[Code of Federal Regulations] [Title 49, Volume 4] [Revised as of October 1, 2005] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR222.45] [Page 278] TITLE 49--TRANSPORTATION CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 222_USE OF LOCOMOTIVE HORNS AT PUBLIC HIGHWAY-RAIL GRADE CROSSINGS --Table of Contents Subpart C_Exceptions to the Use of the Locomotive Horn Sec. 222.45 When is a railroad required to cease routine use of locomotive horns at crossings? After notification from a public authority, pursuant to Sec. 222.43(e) of this part, that a quiet zone is being established, a railroad shall cease routine use of the locomotive horn at all public and private highway-rail grade crossings identified by the public authority upon the date set by the public authority. [[Page 279]]