Section 5.5 Vacancies When a vacancy occurs within sixty-ten (60-10) days of the start of a semester, the faculty member may decline the recall while retaining all recall rights for the future. Subdivision 5.51 Recall Notice When accepting recall under this Section, the faculty member shall contact the Office of the Vice President and Provost for assignment within twelve (12) calendar days of the date the recall notice is delivered. Such notice shall be by certified mail, return receipt requested. Subdivision 5.52 Failure to Report Failure, after acceptance of recall under this Section, to report for work as specified in the assignment or within thirty (30) days of receipt of notice of recall, whichever is later, shall result in loss of recall rights. Subdivision 5.53 Failure to Respond Failure to respond to recall under this Section within twelve (12) calendar days of receipt thereof shall constitute a declining of the recall.