This part of this multipart standard on Electronic Health Record Communication describes a methodology for specifying the privileges necessary to access EHR data. This methodology forms part of the overall EHR communications architecture defined in ISO 13606 Part 1. This part of ISO 13606 seeks to address those requirements uniquely pertaining to EHR communications and to represent and communicate EHR-specific information that will inform an access decision. It also refers to general security requirements that apply to EHR communications and points at technical solutions and standards that specify details on services meeting these security needs. NOTE Security requirements for EHR systems not related to the communication of EHRs are outside the scope of this part of ISO 13606.