B. Federal Hospital Insurance Trust Fund

The contributions collected become part of a trust fund from which all Part A payments are made. This fund is administered by a Board of Trustees consisting of the Secretary of the Treasury (who is the Managing Trustee), the Secretary of Labor, and the Secretary of Health and Human Services all ex-officio. The Managing Trustee is authorized to invest trust funds only in interest-bearing obligations of the United States, or in obligations guaranteed as to both principal and interest by the United States not need for current withdrawals, and to make payments from the fund for purposes of Part A, including administrative expenses.