[Code of Federal Regulations] [Title 49, Volume 3] [Revised as of October1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR199.215] [Page 189] TITLE 49--TRANSPORTATION CHAPTER I--RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) PART 199--DRUG AND ALCOHOL TESTING--Table of Contents Subpart C--Alcohol Misuse Prevention Program Sec. 199.215 Alcohol concentration. Each operator shall prohibit a covered employee from reporting for duty or remaining on duty requiring the performance of covered functions while having an alcohol concentration of 0.04 or greater. No operator having actual knowledge that a covered employee has an alcohol concentration of 0.04 or greater shall permit the employee to perform or continue to perform covered functions.