[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: 49CFR390.13] [Page 319] TITLE 49--TRANSPORTATION DEPARTMENT OF TRANSPORTATION PART 390_FEDERAL MOTOR CARRIER SAFETY REGULATIONS; GENERAL--Table of Contents Subpart B_General Requirements and Information Sec. 390.13 Aiding or abetting violations. No person shall aid, abet, encourage, or require a motor carrier or its employees to violate the rules of this chapter.