[Code of Federal Regulations] [Title 49, Volume 5] [Revised as of October 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR382.205] [Page 175] TITLE 49--TRANSPORTATION DEPARTMENT OF TRANSPORTATION PART 382_CONTROLLED SUBSTANCES AND ALCOHOL USE AND TESTING--Table of Contents Subpart B_Prohibitions Sec. 382.205 On-duty use. No driver shall use alcohol while performing safety-sensitive functions. No employer having actual knowledge that a driver is using alcohol while performing safety-sensitive functions shall permit the driver to perform or continue to perform safety-sensitive functions.