Each program shall develop a written procedure that assures prompt and complete investigations of all serious complaints which are filed. The procedure shall include, at a minimum, the following provisions:

1. (A) Designation of a member ofthe program's administration as the person responsible for overseeing the investigation of serious complaints lodged;
2. (B) Establishment of a reporting procedure which assures that the designated administrator will receive within one day from staff, in writing, reports of serious complaints;

3. (C) Development by the designated administrator of a written process of investigation which shall include the following:

   1. (1) A process of fact-gathering that he will utilize, including provision for interviewing of a patient complainant;
   2. (2) Creation of a complaint file that includes the original report of complaint, progress reports as investigation is carried out and outcome of investigation including action taken, if any;
   3. (3) Notification of the complainant of the outcome of the investigation.