California Code, Government Code - GOV § 11435.55

(a) An interpreter used in a hearing shall be certified pursuant to Section 11435.30.  However, if an interpreter certified pursuant to Section 11435.30 cannot be present at the hearing, the hearing agency shall have discretionary authority to provisionally qualify and use another interpreter.

(b) An interpreter used in a medical examination shall be certified pursuant to Section 11435.35.  However, if an interpreter certified pursuant to Section 11435.35 cannot be present at the medical examination, the physician provisionally may use another interpreter if that fact is noted in the record of the medical evaluation.