Use of Locomotive Horns at Highway-Rail Grade Crossings; Technical Amendments to Appendix D
Direct final rule.
This direct final rule makes technical amendments to appendix D of part 222 of the Code of Federal Regulations to update information contained in the appendix and direct the public to the most recent value of the Nationwide Significant Risk Threshold (NSRT). The amendments are intended to eliminate confusion regarding the data and calculations that will be used to determine the NSRT on an annual basis. Interested parties may submit written adverse comments or request an oral hearing on these amendments during the thirty (30) day period following publication of this direct final rule.