MONTHLY STATEMENT OF THE PUBLIC DEBT
OF THE UNITED STATES
MARCH 31, 2008

TABLE I -- SUMMARY OF TREASURY SECURITIES OUTSTANDING, MARCH 31, 2008
(Millions of dollars)
                                              Amount Outstanding
Title                                         Debt Held             Intragovernmental         Totals
                                              By the Public         Holdings
Marketable:
  Bills.......................................        1,153,879                     4,509                1,158,388
  Notes.......................................        2,513,108                       979                2,514,087
  Bonds.......................................          571,738                        92                  571,830
  Treasury Inflation-Protected Securities.....          473,940                       116                  474,056
  Federal Financing Bank  1  .................                0                    14,000                   14,000
Total Marketable  a...........................        4,712,665                    19,696 2              4,732,361
Nonmarketable:
  Domestic Series.............................           29,995                         0                   29,995
  Foreign Series..............................            4,886                         0                    4,886
  R.E.A. Series...............................                1                         0                        1
  State and Local Government Series...........          286,344                         0                  286,344
  United States Savings Securities............          195,425                         0                  195,425
  Government Account Series...................           99,903                 4,083,782                4,183,685
  Other.......................................            4,897                         0                    4,897
Total Nonmarketable  b........................          621,451                 4,083,782                4,705,233
Total Public Debt Outstanding.................        5,334,116                 4,103,479                9,437,594
TABLE II -- STATUTORY DEBT LIMIT, MARCH 31, 2008
(Millions of dollars)
                                              Amount Outstanding
Title                                         Debt Held             Intragovernmental         Totals
                                                 By the Public 19   Holdings
Debt Subject to Limit: 19
  Public Debt Outstanding.....................        5,334,116                 4,103,479                9,437,594
  Less Amounts Not Subject to Limit:
    Other Debt Not Subject to Limit...........              498                         0                      498
    Unamortized Discount  3...................           27,220                    37,794                   65,014
    Federal Financing Bank  1     ............                0                    14,000                   14,000
  Total Public Debt Subject to Limit..........        5,306,397                 4,051,685                9,358,082
  Other Debt Subject to Limit:
    Guaranteed Debt of Government Agencies  4                53                         0                       53
  Total Public Debt Subject to Limit..........        5,306,450                 4,051,685                9,358,135
  Statutory Debt Limit  5.....................................................................           9,815,000
  Balance of Statutory Debt Limit.............................................................             456,865
COMPILED AND PUBLISHED BY
THE BUREAU OF THE PUBLIC DEBT
www.TreasuryDirect.gov