Tennessee Code Title 45. Banks and Financial Institutions § 45-2-1803

(a) The commissioner of financial institutions shall adopt regulations, for the protection of depositors, that state banks, or any class of state banks determined by the commissioner to be appropriate, are required to apply to and receive approval of the commissioner before engaging in one (1) or more of the activities permitted in § 45-2-1802, and may be required to conduct certain of the activities, other than those activities that may be conducted directly by a national bank, only through a subsidiary.

(b) Any offices of the subsidiary shall not be considered branches of the bank for purposes of § 45-2-614.

(c) In addition, the commissioner of commerce and insurance may adopt regulations, if the commissioner determines that the action is necessary for the protection of investors and in the public interest, to require the underwriting, market making or dealing in securities (other than securities which may be underwritten or dealt in by national banks or in which national banks may make a market) activities of state banks be conducted through a subsidiary.