If your family group includes a student age 18-19 in elementary or secondary school, you are also required to complete Form G-320, " Student Questionnaire for Special Guaranty Computation" . A separate Form G-320 is required for each student.
As explained in Booklet G-316, " Railroad Retirement Benefits For Students Age 18-19 in Elementary or Secondary School" , Form G-320 is needed to obtain verification of the school attendance for children age 18-19. The Form G-320 is needed when the child is either age 18-19 at initial entitlement or a minor child included in the Special Guaranty computation who attains age 18 and qualifies as a full-time student.