Cal. Rev. & Tax. Code § 164
The chief accounting officer of each taxing agency other than the State, may examine and audit the accounts of any other taxing agency, other than the State, charged under any provision of this code with the apportionment of the proceeds of collections made on behalf of both agencies. In the event more than one taxing agency has an interest in such collections the governing bodies of the interested taxing agencies may enter into an agreement to accept the report on the audit of the chief accounting officer of one of such interested taxing agencies.
As used in this section, "chief accounting officer" means as to a county the auditor thereof, as to a city the auditor thereof, as to an irrigation district the secretary of the board of directors thereof, and as to any other taxing agency the officer designated as its chief accounting officer by the governing body thereof.
Ca. Rev. and Tax. Code § 164