(a) “Foreign (other nation),” when used with respect to a bank, means any bank (including any commercial bank, merchant bank, or other institution that engages in banking activities which are usual in connection with the business of banking in the nations where such institution is organized or operating) other than (1) a state bank or (2) a national bank which maintains its head office in a state of the United States.

(b) “Foreign (other nation),” when used with respect to an office of a bank, means an office which is located in a place other than a state of the United States.

(c) “Foreign (other nation),” when used with respect to any corporation other than a bank, means a corporation which is organized under the laws of a foreign nation.

(d) “Foreign (other nation),” when used with respect to a deposit, means a deposit of the kind described in Financial Code Section 1805(a)(2).