[Code of Federal Regulations] [Title 21, Volume 8] [Revised as of April 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR882.1340] [Page 433] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 882_NEUROLOGICAL DEVICES--Table of Contents Subpart B_Neurological Diagnostic Devices Sec. 882.1340 Nasopharyngeal electrode. (a) Identification. A nasopharyngeal electrode is an electrode which is temporarily placed in the nasopharyngeal region for the purpose of recording electrical activity. (b) Classification. Class II (performance standards).