This form defines a student enrollment category and verifies residence for enrollment in a Hillsborough County Public School. Declaration of Residency.The use of this declaration shall satisfy one of the proofs of residency required for enrollment in the Hillsborough City School. This form defines student enrollment category and verifies residence when enrolling in a Hillsborough County Public School. You must complete the Residency Form and upload two documents to prove residency. At least one of the two documents submitted must be from Tier 1. Such residency must be intended to be the permanent residency of your child.