[Code of Federal Regulations] [Title 21, Volume 1] [Revised as of April 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR12.75] [Page 122] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES PART 12_FORMAL EVIDENTIARY PUBLIC HEARING--Table of Contents Subpart D_Presiding Officer Sec. 12.75 Disqualification of presiding officer. (a) A participant may request the presiding officer to disqualify himself/herself and withdraw from the proceeding. The ruling on any such request may be appealed in accordance with Sec. 12.97(b). (b) A presiding officer who is aware of grounds for disqualification shall withdraw from the proceeding.