Tenn. Code Ann. § 45-2-1009: Trust offices

(a) No bank shall operate any trust office for the purpose of conducting a general banking business, including, but not limited to, receiving deposits, paying checks, making loans, or receiving or discounting bills and notes at any place where it is prohibited from establishing a branch bank for this purpose.

(b) A bank at any trust office may receive money or other things of value, disburse funds, extend credit and otherwise perform all acts necessary or appropriate for it to carry out its obligations and duties as fiduciary if the activity is otherwise lawful.