ELIGIBILITY how to get a citizenship card
Being a permanent resident is the primary eligibility requirement while applying for citizenship, the highest immigration status in the U.S. Among the Green Card eligibles, only a few can run for citizenship. These few need to meet the following requirements: The applicant has to be. 1  18 years or older.2  should be a permanent resident for five years to be eligible to file for citizenship. 3  If married to a U.S. citizen, then it is three years of permanent residency.he applicant has to be. 1  18 years or older. 2  should be a permanent resident for five years to be eligible to file for citizenship. 3  residing in the U.S. for a continuous period before applying.