28 U.S.C. § 1961 : US Code - Section 1961: Interest

      (a) Interest shall be allowed on any money judgment in a civil
    case recovered in a district court. Execution therefor may be
    levied by the marshal, in any case where, by the law of the State
    in which such court is held, execution may be levied for interest
    on judgments recovered in the courts of the State. Such interest
    shall be calculated from the date of the entry of the judgment, at
    a rate equal to the weekly average 1-year constant maturity
    Treasury yield, as published by the Board of Governors of the
    Federal Reserve System, for the calendar week preceding.(!1) the
    date of the judgment. The Director of the Administrative Office of
    the United States Courts shall distribute notice of that rate and
    any changes in it to all Federal judges.

      (b) Interest shall be computed daily to the date of payment
    except as provided in section 2516(b) of this title and section
    1304(b) of title 31, and shall be compounded annually.
      (c)(1) This section shall not apply in any judgment of any court
    with respect to any internal revenue tax case. Interest shall be
    allowed in such cases at the underpayment rate or overpayment rate
    (whichever is appropriate) established under section 6621 of the
    Internal Revenue Code of 1986.
      (2) Except as otherwise provided in paragraph (1) of this
    subsection, interest shall be allowed on all final judgments
    against the United States in the United States Court of Appeals for
    the Federal circuit,(!2) at the rate provided in subsection (a) and
    as provided in subsection (b).

      (3) Interest shall be allowed, computed, and paid on judgments of
    the United States Court of Federal Claims only as provided in
    paragraph (1) of this subsection or in any other provision of law.
      (4) This section shall not be construed to affect the interest on
    any judgment of any court not specified in this section.