Sequential numbering makes it easier to connect each permit with a vehicle, employee, resident, department, or assigned space. A permit log should record the number, issue date, vehicle registration, recipient, and current status. This allows security staff to identify permits that are lost, replaced, transferred, or cancelled. Number ranges can also separate buildings, parking zones, employee groups, or issue periods. Before ordering, confirm the required sequence so it does not overlap with permits already in use. Use large, easy-to-read numbers when permits will be viewed from a distance. If a permit is replaced, mark the earlier number as invalid rather than assigning it to another vehicle immediately. Clear recordkeeping is especially important because non-expiring permits do not become obsolete through a printed expiry date.