California Code, Government Code - GOV § 68566

A natural person who either (1) holds a valid certificate as a certified court interpreter issued by a certification entity approved by the Judicial Council, or (2) until January 1, 1996, is named and maintained on the list of recommended court interpreters previously established by the State Personnel Board or established by an entity provisionally approved under subdivision (b) of Section 68562, shall be designated a “certified court interpreter.”  No other person or entity shall use the title “certified court interpreter” or represent that he or she or it is certified to interpret in or for the courts.