California Code, Financial Code - FIN § 328

(b)(1) The agreements authorized under subdivision (a) may include, but are not limited to, agreements with agencies of this state, of other states of the United States, of the United States, or of foreign nations that regulate financial institutions, relating to examinations of banks, savings associations, credit unions, industrial loan companies, and other matters.

(2) Any agreement with a government agency that regulates financial institutions is exempt from the advertising and competitive bidding requirements of the Public Contract Code.