California Code, Revenue and Taxation Code - RTC § 5911

(a) Taxpayers are provided fair and understandable explanations of their rights and duties with respect to property taxation, prompt resolution of legitimate questions and appeals regarding their property taxes, and prompt corrections when errors have occurred in property tax assessments.

(b) The board designate a taxpayer's advocate position independent of, but not duplicative of, the board's existing property tax programs, to be specifically responsible for reviewing property tax matters from the viewpoint of the taxpayer, and to review and report on, and to recommend to the board's executive officer any necessary changes with respect to, property tax matters as described in this part.