[Code of Federal Regulations] [Title 49, Volume 5] [Revised as of October 1, 2005] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR382.311] [Page 171] TITLE 49--TRANSPORTATION DEPARTMENT OF TRANSPORTATION PART 382_CONTROLLED SUBSTANCES AND ALCOHOL USE AND TESTING--Table of Contents Subpart C_Tests Required Sec. 382.311 Follow-up testing. The requirements for follow-up testing must be performed in accordance with 49 CFR part 40, Subpart O.