In this chapter:
(1) "Bank" has the meaning assigned by Section 31.002(a)(2), excluding a bank that does not have its main office or a branch located in this state.
(2) "Bank holding company" has the meaning assigned by Section 2(a), Bank Holding Company Act of 1956 (12 U.S.C. Section 1841(a)), as amended.
(3) "Commissioner" means the banking commissioner of Texas.
(4) "Fiduciary" means an entity responsible for managing a fiduciary account.
(5) "Fiduciary account" means an account with a situs of administration in this state involving the exercise of a corporate purpose specified by Section 182.001(b).