E6-22477. Approval and Promulgation of Implementation Plans; Tennessee: Approval of Revisions to the Knox County Portion of the Tennessee State Implementation Plan

AGENCY:

Environmental Protection Agency (EPA).

ACTION:

Proposed rule.

SUMMARY:

EPA is proposing to approve revisions to the Tennessee State Implementation Plan (SIP) submitted by the State of Tennessee, through Tennessee Department of Environment and Conservation, on January 20, 2006. The revisions pertain to the Knox County portion of the Tennessee SIP and include changes to the Knox County Air Quality Regulations Section 46.0—“Regulation of Volatile Organic Compounds.” The changes were made in response to changes made by EPA to corresponding federal law. The change involves the addition of four compounds to the list of compounds excluded from the definition of volatile organic compounds on the basis that they make a negligible contribution to ozone formation. 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 If EPA receives adverse comments, the direct final rule will be withdrawn and all public comments received will be addressed in a subsequent final rule based on this proposed rule.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 February 5, 2007.

ADDRESSES:

Submit your comments, identified by Docket ID No. EPA-R04-OAR-2006-0577 by one of the following methods:

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

2. E-mail: [e-mail].

3. Fax: [phone].

4. Mail: “EPA-R04-OAR-2006-0577,” 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, 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 to 4:30, 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 [phone]. Dr. Louis can also be reached via electronic mail at [e-mail].

SUPPLEMENTARY INFORMATION:

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

Dated: December 20, 2006.

A. Stanley Meiburg,

Acting Regional Administrator, Region 4.