17.1 Records of Survey

The January 2025 California-Specific Professional Land Surveyor Examination Test Plan puts ensure survey documents comply with State laws and prepare State regulated maps in Domain V, Mapping and Document Preparation. Knowledge items U through V ask for the legal content of a Record of Survey (ROS). Independent OpenExamPrep teaching in this section is built from the 2026 Professional Land Surveyors' Act PDF issued by the Board for Professional Engineers, Land Surveyors, and Geologists (BPELSG), not from county cover-sheet folklore.

An ROS is a map filed with the county surveyor of the county where the field survey was made and, after examination, filed with the county recorder. BPC 8762(a) is permissive: after a field survey in conformity with the practice of land surveying, the licensed land surveyor or licensed civil engineer authorized to practice land surveying may file. BPC 8762(b) is mandatory whenever that field survey relates to land boundaries or property lines and discloses any of five conditions. Exam items usually turn on the mandatory list, not on whether a tidy interior topographic survey "feels official."

When an ROS is mandatory: BPC 8762(b)

File an ROS if the field survey discloses any of the following:

1. Material evidence or physical change that, in whole or in part, does not appear on any subdivision map, official map, or ROS previously recorded or properly filed with the county recorder or county surveying department, or on a map or survey record maintained by the Bureau of Land Management (BLM).
2. A material discrepancy with information on those same classes of maps. For this subdivision, "material discrepancy" is limited to a material discrepancy in the position of points or lines, or in dimensions.
3. Evidence that, by reasonable analysis, might result in materially alternate positions of lines or points shown on those maps.
4. The location, relocation, establishment, reestablishment, or retracement of one or more points or lines not shown on any subdivision map, official map, or ROS, whose positions are not ascertainable from an inspection of those maps.
5. Points or lines set while surveying a parcel described in a recorded deed or other instrument of title that are not shown on any subdivision map, official map, or ROS.

A common trap is treating a 0.02-foot difference from a 1920s map as automatically "material" without asking whether the discrepancy is in position or dimensions of the kind 8762(b)(2) describes. Another trap is skipping an ROS because a title company already plotted the deed. If you set corners of a recorded-deed parcel that do not appear on a recorded subdivision, official map, or ROS, 8762(b)(5) is in play even when the deed is ancient and the client only wanted "a couple of pins."

BPC 8764(c) confirms the ROS need not survey an entire property. BPC 8764(b) requires the map to show, graphically or by note, why any of the 8762(b)(1)–(5) mandatory filing provisions apply. If you cannot state the trigger on the face of the map, you are not yet ready to submit.

The 90-day filing clock and delay letter

BPC 8762(c) is a calendar you should memorize as a pair: file within 90 days after the setting of boundary monuments during the field survey or within 90 days after completion of the field survey, whichever occurs first. Setting the last lot corner on day 10 and then lingering in the office for three months is not a strategy; the monument-setting date already started the shorter clock.

BPC 8762(d) is the safety valve, not a silent extension. If the 90-day limit cannot be met for reasons beyond the control of the licensee, the period extends until those reasons are eliminated, but before the 90 days expire the licensee shall give the county surveyor a letter stating inability to comply. That letter must include an estimate of the completion date, the reasons for delay, and a general statement of location including the APN or APNs. The statute says the surveyor is not initially required to provide specific survey details. If other surveys at the same location may affect or be affected by the work, the county surveyor may then request information, which must be provided without unreasonable delay.

After examination, BPC 8762(e) sends the ROS to the county recorder. If the preparer includes a postage-paid, self-addressed envelope or postcard, BPC 8762(f) has the recorder return filing data—date, book or volume, and page—within 10 days of final filing.

Legal content: BPC 8763, 8764, and 8764.5

BPC 8763 fixes the map as a permanent-record sheet, 18 by 26 inches (or 460 by 660 millimeters), black on tracing cloth or polyester base film, with a one-inch (25 mm) entirely blank margin. That is statutory sheet geometry, not a county style preference.

BPC 8764(a) requires the ROS to show the applicable provisions of the following, consistent with the purpose of the survey:

BPC 8764.5 requires three statements on the map: a Surveyor's Statement (the map correctly represents a survey made by the licensee or under the licensee's direction in conformance with the Professional Land Surveyors' Act, naming the person who authorized the survey, signed and sealed with license number), a County Surveyor's Statement (examined in accordance with BPC 8766, signed and sealed with license number), and a Recorder's Statement (filed date, book, and page). The 2026 Act text states that no other statements may appear on the face of the map except those required or authorized by this article. Do not invent extra certificate blocks because a city handout likes them. BPC 8761 and 16 CCR 411 still require the licensee's signature, seal, and date on final land-surveying documents; 8764.5 is the ROS-specific statement set.

BPC 8762.5 is the Subdivision Map Act gate: do not file an ROS of land shown on the latest county assessment roll as a unit or contiguous units if the ROS shows a division into additional parcels, unless a certificate of Subdivision Map Act and local-ordinance compliance from the county surveyor (unincorporated) or city engineer (city) is attached. An ROS is not a substitute parcel map.

BPC 8771.5 adds another recording bar: if California Coordinate System coordinates are shown, the map must also show, or be accompanied by a map showing, the control scheme from points of known coordinates.

County examination: 20 working days, then disagreement mechanics

BPC 8766(a) gives the county surveyor 20 working days after receiving the ROS, or additional mutually agreed time, to examine (1) accuracy of mathematical data and substantial compliance with the information required by 8764, and (2) compliance with 8762.5, 8763, 8764.5, 8771.5, and 8772. BPC 8766(b) is the examinee's shield: the examination shall not require the submitting licensee to change methods or procedures used in the survey, and shall not require a field survey to verify the data shown. BPC 8766(c) still allows the county surveyor to add notes expressing opinions. BPC 8766(d) requires the examination to be performed by, or under the direct supervision of, a licensed land surveyor or registered civil engineer. BPC 8766.5 caps the examination fee at the cost of the service or $100, whichever is less, unless a county ordinance supported by a staff cost report raises that maximum.

If the map complies, BPC 8767 has the county surveyor endorse the examination statement and present the map to the recorder. If it does not, it returns with a written statement of changes needed. The licensee may make agreed changes, note matters that cannot be agreed under 8768, and resubmit within 60 days or a mutually agreed time.

BPC 8768 is the anti-hostage rule. If matters cannot be agreed within 10 working days after the licensee resubmits and requests filing without further change, an explanation of the differences is noted and the county surveyor shall present the map to the recorder, who shall file it. The parties must try to agree on the explanation language; if they cannot, both add a notation. The explanation must be specific enough to identify the factual basis for the difference. BPC 8768.5 then treats post-request filing as ministerial and authorizes a Code of Civil Procedure 1085 action, with possible costs and attorney's fees, if the county surveyor fails to timely file.

Exemptions: BPC 8765

An ROS is not required of any survey:

• (a) Made by a public officer in official capacity when a reproducible copy showing all 8764 data except the recorder's statement is filed with the county surveyor (indexed and available for public inspection).
• (b) Made by the United States BLM.
• (c) When a map is in preparation for recording or has been recorded under the Subdivision Map Act.
• (d) A retracement of lines shown on a subdivision map, official map, or ROS, where no material discrepancies with those records are found and sufficient monumentation is found to establish the precise location of property corners, provided a corner record is filed for any property corners set, reset, or found of a different character than prior records. "Material discrepancy" here is again limited to position of points or lines, or dimensions.
• (e) A survey of a mobilehome park interior lot as defined in Health and Safety Code 18210, if no subdivision map, official map, or ROS was previously filed for that interior lot and no conversion to residential ownership has occurred under Government Code 66428.1.

Worked example. You retrace Lot 12 of a 1978 recorded subdivision, recover original monuments within record dimension, and reset one rotten 2-by-2 with a tagged pipe. 8762(b) is not triggered if there is no material discrepancy and the corners are ascertainable from the subdivision map. 8765(d) points you to a corner record for the reset, not a new ROS. Change the facts: the deed you are surveying is unsubdivided, you set four new corners that appear on no recorded map, and 8762(b)(5) is triggered. Then the 90-day ROS clock, 8764 content, and 8764.5 statements control, and a corner record is the wrong primary vehicle.