[Code of Federal Regulations] [Title 49, Volume 6] [Revised as of October 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR845.26] [Page 219] TITLE 49--TRANSPORTATION SAFETY BOARD PART 845--RULES OF PRACTICE IN TRANSPORTATION; ACCIDENT/INCIDENT HEARINGS AND REPORTS--Table of Contents Subpart B--Conduct of Hearing Sec. 845.26 Evidence. The chairman of the board of inquiry shall receive all testimony and evidence which may be of aid in determining the cause of accident. He may exclude any testimony or exhibits which are not pertinent to the investigation or are merely cumulative.