[Code of Federal Regulations] [Title 49, Volume 7] [Revised as of October 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR821.25] [Page 168] TITLE 49--TRANSPORTATION CHAPTER VIII--NATIONAL TRANSPORTATION SAFETY BOARD PART 821_RULES OF PRACTICE IN AIR SAFETY PROCEEDINGS--Table of Contents Subpart C_Special Rules Applicable to Proceedings Under 49 U.S.C. 44703 Sec. 821.25 Burden of proof. In proceedings under 49 U.S.C. 44703, the burden of proof shall be upon the petitioner.