MONTHLY STATEMENT OF THE PUBLIC DEBT OF THE UNITED STATES July 31, 2006 (Details may not add to totals) TABLE I -- SUMMARY OF TREASURY SECURITIES OUTSTANDING, July 31, 2006 (Millions of dollars) Amount Outstanding Title Debt Held Intragovernmental Totals By the Public Holdings Marketable: Bills....................................... 929,926 2,768 932,694 Notes....................................... 2,414,905 1,998 2,416,903 Bonds....................................... 522,918 237 523,156 Treasury Inflation-Protected Securities..... 393,587 71 393,657 Federal Financing Bank 1 ................. 0 14,000 14,000 Total Marketable a........................... 4,261,336 2 19,074 4,280,410 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........... 237,425 0 237,425 United States Savings Securities............ 204,825 0 204,825 Government Account Series................... 77,631 3,605,540 3,683,171 Other....................................... 5,533 0 5,533 Total Nonmarketable b........................ 558,396 3,605,540 4,163,937 Total Public Debt Outstanding................. 4,819,732 3,624,614 8,444,347 TABLE II -- STATUTORY DEBT LIMIT, July 31, 2006 Amount Outstanding Debt Held Intragovernmental Totals By the Public Holdings Debt Subject to Limit: Public Debt Outstanding..................... 4,819,732 3,624,614 8,444,347 Less Amounts Not Subject to Limit: Other Debt Not Subject to Limit........... 506 0 506 Repurchase Agreements 19................. 4,082 0 4,082 Unamortized Discount 3................... 32,173 41,064 73,238 Federal Financing Bank 1 ............ 0 14,000 14,000 Total Public Debt Subject to Limit.......... 4,782,971 3,569,550 8,352,521 Other Debt Subject to Limit: Guaranteed Debt of Government Agencies 4 92 0 92 Total Public Debt Subject to Limit.......... 4,783,064 3,569,550 8,352,614 Statutory Debt Limit 5..................................................................... 8,965,000 Balance of Statutory Debt Limit............................................................. 612,386 COMPILED AND PUBLISHED BY THE BUREAU OF THE PUBLIC DEBT www.publicdebt.treas.gov