[Code of Federal Regulations] [Title 45, Volume 1] [Revised as of October 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 45CFR164.104] [Page 685] TITLE 45--PUBLIC WELFARE AND HUMAN SERVICES PART 164--SECURITY AND PRIVACY--Table of Contents Subpart A--General Provisions Sec. 164.104 Applicability. Except as otherwise provided, the provisions of this part apply to covered entities: health plans, health care clearinghouses, and health care providers who transmit health information in electronic form in connection with any transaction referred to in section 1173(a)(1) of the Act.