At a minimum, the petitioner must serve a copy of their petition on any person the petitioner knows would be affected by the declaratory relief sought. Further, notice of a petition for declaratory ruling should also be made by the petitioner in a manner designed to call its attention to persons likely to be interested in the subject matter of the petition. The presiding officer may direct the petitioner and/or the agency to make, or attempt to make, notice or service to potentially interested persons if those potentially interested persons have not previously been notified of, or served with, the petition.
Idaho Admin. Code r. 62.01.01.726