| FOF Code | Description |
| + FA103061103.A | Nonfinancial corporate business; Treasury securities; asset |
| + FA153061105.A | Households and nonprofit organizations; Treasury securities; asset |
| + FA213061103.A | State and local governments; Treasury securities, excluding SLGS; asset |
| + FA113061003.A | Nonfinancial noncorporate business; total U.S. government securities; asset |
| + FA763061100.A | U.S.-chartered depository institutions; Treasury securities; asset |
| + FA743061103.A | Banks in U.S.-affiliated areas; Treasury securities; asset |
| + FA753061103.A | Foreign banking offices in the U.S.; Treasury securities; asset |
| + FA403061105.A | Government-sponsored enterprises; Treasury securities; asset |
| + FA583061105.A | Insurance companies and pension funds; Treasury securities; asset |
| + FA473061105.A | Credit unions; Treasury securities; asset |
| + FA663061105.A | Security brokers and dealers; Treasury securities (net); asset |
| + FA633061105.A | Money market funds; Treasury securities; asset |
| + FA653061105.A | Mutual funds; Treasury securities; asset (market value) |
| + FA553061103.A | Closed-end funds; Treasury securities; asset |
| + FA563061103.A | Exchange-traded funds; Treasury securities; asset |
| + FA673061103.A | Issuers of asset-backed securities; Treasury securities; asset |
| + FA733061103.A | Holding companies; Treasury securities; asset |
| + FA263061105.A | Rest of the world; Treasury securities; asset |
| + FA713061103.A | Monetary authority; total Treasury securities; asset |
| + FA503061123.A | Other financial business; Treasury securities held by central clearing counterparties; asset |