E6-18843. Approval and Promulgation of Implementation Plans; State of Iowa

AGENCY:

Environmental Protection Agency (EPA).

ACTION:

Proposed rule.

SUMMARY:

EPA proposes to approve the State Implementation Plan (SIP) revision submitted by the state of Iowa. This revision proposes updates to Code of Federal Regulation (CFR) amendment dates, makes a clarification to the state air quality rules for laundry activities listed under construction permit exemptions, and adopts American Meteorological Society/Environmental Protection Agency Regulatory Model (AERMOD).

The proposed SIP revisions are necessary for consistency with Federal regulations.

DATES:

Comments on this proposed action must be received in writing by December 8, 2006.

ADDRESSES:

Submit your comments, identified by Docket ID No. EPA-R07-OAR-2006-0836 by one of the following methods:

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

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

3. Mail: Heather Hamilton, Environmental Protection Agency, Air Planning and Development Branch, 901 North 5th Street, Kansas City, KS 66101.

4. Hand Delivery or Courier. Deliver your comments to: Heather Hamilton, Environmental Protection Agency, Air Planning and Development Branch, 901 North 5th Street, Kansas City, KS 66101. 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 to 4:30, excluding legal 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:

Heather Hamilton at [phone], or by e-mail at [e-mail].

SUPPLEMENTARY INFORMATION:

In the final rules section of the Federal Register, EPA is approving the state's revision to the SIP 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 If EPA receives relevant adverse comments, the direct final rule will be withdrawn and all public comments received will be addressed in a subsequent final rule based on this proposed action.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: October 31, 2006.

John B. Askew,

Regional Administrator, Region 7.