You must renew your alien registration card after a certain period of time.
Application period: This is indicated on the alien registration card. The application deadline is within 30 days of your fifth birthday following the date of initial registration or most recent date of renewal.
Documents to submit: Passport, two identical photos (as described under "New registration," above), completed application form confirming the information registered (available at the counter)
Persons under 16 years of age: No confirmation is required until the foreign resident reaches 16 years of age. An application for renewal must be made no later than 30 days after the 16th birthday.