The audit log allows you to track and view all instances in which information about the patients in the master index application was accessed through the Patient EDM. If audit logging is enabled, an audit log entry is created each time the Patient EDM accesses database tables that contain patient information. The audit log keeps a record of each time the tables are accessed, along with the database function used to access the tables, the login ID of the user accessing the tables, the date and time the tables were accessed, and the EUIDs of the patient profiles that were accessed. This allows you to closely monitor access to the patient records in the master index database and supports HIPAA privacy regulations. The audit log is enabled and disabled in the Enterprise Data Manager file in the Sun Master Patient Index project.