Generally, you are an eligible non-citizen if you are one of the following:
If your citizenship status has changed from an eligible non-citizen to a U.S. citizen, contact the Social Security Administration (SSA) to update your citizenship status. If you do not update your citizenship status with the SSA, it could delay processing your student financial aid. To contact the SSA call 1-800-772-1213 or visit the Social Security Administration's Web site at www.ssa.gov.
Eligible non-citizens must enter their eight- or nine-digit Alien Registration Number (ARN) when completing the Free Application for Federal Student Aid (FAFSA), which is used to determine eligibility for state and federal student aid.