[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: 49CFR821.38] [Page 170] TITLE 49--TRANSPORTATION CHAPTER VIII--NATIONAL TRANSPORTATION SAFETY BOARD PART 821_RULES OF PRACTICE IN AIR SAFETY PROCEEDINGS--Table of Contents Subpart F_Hearing Sec. 821.38 Evidence. Each party shall have the right to present a case-in-chief, or defense, by oral and documentary evidence, to submit evidence in rebuttal, and to conduct such cross-examination as may be required for a full and true disclosure of the facts. Hearsay evidence (including hearsay within hearsay, where there are acceptable circumstantial indicia of trustworthiness) shall be admissible. All material and relevant evidence should be admitted, but the law judge may exclude unduly repetitious evidence.