[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: 49CFR235.1] [Page 580] TITLE 49--TRANSPORTATION CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 235_INSTRUCTIONS GOVERNING APPLICATIONS FOR APPROVAL OF A DISCONTINUANCE OR MATERIAL MODIFICATION OF A SIGNAL SYSTEM OR RELIEF FROM THE REQUIREMENTS OF PART 236--Table of Contents Sec. 235.1 Scope. Sec. 235.1 Scope. 235.3 Application. 235.5 Changes requiring filing of application. 235.7 Changes not requiring filing of application. 235.8 Relief from the requirements of part 236 of this title. 235.9 Civil penalty. 235.10 Contents of application. 235.12 Additional required information-prints. 235.13 Filing procedure. 235.14 Notice. 235.20 Protests. Appendix A to Part 235--Schedule of Civil Penalties Authority: 49 U.S.C. 20103, 20107; 28 U.S.C. 2461, note; and 49 CFR 1.49. Source: 49 FR 3380, Jan. 26, 1984, unless otherwise noted. This part prescribes application for approval to discontinue or materially modify block signal systems, interlockings, traffic control systems, automatic train stop, train control, or cab signal systems, or other similar appliances, devices, methods, or systems, and provides for relief from part 236 of this title.