California Code, Government Code - GOV § 66464

(a) Unless otherwise provided by the county, if the final map or parcel map is not subject to Section 66493, after the approval by the city of a final map of a subdivision or a parcel map, the city clerk shall transmit the map to the county recorder.

(b) If a final map or parcel map is subject to Section 66493, after all certificates or statements and security required under Section 66493 have been filed and deposited with the clerk of the board of supervisors and approved by the county, the clerk of the board of supervisors shall certify or state that the certificates and statements have been filed and deposits have been made and shall transmit the final map or parcel map to the county recorder.

(c) After the approval by the county of a final or parcel map of a subdivision within unincorporated territory, the map shall be transmitted ultimately to the county recorder.