E8-8860. Approval and Promulgation of Air Quality Implementation Plans; Whitefish PM10

AGENCY:

Environmental Protection Agency (EPA).

ACTION:

Proposed rule

SUMMARY:

EPA is proposing to approve State Implementation Plan (SIP) revisions submitted by the Governor of Montana on June 26, 1997, and June 13, 2000. (Portions of the June 26, 1997 submittal were withdrawn by the Governor of Montana on February 8, 1999). These revisions contain an inventory of emissions for Whitefish and establish and require continuation of all control measures adopted and implemented for reductions of particulate aerodynamic diameter less than or equal to 10 micrometers (PM₁₀) in order to attain the PM₁₀ National Ambient Air Quality Standards (NAAQS) in Whitefish. Using the PM₁₀ clean data areas approach, we are proposing to approve the control measures and the emissions inventory that were submitted as part of the PM₁₀ nonattainment area SIP for Whitefish. This action is being taken under section 110 of the Clean Air Act (CAA or Act).

EPA is approving the State's SIP revision as a direct final rule without prior proposal because the Agency views this as a noncontroversial SIP revision and anticipates no adverse comments. A detailed rationale for the approval is set forth in the preamble to the direct final rule. If EPA receives no adverse comments, EPA will not take further action on this proposed rule. If EPA receives adverse comments, EPA will withdraw the direct final rule and it will not take effect. EPA will address all public comments in a subsequent final rule based on this proposed rule. EPA will not institute a second comment period on this action. Any parties interested in commenting must 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.

DATES:

Written comments must be received on or before May 27, 2008.

ADDRESSES:

Submit your comments, identified by Docket ID No. EPA-R08-OAR-2007-0367, by one of the following methods:

• http://www.regulations.gov. Follow the on-line instructions for submitting comments.
• E-mail: [e-mail].
• Fax: [phone] (please alert the individual listed in the FOR FURTHER INFORMATION CONTACT if you are faxing comments).
• Mail: Director, Air and Radiation Program, Environmental Protection Agency (EPA), Region 8, Mailcode 8P-AR, 1595 Wynkoop Street, Denver, Colorado 80202-1129.
• Hand Delivery: Director, Air and Radiation Program, Environmental Protection Agency (EPA), Region 8, Mailcode 8P-AR, 1595 Wynkoop Street, Denver, Colorado 80202-1129. Such deliveries are only accepted Monday through Friday, 8 a.m. to 4:30 p.m., excluding Federal holidays. Special arrangements should be made for deliveries of boxed information.

Please see the direct final rule which is located in the Rules Section of this Federal Register for detailed instruction on how to submit comments.

FOR FURTHER INFORMATION CONTACT:

Laurel Dygowski, EPA Region 8, Mailcode 8P-AR, 1595 Wynkoop Street, Denver, Colorado 80202-1129; [phone]; [e-mail].

SUPPLEMENTARY INFORMATION:

See the information provided in the Direct Final action of the same title which is located in the Rules and Regulations Section of this Federal Register.

Authority: 42 U.S.C. 7401 et seq.

Dated: March 27, 2008.

Carol Rushin,

Acting Regional Administrator, Region 8.