Vehicle defect reporting requirements: what DVSA expects

By the Smart Strix team · Updated 15 July 2026

A defect report only protects you if it travels the whole loop — found, reported, assessed, fixed, signed off — and the paperwork proves it 15 months later.

In short: DVSA's Guide to Maintaining Roadworthiness expects drivers to report vehicle defects in writing (paper or digital) as soon as they are found, expects operators to assess and rectify them before the vehicle is used, and expects the whole trail — report, decision, repair, sign-off — to be kept for at least 15 months. Nil-defect reporting is optional under current guidance, though many fleets keep it for evidential strength. Smart Strix, built in the UK for 2–50 vehicle fleets, provides this summary for orientation; the authoritative wording lives in DVSA's published guidance, which you should check for changes.

What counts as a reportable defect?

Anything that could affect the safe or lawful operation of the vehicle: braking faults, steering play, tyre damage or illegal tread, lighting failures, mirror or glass damage, fluid leaks, exhaust problems, insecure bodywork, load restraint faults, tail lift defects, and warning lamps that stay lit. Cosmetic scuffs are worth noting for fleet management reasons, but the reporting duty centres on roadworthiness. A useful test for drivers: would an examiner at the roadside care? If in doubt, report it — the system exists so that a mechanic, not the driver, decides severity.

How should drivers report defects?

DVSA guidance asks for written reports made promptly — at the daily walkaround, and immediately when a fault develops on the road. A compliant report captures:

vehicle registration or identifier and odometer reading
date and time the defect was found
the driver's name and a description of the fault
who the report was passed to for assessment
space for the rectification entry and sign-off

Format is flexible — a duplicate pad, a defect book or an app entry all satisfy the guidance provided the record is legible, attributable and cannot quietly vanish. Photographs strengthen a report considerably, both for the mechanic diagnosing remotely and as evidence of exactly what was found and when. The report normally originates from the daily first-use inspection, so pair this page with our printable walkaround check list.

Is nil-defect reporting required?

No — and this is the point operators argue about most. Current DVSA guidance does not insist on a written "nil" report for every defect-free check; what it insists on is a system that demonstrates checks genuinely happen each day a vehicle is used. That leaves two legitimate designs:

Report-by-exception: drivers record only defects. Simpler, less paper, but the operator must be able to prove through other means (gate logs, app timestamps, supervision) that checks occurred on the silent days.
Nil-defect recording: every check produces a record even when nothing is wrong. More admin, but the audit trail is continuous and self-evidencing — one reason many O-licence holders and FORS-accredited fleets choose it.

Digital systems have largely dissolved the trade-off, since logging a clean check takes seconds and timestamps itself. Whichever route you take, write it into your maintenance system documentation so an examiner sees a deliberate choice rather than an accident.

What must happen after a defect is reported?

Reporting is the start, not the end. DVSA expects a closed loop:

Assessment by a responsible person: is the vehicle safe and legal to use? Safety-critical defects take it off the road immediately.
Rectification before further use for anything affecting roadworthiness, carried out by a competent person.
Recording of the repair: what was done, by whom, when, with parts or job-sheet references where relevant.
Sign-off linking the fix back to the original report, so the trail reads found → reported → repaired → cleared.

The most common failure at DVSA investigations is not missing reports — it is reports with no visible outcome. A defect logged three times across three weeks with no rectification entry tells an examiner the system is decorative. If a vehicle is deliberately kept running with a minor defect, record that decision and who made it.

How long must defect records be kept?

Fifteen months at minimum, per DVSA's maintenance guidance — the same retention that applies to safety inspection sheets and the wider maintenance file described in our fleet maintenance records guide. The retention exists so DVSA can review a rolling window of your systems at an investigation or public inquiry. Paper and electronic storage are both acceptable; the tests are completeness, legibility and retrievability. Fleets running vans outside O-licensing are not bound by the 15-month rule, but matching it costs little and gives a duty-of-care file that answers questions before they are asked.

Smart Strix keeps defect evidence organised rather than scattered: check-in and check-out photos against each vehicle, maintenance history entries, inspection due dates and document expiry alerts, all searchable when an auditor asks. See vehicle checks and maintenance.

Who is accountable when defect reporting fails?

Both ends of the chain. Drivers hold personal responsibility for the condition of the vehicle they take out and can be prosecuted for using a dangerous vehicle; operators are accountable for the system — training, time to check, functioning reporting channels and follow-through. At the roadside, an examiner who finds a defect the morning check should have caught will typically ask the driver for the day's report, then pursue the operator's records afterwards. Repeated findings depress an operator's OCRS score, which raises the odds of being stopped again — a feedback loop that rewards operators who fix their reporting culture early.

Frequently asked questions

Are written defect reports a legal requirement?

For O-licensed operators, prompt written defect reporting is part of the licence undertakings and DVSA's maintenance guidance, so failing to have it risks licence action. For vans outside O-licensing there is no specific statute, but written reports are the accepted evidence of duty-of-care compliance. Check current DVSA guidance.

Do drivers have to record checks when there are no defects?

Not under current DVSA guidance — nil-defect reporting is optional, provided your system can still prove daily checks take place. Many operators record every check anyway because a continuous trail is easier to defend at audit.

How quickly must a defect be fixed?

Anything affecting roadworthiness must be rectified before the vehicle is used again. Genuinely minor items can be scheduled, but the deferral decision, who made it and the eventual repair should all be recorded.

What should a defect rectification record include?

The work done, who did it, the date, and a link back to the originating defect report — job sheets or invoices from a repairer satisfy this well. The loop from fault to fix is what DVSA examiners trace.

How long do defect and rectification records need to be kept?

At least 15 months, per DVSA's Guide to Maintaining Roadworthiness. Electronic storage is acceptable if records are complete, legible and retrievable on request.

Can defect reports be done through an app?

Yes — DVSA accepts electronic defect reporting as long as entries are attributable, timestamped and tamper-evident. Photos taken at the point of discovery add weight to the record.

What happens if DVSA finds a defect at the roadside that was not reported?

Expect a prohibition on the vehicle if it is dangerous, possible fixed penalties, and follow-up interest in your systems. Roadside findings also worsen your OCRS score, increasing future stop frequency.