[Code of Federal Regulations] [Title 49, Volume 4] [Revised as of October 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR211.53] [Page 70] TITLE 49--TRANSPORTATION CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 211--RULES OF PRACTICE--Table of Contents Subpart E--Miscellaneous Safety-Related Proceedings and Inquiries Sec. 211.53 Signal applications. Applications for approval of discontinuance or material modification of a signal system authorized by part 235 or waiver of a requirement of part 236 of this chapter must be submitted in triplicate to the Secretary, Railroad Safety Board, handled in accordance with procedures set forth in part 235 or 236, respectively, and decided not later than 9 months after receipt. When a decision is issued, the applicant and other interested parties are notified or a notice is published in the Federal Register.