The holdings of gold reserves of the United States are presented in various financial reports, including the United States Mint’s (Mint) Schedule of Custodial Deep Storage Gold and Silver Reserves (Mint’s Custodial Schedule), the Mint’s financial statements, and Treasury’s departmentwide financial statements. As of September 30, 2010, most, or approximately 95 percent, of the reported gold reserves of the United States were in the custody of the Mint. The gold reserves in the custody of the Mint are comprised of deep storage and working stock gold. Deep storage gold, which consists primarily of gold bars, represented nearly all of the gold reserves in the custody of the Mint and was maintained in three locations: the United States Bullion Depository at Fort Knox, Kentucky; the Mint at Denver, Colorado; and the Mint at West Point, New York. Working stock— which consists of bars, blanks, unsold coins, and condemned coins— represented about 1 percent of the reported gold reserves in the custody of the Mint and can be used as the raw material for minting coins. The remaining reported holdings of gold reserves of the United States were in the custody of the Federal Reserve Bank of New York. Table 1 presents the reported amounts as of September 30, 2010, of fine troy ounces (FTOs) of gold reserves of the United States by category and the financial reports in which such categories were presented. From September 30, 2006, through September 30, 2010, the reported fiscal year-end amounts of FTOs of (1) deep storage gold reserves in the custody of the Mint and (2) gold reserves in the custody of the Federal Reserve Bank of New York have not changed. In 1974, in response to congressional interest and in conjunction with the Mint, GAO assisted in the planning and observed the inventory of gold reserves of the United States maintained by the United States Bullion Depository at Fort Knox. GAO selected 3 of the 13 compartments at this depository to be audited. The audit procedures included observing and participating in a physical inventory of the entire contents of the three compartments. GAO did not report any differences between the gold stored in these compartments and the Fort Knox depository’s records. In addition, GAO’s procedures included observing the assaying of a sample of gold bars. The results of the assays indicated that the recorded finenesses were within the tolerances the Mint established. In connection with this audit, GAO recommended that the Secretary of the Treasury request the Director of the Mint to annually perform a cyclical inventory of its gold holdings to ensure that the gold holdings in all compartments would be inventoried over a specified period of years. Acting on this recommendation, Treasury established the Committee for Continuing Audits of United States Government-owned Gold (Committee for Continuing Audits) in 1975 to oversee and provide guidelines and general direction for continuing audits. The objectives of the continuing audits were to verify the accuracy of the inventory of gold and the adequacy of related accounting records and internal controls in accordance with Treasury audit policies. A March 1982 report to the Congress by the Gold Commission noted that the continuing audit of such gold was conducted on a cyclical basis because of the enormous quantity of gold to be handled and the related costs. In an April 1987 report on continuing audits of the United States government-owned gold, the Treasury OIG stated that the continuing audits were designed to ensure that about 10 percent of the United States government-owned gold was audited annually. Further, the Treasury OIG stated that on September 19, 1986, the Inspector General had recommended canceling Treasury Department Order No. 234-1, which had resulted in the creation of the Committee for Continuing Audits, because it was unnecessary in view of the authority of the Inspector General to conduct audits of the gold stock under other Treasury Orders. It was also stated that annual audits of government-owned gold were no longer necessary because (1) virtually all of the gold in the custody of the Mint had been audited and placed under seal and (2) there had been essentially no discrepancies found as a result of those audits. Moreover, it was noted that Treasury Department Order No. 234-1 was subsequently canceled. According to the Treasury OIG, about 92 percent of the United States government-owned gold had been audited by either GAO or the Committee for Continuing Audits as of September 30, 1986. More recently, the gold reserves of the United States have been presented in various financial reports and have therefore been subject to various audit efforts. For example, while the deep storage gold reserves are a primary focus of the audit of the Mint’s Custodial Schedule, which is audited by the Treasury OIG, the deep storage gold reserves are also within the scope of the audit of the Mint’s financial statements, which are audited by independent public accountants. Also, as a bureau within Treasury, the balances and activity of the Mint are included on Treasury’s departmentwide financial statements, which are required by law to annually be prepared, audited, and submitted to the Congress and the Director of the Office of Management and Budget. Specifically, 31 U.S.C. §3515(b) requires that the financial statements of covered executive agencies, of which Treasury is one, include the overall financial position of the offices, bureaus, and activities covered by the statements, including the assets and liabilities thereof; and the results of operations of those offices, bureaus, and activities. The Inspector General Act of 1978, as amended, (IG Act) created offices of inspector general at major federal departments, including the Treasury OIG, to provide independent audits and investigations; promote economy, efficiency, and effectiveness; and prevent and detect fraud, waste, and abuse in the respective department’s programs and operations. The Treasury OIG performs annual audits of the Mint’s Custodial Schedule, which reports the deep storage gold reserves. As shown in table 1, the deep storage gold reserves represent nearly all of the gold reserves in the custody of the Mint. Since issuing its first audit report on the Mint’s Custodial Schedules in 1995, which presented the results of its audit of the Mint’s Custodial Schedules as of September 30, 1994, and 1993, the Treasury OIG has annually audited the deep storage gold reserves in the custody of the Mint as reported in the respective Mint’s Custodial Schedules. For each of the fiscal years under audit, the Treasury OIG rendered unqualified or “clean” opinions on the Mint’s Custodial Schedules. In addition, the Treasury OIG did not report any material weaknesses in internal control over financial reporting relating to the schedules for these fiscal years. The Treasury OIG’s most recent audit report on the Mint’s Custodial Schedules, which presented the deep storage gold reserves in the custody of the Mint as of September 30, 2010, was issued on October 21, 2010. In connection with the Treasury OIG’s annual audits of the Mint’s Custodial Schedules, Treasury OIG officials told us that the Treasury OIG reviews the physical controls (e.g., security fences, armed guards, security cameras, metal detectors) at each of the three Mint locations where the deep storage gold reserves are maintained. According to Treasury OIG officials, as of September 30, 2010, there were 42 compartments of deep storage gold reserves spread among these three Mint locations. As previously noted, Treasury OIG officials estimate that about 92 percent of the United States government-owned gold was audited by either GAO or the Committee for Continuing Audits as of September 30, 1986. These officials told us that once the inventory of a compartment being audited was completed, the compartment was sealed with an official joint seal. A joint seal is intended to place the gold contained in a compartment under such control that subsequent representatives can accept the verification made by previous representatives as to the weight and count of the gold. According to Treasury OIG officials, the official joint seals, for all of the compartments that were audited by either GAO or the committee and that had not been opened since such audits, were inspected by the Treasury OIG, as part of its audits of the Mint’s Custodial Schedules, to verify that the seals had not been compromised. These officials also told us that over the course of the Treasury OIG’s audits of the Mint’s Custodial Schedules for fiscal years 1993 through 2008, the compartments containing the deep storage gold reserves not audited by either GAO or the committee, along with any previously sealed compartments that were opened, were selected and audited. These officials told us that such audits included verifying the following to the Mint’s inventory records: 1. the number of gold bars in each melt; 2. the melt number for each gold bar in the melt; and 3. the fineness stamped on each gold bar in the melt. In addition, as part of the audits of the selected compartments, Treasury OIG officials stated that the Treasury OIG’s audit procedures have included selecting a statistical sample of gold bars from the selected compartments to be weighed and assayed and that no material differences were noted. These officials also told us that once the inventory of a selected compartment being audited was completed, the compartment was sealed with an official joint seal to control the gold reserves contained in the compartment. According to Treasury OIG officials, opening and sealing compartments require the presence of three individuals—a representative of the facility where the gold reserves are held, a representative of the Director of the Mint, and a representative of the Treasury OIG.