<prompt> Translate the following text to EnglishKwa maelezo zaidi juu ya kupunguza madeni, angalia Federal Majibu ya Maswali ya Mara kwa Mara - Updated GAO-OGC-99-27, Mei 28, 1999, Usimamizi wa Madeni ya Shirikisho katika Kipindi cha Faida ya Bajeti GAO-OGC-99-29, Septemba 29, 1999, na Hatua za Usimamizi wa Madeni ya Shirikisho na Changamoto za Baadaye GAO-01-37, Februari 28, 2001.  <response>: For more information on debt reduction, see Federal Answers to Frequently Asked Questions-An Update GAOOCG-99-27, May 28, 1999,Federal Debt Management in a Period of Budget Surplus GAOAIMD-99-270, September 29, 1999, andFederal Debt Management Actions and Future Challenges GAO-01-317, February 28, 2001. 