[Code of Federal Regulations] [Title 49, Volume 4] [Revised as of October 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR218.61] [Page 203-204] TITLE 49--TRANSPORTATION CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 218_RAILROAD OPERATING PRACTICES--Table of Contents Subpart D_Prohibition Against Tampering With Safety Devices Sec. 218.61 Authority to deactivate safety devices. (a) For the purpose of this chapter, it is lawful to temporarily render a safety device incapable of proper or effective action or to materially impair its function if this action is taken as provided for in paragraph (b) or (c) of this section. [[Page 204]] (b) If a locomotive is equipped with a device to assure that the operator is alert or not physically incapacitated, that device may be deactivated when: (1) The locomotive is not the controlling locomotive; (2) The locomotive is performing switching operations and not hauling cars in a manner that constitutes a train movement under part 232 of this chapter: (3) The locomotive is dead-in-tow; or (4) The locomotive is a mid-train slave unit being controlled by radio from a remote location. (c) If a locomotive is equipped with a device to record data concerning the operation of that locomotive and/or of the train it is powering, that device may be deactivated only in accordance with the provisions of Sec. 229.135. [54 FR 5492, Feb. 3, 1989, as amended at 58 FR 36613, July 8, 1993]