MONTHLY STATEMENT OF THE PUBLIC DEBT OF THE UNITED STATES MAY 31, 2007 TABLE I -- SUMMARY OF TREASURY SECURITIES OUTSTANDING, MAY 31, 2007 (Millions of dollars) Amount Outstanding Title Debt Held Intragovernmental Totals By the Public Holdings Marketable: Bills....................................... 915,490 3,589 919,079 Notes....................................... 2,461,180 1,797 2,462,977 Bonds....................................... 547,151 105 547,257 Treasury Inflation-Protected Securities..... 434,820 140 434,960 Federal Financing Bank 1 ................. 0 14,000 14,000 Total Marketable a........................... 4,358,641 19,632 2 4,378,273 Nonmarketable: Domestic Series............................. 29,995 0 29,995 Foreign Series.............................. 2,986 0 2,986 R.E.A. Series............................... 1 0 1 State and Local Government Series........... 300,303 0 300,303 United States Savings Securities............ 199,168 0 199,168 Government Account Series................... 83,802 3,828,489 3,912,291 Other....................................... 5,975 0 5,975 Total Nonmarketable b........................ 622,230 3,828,489 4,450,720 Total Public Debt Outstanding................. 4,980,871 3,848,121 8,828,992 TABLE II -- STATUTORY DEBT LIMIT, MAY 31, 2007 (Millions of dollars) Amount Outstanding Title Debt Held Intragovernmental Totals By the Public 19 Holdings Debt Subject to Limit: 19 Public Debt Outstanding..................... 4,980,871 3,848,121 8,828,992 Less Amounts Not Subject to Limit: Other Debt Not Subject to Limit........... 503 0 503 Unamortized Discount 3................... 31,748 41,920 73,668 Federal Financing Bank 1 ............ 0 14,000 14,000 Total Public Debt Subject to Limit.......... 4,948,620 3,792,201 8,740,822 Other Debt Subject to Limit: Guaranteed Debt of Government Agencies 4 70 0 70 Total Public Debt Subject to Limit.......... 4,948,691 3,792,201 8,740,892 Statutory Debt Limit 5..................................................................... 8,965,000 Balance of Statutory Debt Limit............................................................. 224,108 COMPILED AND PUBLISHED BY THE BUREAU OF THE PUBLIC DEBT www.TreasuryDirect.gov