Readmission
When a student has not been registered for more than one calendar year, an Application for Readmission
http://graduateschool.vt.edu/admissions/how-to-apply/readmission.html is required whether or not the student has been on a formal Leave of Absence. The Readmission process requires a review of the student's progress and of the Plan of Study to determine what changes, justification of old course work, committee changes or other conditions may be required for readmission to the degree (the forms required for these processes are at:
http://graduateschool.vt.edu/academics/what-you-need-to-graduate/forms.html The minimum enrollment is 3 credits.