CSLB Cadastral Surveying common mistakes
CSLB Cadastral Surveying · Understand the traps and how to avoid them.
On a retracement question, the candidate computes a position from the record bearing and distance and reports the record distance as controlling over an original monument they found in the field.
Most candidates come from a construction-layout or mapping mindset where coordinates and distances are the deliverable. Exam stems are written to test the rules of construction, where the written call hierarchy is the opposite of what daily production work rewards, so the habitual answer feels right.
What to do instead
Before answering any boundary question, write the hierarchy of calls in the margin (natural monument, artificial monument, courses and distances, area) and explicitly state in your reasoning which call controls and why the found original monument is superior. Practice ten conflict scenarios where the answer contradicts the record measurement.
When subdividing a section, the candidate divides the section into aliquot halves and quarters geometrically and then places the fractional lots along the north and west tiers by scaling the leftover distance.
Candidates remember 'half of a half of a half' as an arithmetic operation and skip the procedural order that the original survey actually followed, which changes where the centerlines and fractional lots fall.
What to do instead
Drill the sequence until automatic: establish the centerlines of the section first, then aliquot down to the smallest required part, then handle fractional lots in the north and west tiers last against the actual section boundaries. Work several practice sections with an irregular north boundary and an excess or deficiency in the closing line.
When two deeds overlap or a deed calls conflict, the candidate resolves the conflict by splitting the difference, averaging the two locations, or prorating the excess, rather than applying seniority and the call hierarchy.
Splitting the difference looks equitable and is a real technique in some contexts, so it gets over-applied. Candidates also confuse proration of excess/deficiency (a PLS aliquot remedy) with resolving a deed conflict between adjoining owners.
What to do instead
State the rule before computing: the senior right prevails, and the junior deed takes the remainder. Only apply proration where the specific PLS or subdivision rule authorizes it. Build a one-page decision tree for overlap scenarios and answer three practice questions per branch.
The candidate traces a chain of title from the current owner backward only as far as the last deed, then treats the last recorded deed as the complete answer without checking for gaps, unrecorded interests, or a later conveyance of the same parcel.
Title work is time-consuming and candidates shortcut it because they assume the question is only about reading one document. Recording act and notice concepts get memorized as vocabulary rather than applied as a search procedure.
What to do instead
Always run the search the same direction the examiner expects: current deed back to a common grantor or root of title, checking each link and each grantor's acquisition. Then test the recording act: identify the jurisdiction's act type (notice, race-notice, race) and ask whether the later party had inquiry or record notice. Practise writing a short chain-of-title abstract under a time limit.
The candidate uses record bearings directly in a field computation without identifying the basis of bearings, and does not note or resolve a magnetic declination difference between the record survey date and the current observation.
Angles close and bearings look self-consistent, so the omission is invisible. Candidates treat bearings as absolute rather than as a relative orientation attached to a specific survey's reference meridian.
What to do instead
In every problem, first state the basis of bearings in writing (true north, magnetic with date, or an assumed record line) and, if magnetic, compute the change in declination between the record date and the observation date. Rotate into a common basis before comparing anything, and always carry a basis-of-bearings note onto map and description answers.
The candidate treats state plane or other grid coordinates as ground distances, and computes areas and boundary positions directly from grid values without applying scale and elevation factors.
Modern software displays grid coordinates in the same units as ground distances, so the two become visually indistinguishable. Candidates also do not link the coordinate epoch and realization to a location answer.
What to do instead
Always compute and show the combined factor (grid scale factor times elevation factor) and convert explicitly between grid and ground. Identify the datum, realization, and epoch in any coordinate answer, and state that coordinates are a tool for locating monuments, not the boundary itself.
The candidate designs a parcel or lot layout that closes internally and looks clean but does not reconcile to the record boundary, the adjoining deeds, or the existing monuments, and submits a map missing required content such as basis of bearings and monument set/not-set notes.
Design software rewards internal closure and visual neatness. Candidates treat the map as a drawing exercise rather than a legal document whose geometry must be tied to the record boundary and to what was actually monumented.
What to do instead
Build a checklist for every map or design answer: reconcile to record boundary and adjoining ownerships, show the basis of bearings, denote each monument as set or found, show area and closure, and confirm it meets the content requirements for the map type. Before answering, verify that the proposed parcel does not conflict with the underlying legal description or senior rights.
The candidate confuses when a Record of Survey is required with when a Corner Record may be filed, and gets filing deadlines and monument perpetuation duties wrong.
These are statutory thresholds that are memorized as isolated facts and then blur together, especially the exceptions and the 'may file in lieu of' language.
What to do instead
Build a two-column comparison table of Record of Survey versus Corner Record with triggers, exceptions, and deadlines, and answer questions by first classifying the situation, then applying the rule. Recite the statute's structure monthly rather than memorizing scattered numbers.
The candidate answers a water-boundary question using the ordinary high-water mark as a fixed line, or applies accretion rules to a sudden avulsion, or forgets that a nonnavigable boundary moves with the water.
The terms accretion, reliction, erosion, and avulsion are learned as vocabulary pairs rather than as distinct mechanisms with different legal consequences. Candidates also assume all water boundaries are fixed.
What to do instead
Memorize the four mechanisms with their tests: gradual and imperceptible movement shifts the boundary; sudden and perceptible change does not. Classify the water body first (navigable or not, tidal or nontidal, meander line versus boundary), then apply the mechanism. Work through one practice scenario per mechanism.
The candidate accepts an assignment premise that the boundary must be located at a predetermined position, or certifies map work performed by unlicensed staff they did not review, and answers accordingly because the client's need is framed as the correct outcome.
Exam stems describe business pressure without labelling it as a violation, and candidates read the scenario as a project-management question rather than an ethics question. Licensing and responsibility rules are studied as definitions rather than as conduct requirements.
What to do instead
Scan every scenario for a predetermined outcome, a requested 'favorable' opinion, or work signed by someone who did not do or supervise it, and flag it before answering. Memorize the responsibility rule: the licensee is accountable for work they sign, including supervision and review of subordinates. When a premise is improper, the correct answer is to decline or correct the premise, not to accommodate it.