Cal. Gov't Code § 66466

(a) The county recorder shall have not more than 10 days within which to examine a final or parcel map and either accept or reject it for filing.
(b) If the county recorder rejects a final or parcel map for filing, the county recorder shall, within 10 days thereafter, mail notice to the subdivider and the city engineer if the map is within a city, or the county surveyor if the map is within the unincorporated area, that the map has been rejected for filing, giving the reasons therefor, and that the map is being returned to the city clerk if the map is within a city, or to the clerk of the board if the map is within the unincorporated area, for action by the legislative body. Upon receipt of the map, the clerk shall place the map on the agenda of the next regular meeting of the legislative body and the legislative body shall, within 15 days thereafter, rescind its approval of the map and return the map to the subdivider unless the subdivider presents evidence that the basis for the rejection by the county recorder has been removed. The subdivider may consent to a continuance of the matter; however, the prior approval of the legislative body shall be deemed rescinded during any period of continuance. If a map is returned to the county recorder, the county recorder shall have a new 10-day period to examine the map and either accept or reject it for filing.
(c) If the county recorder accepts the map for filing, the acceptance shall be certified on the face thereof. The map shall be stored in any other manner as will assure that the maps will be kept together, safe, and reproducible. The map shall become a part of the official records of the county recorder upon its acceptance by the county recorder for filing. If the preparer of the map provides a postage-paid, self-addressed envelope or postcard with the filing of the map, the county recorder shall provide the preparer of the map with the filing data within 10 days of the filing of the map. For the purposes of this subdivision, “filing data” includes the date, and the recording instrument number or the book or volume and page at which the map is filed by the county recorder.
(d) The fee for filing and indexing the map is as prescribed in Section 27372 of the Government Code.
(e) The original map shall be stored for safekeeping in a reproducible condition. The county recorder may maintain for public reference a set of counter maps that are prints of the original maps and produce the original maps for comparison upon demand.
(f) Upon the filing of any map, including amended maps and certificates of correction for recordation pursuant to this section or any record of survey pursuant to the Professional Land Surveyors’ Act (Chapter 15 (commencing with Section 8700) of Division 3 of the Business and Professions Code), the surveyor or engineer who prepared the document shall transmit a copy of the document, including all recording information, to the county surveyor, who shall maintain an index, by geographic location, of the documents. The county surveyor may charge a fee not to exceed the fee charged for recording the document, for purposes of financing the costs of maintaining the index of the documents.
The requirements of this subdivision shall not apply to any county that requires a document filed pursuant to this section to be transmitted to the county surveyor and requires that official to maintain an index of those documents.