Hearings are conducted in accordance with the following procedures:
Subpoenaed witnesses will be given twenty-one calendar days notice of the hearing. Witnesses may present, in writing, to the hearing examiner, reasons why they should not testify, fourteen calendar days before the factfinding hearing. Witnesses will receive an answer in writing, stating whether or not their reasons have been accepted within five working days of receipt of their reasons.
Conn. Agencies Regs. § 46a-5-9