In addition to the Form SSA-2490-BK, an applicant for Swiss benefits must complete
one of several special Swiss application forms. The forms to be completed will vary
depending on the type of benefit claimed. For example, the Form CH/USA 2.3 (Application
for Disability Insurance for Citizens of the United States of America Residing Outside
Switzerland) is used to claim disability benefits from Switzerland. The method of
filing will also vary depending on whether the applicant is a Swiss citizen.