FIN §1684: (a) (1) No foreign (other state) bank may merge as the surviving corporation with a California bank, except that an insured foreign (other state) bank may do so in accordance with federal law, the law

(a) (1) No foreign (other state) bank may merge as the surviving corporation with a California bank, except that an insured foreign (other state) bank may do so in accordance with federal law, the law of the domicile of the foreign (other state) bank, this chapter, and Division 1.6 (commencing with Section 4800). (2) No foreign (other state) bank may purchase the whole business unit of a California bank, except that an insured foreign (other state) bank may do so in accordance with federal law, the law of the domicile of the foreign (other state) bank, this chapter, and Division 1.6 (commencing with Section 4800). (3) No foreign (other state) bank that does not already maintain a California branch office may establish or maintain a California branch office except in the manner described in paragraph (1) or (2) and in accordance with federal law, the law of the domicile of the foreign (other state) bank, and this chapter. (b) This section constitutes: (1) An election to permit early interstate merger transactions pursuant to Section 44(a)(3) of the Federal Deposit Insurance Act (12 U.S.C. Sec. 1831u(a)(3)). (2) An express prohibition against interstate branching through the acquisition of a branch business unit located in this state of a California bank (without acquisition of the whole business unit of the California bank) pursuant to Section 44(a)(4) of the Federal Deposit Insurance Act (12 U.S.C. Sec. 1831u(a)(4)).