to its definition of volatile organic compound (VOC). This SIP revision adds one compound to the list of compounds that are exempt from being considered a VOC. This is because it was determined that the listed compound does not contribute to ozone formation.

# DATES:

Comments must be received on or before September 3, 2008.

# ADDRESSES:

Submit your comments, identified by Docket ID No. EPA-R05-OAR-2006-0003, by one of the following methods:

                        1.                         *www.regulations.gov:*                         Follow the on-line instructions for submitting comments.                    

                        2.                         *E-mail: mooney.john@epa.gov*.                    

                        3.                         *Fax:*                         (312) 886-5824.                    

                        4.                         *Mail:*                         John M. Mooney, Chief, Criteria Pollutant Section, Air Programs Branch (AR-18J), U.S. Environmental Protection Agency, 77 West Jackson Boulevard, Chicago, Illinois 60604.                    

                        5.                         *Hand Delivery:*                         John M. Mooney, Chief, Criteria Pollutant 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 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 Rules section of this                         **Federal Register**                         for detailed instructions on how to submit comments.                    

# FOR FURTHER INFORMATION CONTACT:

                        Matt Rau, Environmental Engineer, Criteria Pollutant Section, Air Programs Branch (AR-18J), Environmental Protection Agency, Region 5, 77 West Jackson Boulevard, Chicago, Illinois 60604, (312) 886-6524,                         *rau.matthew@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: July 14, 2008.

Walter W. Kovalick Jr.,

Acting Regional Administrator, Region 5.

 [FR Doc. E8-17698 Filed 8-1-08; 8:45 am]

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