You must always carry your green card with you. You must notify the USCIS if you move or change your address. You must do this within 10 days of the date of your change of address. A change of address form is available on the USCIS website. Our firm also prepares these forms for a small fee. You must also not use your green card or other U.S. immigration documents for any fraudulent purpose. Finally, you must not represent yourself as a U.S. Citizen to obtain a benefit pursuant to any U.S. law. A violation of any of these items may result in deportation.