This excerpt taken from the FHN 10-K filed Mar 8, 2006.
Restrictions on dividends. Dividends are paid by FHN from its assets, which are mainly provided by dividends from its subsidiaries. Certain regulatory restrictions exist regarding the ability of FTBNA to transfer funds to FHN in the form of cash, dividends, loans or advances. As of December 31, 2005, FTBNA had undivided profits of $2,167.2 million of which $815.3 million was available for distribution to FHN as dividends without prior regulatory approval.