Federal Railroad Administration May 28, 2008 – Federal Register Recent Federal Regulation Documents

In accordance with Title 49 Code of Federal Regulations Part 222, Appendix D, FRA is updating the Nationwide Significant Risk Threshold (NSRT). This action is needed to ensure that the public has the proper threshold of permissible risk for calculating quiet zones established in relationship to the NSRT. This is the second update to the NSRT since the final rule, titled ``Use of Locomotive Horns at Highway-Rail Grade Crossings,'' was amended in response to petitions for reconsideration on August 17, 2006 (71 FR 47614). This notice announces that the NSRT has fallen from 19,047 to 17,610.