Business associate includes:
(i) A Health Information Organization, E-prescribing Gateway, or other person that provides data transmission services with respect to protected health information to a covered entity and that requires access on a routine basis to such protected health information.
(ii) A person that offers a personal health record to one or more individuals on behalf of a covered entity.
(iii) A subcontractor that creates, receives, maintains, or transmits protected health information on behalf of the business associate.
45 CFR § 160.103
Except as otherwise provided, the following definitions apply to this subchapter: