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                    Document headings vary by document type but may contain                    the following:                  
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###### Department of Transportation

###### Federal Railroad Administration

          - [Docket Number FRA-2011-0102]

                    In accordance with Part 211 of Title 49 Code of Federal Regulations (CFR), this document provides the public notice that by a document dated                           ( print page 2606)                        December 1, 2011, the Union Pacific Railroad (UP) has petitioned the Federal Railroad Administration (FRA) for a waiver of compliance from certain provisions of the Federal railroad safety regulations contained at  49 CFR 229.129(c)(7), requiring cab-mounted horns to be tested with microphones at  4 feet above the height of the rail. FRA assigned the petition Docket Number FRA-2011-0102.                

UP's request follows a similar CSX Transportation (CSX) waiver request that was approved by FRA. In its waiver request (Docket Number FRA-2007-28612), CSX requested permission to test cab-mounted horns at 15 feet due to the effects of the acoustic shadows and ground reflection on the measurements when using a microphone at the 4-foot height. CSX also provided documentation of a study that clear1y demonstrated the effects of acoustic shadows and ground reflection on testing cab-mounted locomotive horns at the 4-foot height, compared to the 15-foot height. In the December 21, 2007, decision letter (FRA-2007-28612-0004), FRA granted CSX permission to test cab-mounted horns at the 15-foot height.

                    A copy of the petition, as well as any written communications concerning the petition, is available for review online at                     *http://www.regulations.gov*                     and in person at the U.S. Department of Transportation's (DOT) Docket Operations Facility, 1200 New Jersey Ave. SE., W12-140, Washington, DC 20590. The Docket Operations Facility is open from 9 a.m. to 5 p.m., Monday through Friday, except Federal Holidays.                

Interested parties are invited to participate in these proceedings by submitting written views, data, or comments. FRA does not anticipate scheduling a public hearing in connection with these proceedings since the facts do not appear to warrant a hearing. If any interested party desires an opportunity for oral comment, they should notify FRA, in writing, before the end of the comment period and specify the basis for their request.

All communications concerning these proceedings should identify the appropriate docket number and may be submitted by any of the following methods:
    -  Web site: http://www.regulations.gov.                      Follow the online instructions for submitting comments.                
    -  Fax:                      (202) 493-2251.                
    -  Mail:                      Docket Operations Facility, U.S. Department of Transportation, 1200 New Jersey Avenue SE., W12-140, Washington, DC 20590.                
    -  Hand Delivery:                      1200 New Jersey Avenue SE., Room W12-140, Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal Holidays.                

Communications received by March 5, 2012 will be considered by FRA before final action is taken. Comments received after that date will be considered as far as practicable.

                    Anyone is able to search the electronic form of any written communications and comments received into any of our dockets by the name of the individual submitting the comment (or signing the comment, if submitted on behalf of an association, business, labor union, etc.). You may review DOT's complete Privacy Act Statement in the                     **Federal Register**                     published on April 11, 2000 (Volume 65, Number 70; Pages 19477-78), or online at                     *http://www.dot.gov/​privacy.html*.                

Issued in Washington, DC, on January 10, 2012.

Ron Hynes,

Acting Deputy Associate Administrator for Regulatory and Legislative Operations.

[FR Doc. 2012-751 Filed 1-17-12; 8:45 am]

BILLING CODE 4910-06-P