Before any person shall be proceeded against on any complaint, and before any pilot shall be removed or suspended, the person or pilot shall be notified in writing to appear before the commission. The notice shall specify the nature and substance of the complaint and shall be served personally, or be left at his or her last and usual place of abode, at least fifteen (15) days before the time fixed in the notice for his or her appearance.
R.I. Gen. Laws § 46-9.1-19