[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: 49CFR219.105] [Page 220] TITLE 49--TRANSPORTATION CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 219_CONTROL OF ALCOHOL AND DRUG USE--Table of Contents Subpart B_Prohibitions Sec. 219.105 Railroad's duty to prevent violations. (a) A railroad may not, with actual knowledge, permit an employee to go or remain on duty in covered service in violation of the prohibitions of Sec. 219.101 or Sec. 219.102. As used in this section, the knowledge imputed to the railroad must be limited to that of a railroad management employee (such as a supervisor deemed an ``officer,'' whether or not such person is a corporate officer) or a supervisory employee in the offending employee's chain of command. (b) A railroad must exercise due diligence to assure compliance with Sec. Sec. 219.101 and 219.102 by each covered employee. [[Page 221]]