Proposed Rules. Proposed rule

886 words·~4 min read·/register/2011/08/01/2011-19275

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BILLING CODE 9110-04-P ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [EPA-R03-OAR-2011-0471; FRL-9446-1] Approval and Promulgation of Air Quality Implementation Plans; Pennsylvania; Diesel-Powered Motor Vehicle Idling Act AGENCY: Environmental Protection Agency (EPA). ACTION: Proposed rule. SUMMARY: EPA proposes to approve the State Implementation Plan

(SIP)revision submitted by the Commonwealth of Pennsylvania for the purpose of incorporating the Commonwealth's Diesel-Powered Motor Vehicle Idling Act (Act 124 of 2008, or simply Act 124) into the Pennsylvania SIP. Act 124, passed by the Pennsylvania General Assembly and signed into state law by Governor Rendell in October 2008 (and effective at the state level in February 2009), reduces the allowable time that heavy-duty, commercial highway diesel vehicles of over 10,000 pounds gross vehicle weight can idle their main propulsion engines. The law restricts idling of these commercial diesel vehicles (mostly heavy trucks and buses) to a period of 5 minutes per continuous 60 minute period (with certain allowable exemptions and exclusions). Act 124 applies statewide in the Commonwealth, and is estimated by Pennsylvania to significantly reduce emissions of nitrogen oxides (NO <sup>X</sup> ), volatile organic compounds (VOCs), and fine particulate matter (PM). While idle time emissions limits are not mandatory under the Clean Air Act (CAA), incorporation of Act 124 into the SIP does strengthen the SIP, makes the state law federally enforceable by EPA, and allows the Commonwealth to take credit for emissions benefits from the rule as part of future Pennsylvania SIP revisions to demonstrate compliance with CAA National Ambient Air Quality Standards (NAAQS). This action is being taken under the CAA. In the Final Rules section of this **Federal Register** , EPA is approving the Commonwealth's SIP submittal as a direct final rule without prior proposal because EPA 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 action, 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 If EPA receives adverse comments, the direct final rule will be withdrawn and all public comments received will be addressed in a subsequent final rule based on this proposed rule.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. DATES: Comments must be received in writing by August 31, 2011. ADDRESSES: Submit your comments, identified by Docket ID Number EPA-R03-OAR-2011-0471 by one of the following methods: A. *http://www.regulations.gov.* Follow the on-line instructions for submitting comments. B. *E-mail: fernandez.cristina@epa.gov* C. *Mail:* EPA-R03-OAR-2011-0471, Cristina Fernandez, Associate Director, Office of Air Program Planning, Mailcode 3AP30, U.S. Environmental Protection Agency, Region III, 1650 Arch Street, Philadelphia, Pennsylvania 19103. D. *Hand Delivery:* At the previously-listed EPA Region III address. Such deliveries are only accepted during the Docket's normal hours of operation, and special arrangements should be made for deliveries of boxed information. *Instructions:* Direct your comments to Docket ID No. EPA-R03-OAR-2011-0471. EPA's policy is that all comments received will be included in the public docket without change, and may be made available online at *http://www.regulations.gov,* including any personal information provided, unless the comment includes information claimed to be Confidential Business Information

(CBI)or other information whose disclosure is restricted by statute. Do not submit information that you consider to be CBI or otherwise protected through *http://www.regulations.gov* or e-mail. The *http://www.regulations.gov* Web site is an “anonymous access” system, which means EPA will not know your identity or contact information unless you provide it in the body of your comment. If you send an e-mail comment directly to EPA without going through *http://www.regulations.gov,* your e-mail address will be automatically captured and included as part of the comment that is placed in the public docket and made available on the Internet. If you submit an electronic comment, EPA recommends that you include your name and other contact information in the body of your comment and with any disk or CD-ROM you submit. If EPA cannot read your comment due to technical difficulties and cannot contact you for clarification, EPA may not be able to consider your comment. Electronic files should avoid the use of special characters, any form of encryption, and be free of any defects or viruses. *Docket:* All documents in the electronic docket are listed in the *http://www.regulations.gov* index. Although listed in the index, some information is not publicly available, i.e., CBI or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, is not placed on the Internet and will be publicly available only in hard copy form. Publicly available docket materials are available either electronically in *http://www.regulations.gov* or in hard copy during normal business hours at the Air Protection Division, U.S. Environmental Protection Agency, Region III, 1650 Arch Street, Philadelphia, Pennsylvania 19103. Copies of the State submittal are available at the Pennsylvania Department of Environmental Protection, Bureau of Air Quality Control, P.O. Box 8468, 400 Market Street, Harrisburg, Pennsylvania 17105. FOR FURTHER INFORMATION CONTACT: Brian Rehn,

(215)814-2176, or by e-mail at *rehn.brian@epa.gov.* SUPPLEMENTARY INFORMATION: For further information, please see the information provided in the direct final action, with the same title, that is located in the “Rules and Regulations” section of this **Federal Register** publication. Dated: July 18, 2011. W.C. Early, Acting Regional Administrator, Region III. [FR Doc. 2011-19275 Filed 7-29-11; 8:45 am]

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