Survey acceptance criteria decide whether a poor delivery is refused or argued about. An independent check is far easier to commission when the criteria already say what the work should have met. Written into the appointment, they give both parties the same test before any work starts, and they are one of the cheapest protections a client has.
Quick Answer
Write seven clauses into the appointment: the deliverable and its format, the reference system, the evidence of checking that must accompany the delivery, the condition that triggers rework, the review period, the named person who signs off, and what happens if the delivery fails. Each clause closes a specific argument before it can start. A general instruction to "agree acceptance criteria" closes none.
This article covers what goes into the appointment. What evidence should arrive with the finished survey is covered in our survey handover checklist, which applies after delivery rather than before work begins.
Seven clauses for survey acceptance criteria
Each clause below names what a missing clause allows to happen, because that is the clearest way to see why it belongs in the appointment.
| Clause | What its absence allows |
|---|---|
| 1. The deliverable and its format | A delivery in a format nobody can open |
| 2. The reference system | Results on a system that does not match the design |
| 3. The evidence of checking | A result nobody can confirm without measuring again |
| 4. The condition that triggers rework | Every shortfall becomes a negotiation |
| 5. The review period | Acceptance by silence, or rejection months later |
| 6. The named person who signs off | Nobody with authority to accept or refuse |
| 7. What happens on failure | A dispute with no agreed next step |
Clauses 1 and 2: what is delivered, and on what
Name each deliverable, the file format and version, and the reference system in words and by code. A delivery that is correct but unreadable, or correct on the wrong system, is not useful to the person who receives it. If several parties will use the files, name the format each one needs, rather than the one the surveyor normally sends. Check that the format list matches the software your design team and contractors actually use.
Clause 3: the evidence of checking
Require the control listing, the check observations, the instrument records and a statement of exclusions to arrive with the drawings. That evidence is what lets anyone confirm the result later.
Clauses 4 to 7: the procedure
State the condition that triggers rework, how long the client has to review, who signs off, and what happens when a delivery fails. Together, these turn a disagreement into a procedure.
The rework trigger deserves the most care. Write it as a condition anyone can test: a deliverable missing, a format that will not open, checking evidence absent, or a check result outside the specified tolerance. Avoid triggers that depend on opinion, such as "to the client's satisfaction", because they invite exactly the argument the clause was meant to prevent.
The review period matters almost as much. Too short, and nobody has time to open the files before acceptance happens by default. Too long, and the surveyor may have left site, so any correction costs a return visit. Agree a period that matches how long your team actually needs, and name who starts the clock.
Key point
Survey acceptance criteria work because they are agreed before the result is known. Written after delivery, the same words become a position in a dispute.
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Ask us to review the clausesFitting the criteria to the work
The seven clauses apply to every survey, but what each one says should change with the type of work being appointed.
On volumetric surveys, the evidence clause should cover how repeat surveys are made comparable. Underground, the reference clause should name the control the mine has issued for its underground workings. Where a tolerance is specified, refer to it in the rework clause and say how compliance will be shown, rather than leaving it to be argued from the drawings.
On construction work, survey acceptance criteria often sit inside a larger contract. Check that they are not contradicted elsewhere, for example by a general clause that deems all deliverables accepted on payment. Where two clauses disagree, the dispute starts from that disagreement rather than from the survey.
The same clauses also make quotes easier to compare, as described in our article on survey quotation requirements. Every provider then prices the same deliverable, the same evidence and the same test.
Key point
One set of clauses, adjusted for the type of work, is enough. The adjustment is in what each clause names, not in how many clauses there are.
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Get a survey quoteWhere survey cannot help you
Clear survey acceptance criteria make a delivery testable, but they cannot make up for a scope that was never defined.
Criteria cannot test a deliverable nobody named, and they cannot fix a reference system that was never agreed. Survey acceptance criteria also cannot judge whether the scope was the right one. A delivery can pass every clause and still not answer the design question, which is why the scope deserves the same attention as the test. They also do not replace the choice of provider. Our guide on choosing a survey company covers the screening step that comes first. In South Africa, the South African Geomatics Council regulates the geomatics profession, and it is reasonable to name in the appointment who takes professional responsibility for the work.
A delivery that does not meet the criteria?
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Survey appointments with acceptance criteria agreed before work starts, so delivery is a test, not a debate.
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