Document Headings

                    Document headings vary by document type but may contain                    the following:                  
                -                       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                    
                -                       the RIN which identifies each regulatory action listed in                      the Unified Agenda of Federal Regulatory and Deregulatory                      Actions                    

                    See the                                          Document Drafting Handbook                                        for more details.                  

###### Environmental Protection Agency

          - 40 CFR Part 60 
          - [EPA-HQ-OAR-2008-0260; FRL-8703-2] 
          - RIN 2060-AO42 

# AGENCY:

Environmental Protection Agency (EPA). 

# ACTION:

Proposed rule; extension of public comment period. 

# SUMMARY:

EPA is extending the public comment period on the proposed amendments to the current Standards of Performance for Portland Cement Plants. EPA originally requested comments on the proposed rule by August 15, 2008. EPA is extending the deadline to September 30, 2008, and is now requesting written comments by that date. EPA received a request for this extension to the comment period from the Portland Cement Association. The reason given for the request for the extension was the need for additional time to gather data and review the proposed amendments. Given the fact that the proposed amendments are regulating two pollutants that are not regulated by the current NSPS, and the need by the Portland Cement Association to obtain additional information from control equipment vendors, EPA finds this request to be reasonable. 

# DATES:

*Comments.*                         The comment period for the proposed rule published June 16, 2008 (73 FR 34072), is extended. Comments must be received on or before September 30, 2008.                     

# ADDRESSES:

Submit your comments, identified by Docket ID No. EPA-HQ-OAR-2007-0877, by one of the following methods: 
      -  http://www.regulations.gov:                          Follow the on-line instructions for submitting comments.                     
      -  E-mail: a-and-r-docket@epa.gov .                     
      -  Fax:                          (202) 566-9744.                     
      -  Mail:                          U.S. Postal Service, send comments to: EPA Docket Center (6102T), Standards of Performance (NSPS) for Portland Cement Plants Docket, Docket ID No. EPA-HQ-OAR-2007-0877, 1200 Pennsylvania Ave., NW., Washington, DC 20460. Please include a total of two copies.                     
      -  Hand Delivery:                          In person or by courier, deliver comments to: EPA Docket Center (6102T), Standards of Performance (NSPS) for Portland Cement Plants Docket, Docket ID No. EPA-HQ-OAR-2007-0877, EPA West, Room 3334, 1301 Constitution Avenue, NW., Washington, DC 20004. Such deliveries are only accepted during the Docket's normal hours of operation, and special arrangements should be made for deliveries of boxed information. Please include a total of two copies.                     

*Instructions:*                         Direct your comments to Docket ID No. EPA-HQ-OAR-2007-0877. EPA's policy is that all comments received will be included in the public docket without change and may be made available online at                         *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                         *www.regulations.gov*                         or e-mail. The                         *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                         *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 docket are listed in the                         *www.regulations.gov*                         index. Although listed in the index, some information is not publicly available, e.g., CBI or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, will be publicly available only in hard copy. Publicly available docket materials are available either electronically in                         *www.regulations.gov*                         or in hard copy at the EPA Docket Center, Standards of Performance (NSPS) for Portland Cement Plants Docket, EPA West, Room 3334, 1301 Constitution Ave., NW., Washington, DC. The Public Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday through Friday, excluding legal holidays. The telephone number for the Public Reading Room is (202) 566-1744, and the telephone number for the Docket Center is (202) 566-1742.                     

# FOR FURTHER INFORMATION CONTACT:

                        Mr. Keith Barnett, Office of Air Quality Planning and Standards, Sector Policies and Programs Division, Metals and Minerals Group (D243-02), Environmental Protection Agency, Research Triangle Park, NC 27711,                         *telephone number:*                         (919) 541-5605;                         *fax number:*                         (919) 541-5450;                         *e-mail address: barnett.keith@epa.gov*.                     

# List of Subjects in 40 CFR Part 60

        - Environmental protection
        - Administrative practice and procedure
        - Air pollution control
        - Incorporation by reference
        - Intergovernmental relations
        - Reporting and recordkeeping requirements

Dated: August 5, 2008. 

Robert J. Meyers, 

Principal Deputy Assistant Administrator,  Office of Air and Radiation.

[FR Doc. E8-18627 Filed 8-12-08; 8:45 am] 

BILLING CODE 6560-50-P