| FOF Code | Description |
| + FL663061005.Q | Security brokers and dealers; total U.S. government securities; asset |
| + FL653061003.Q | Mutual funds; total U.S. government securities; asset |
| + FL633061005.Q | Money market mutual funds; total U.S. government securities; asset |
| + FL673061005.Q | Issuers of asset-backed securities; total U.S. government securities; asset |
| + FL553061103.Q | Closed-end funds; Treasury securities; asset |
| + FL643061773.Q | Mortgage real estate investment trusts; agency- and GSE-backed securities; asset |
| + FL563061103.Q | Exchange-traded funds; Treasury securities; asset |
| + FL733061005.Q | Holding companies; total U.S. government securities; asset |