With Charger Card Mobile ID, a physical Charger Card is no longer necessary. Most smartphones with NFC technology are compatible and can be used for dining, door access, library card access, etc. Certain programs and campus departments require program-specific physical IDs (nursing student badges, OIT employee badges, etc.). Departments should let employees/students know if this is a requirement or not. Those with old physical Charger Cards should keep them in a safe place.