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                -                       the agency or agencies that issued and signed a document                    
                -                       the number of the CFR title and the number of each part                      the document amends, proposes to amend, or is directly                      related to                    
                -                       the agency docket number / agency internal file number                    
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###### Environmental Protection Agency

          - 40 CFR Part 52 
          - [EPA-R04-OAR-2006-0787-200621(b); FRL-8297-3] 

# AGENCY:

Environmental Protection Agency (EPA). 

# ACTION:

Proposed rule.

# SUMMARY:

                        EPA is proposing to approve revisions to the State Implementation Plan (SIP) submitted by the State of Tennessee, through Tennessee Department of Environment and Conservation (TDEC), on August 18, 1999 and July 16, 2001. The revisions pertain to the Knox County portion of the Tennessee SIP and include changes to the Knox County Air Quality Regulations Section 51.0—Standards for Cement Kilns. These standards set nitrogen oxides (NOX) emissions control, compliance demonstration, certification, record keeping, and reporting requirements for Portland cement kilns in the County. The revisions were initially reviewed by TDEC, which found them to be as                               ( print page 18427)                            stringent as the State's requirements. After review of this submittal, EPA concurs with TDEC's finding. The proposed changes are part of the Knox County strategy to meet the national ambient air quality standards by reducing the emissions of NOX, a precursor of ozone formation. Because of the harmful health effects of ozone, EPA limits the amount of volatile organic compounds and NOX                         that can be released into the atmosphere. This action is being taken pursuant to section 110 of the Clean Air Act. In the Final Rules Section of this                         **Federal Register**                        , the EPA is approving the State's SIP revisions 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 significant, material, and 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 rule. EPA will not institute a second comment period on this document. Any parties interested in commenting on this document should do so at this time.                     

# DATES:

Written comments must be received on or before May 14, 2007. 

# ADDRESSES:

Submit your comments, identified by Docket ID No. EPA-R04-OAR-2006-0787 by one of the following methods: 

                        1.                         *www.regulations.gov:*                         Follow the online instructions for submitting comments.                     

                        2.                         *E-mail: louis.egide@epa.gov.*

                        3.                         *Fax:*                         (404) 562-9019.                     

                        4.                         *Mail:*                         “EPA-R04-OAR-2006-0787,” Regulatory Development Section, Air Planning Branch, Air, Pesticides and Toxics Management Division, U.S. Environmental Protection Agency, Region 4, 61 Forsyth Street, SW., Atlanta, Georgia 30303-8960.                     

                        5.                         *Hand Delivery or Courier:*                         Dr. Egide Louis, Regulatory Development Section, Air Planning Branch, Air, Pesticides and Toxics Management Division, 12th floor, U.S. Environmental Protection Agency, Region 4, 61 Forsyth Street, SW., Atlanta, Georgia 30303-8960. Such deliveries are only accepted during the Regional Office's normal hours of operation. The Regional Office's 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:

                        Dr. Egide Louis, Regulatory Development Section, Air Planning Branch, Air, Pesticides and Toxics Management Division, U.S. Environmental Protection Agency, Region 4, 61 Forsyth Street, SW., Atlanta, Georgia 30303-8960. The telephone number is (404) 562-9240. Dr. Louis can also be reached via electronic mail at                         *louis.egide@epa.gov.*

# SUPPLEMENTARY INFORMATION:

                    For additional information see the direct final rule which is published in the Rules Section of this                     **Federal Register**                    .                 

Dated: March 29, 2007. 

J.I. Palmer,

Regional Administrator, Region 4.

 [FR Doc. E7-6718 Filed 4-11-07; 8:45 am] 

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