| FOF Code | Description |
| + FU313161105.Q | Federal government; total marketable Treasury securities; liability |
| - FU103061103.Q | Nonfinancial corporate business; Treasury securities; asset |
| - FU213061103.Q | State and local governments; Treasury securities, excluding SLGS; asset |
| - FU263061105.Q | Rest of the world; Treasury securities; asset |
| - FU793061105.Q | Domestic financial sectors; Treasury securities; asset |
| - FU113061003.Q | Nonfinancial noncorporate business; total U.S. government securities; asset |
| - FU903061103.Q | Instrument discrepancies; Treasury securities (level) |