California Code, Revenue and Taxation Code - RTC § 30458.8

(a) Any conference shall be held at a reasonable time at a board office that is convenient to the taxpayer.

(b) The conference may be recorded only if prior notice is given to the taxpayer and the taxpayer is entitled to receive a copy of the recording.

(c) The taxpayer shall be informed prior to any conference that he or she has a right to have present at the conference his or her attorney, accountant, or other designated agent.