Apply for a Certificate of Residence. Complete the appropriate affidavit.Gov or submit in-person at the NYC Comptroller's Office. Currently enrolled CUNY students should apply with the CUNY Application. Please note that the application deadlines on the CUNY website are suggested deadlines. Our rolling admissions policy means there is no deadline to apply. However, we encourage early applications to ensure course selection and housing availability. 1. Open the e-District portal and log in. A Certificate of Residence verifies that you have been a New York State resident for one year prior to registration or the start of classes. Big things happen at Harrisburg University.