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Guide

Defect categories: dangerous, major and minor

Not every defect means the vehicle stays in the yard. Grading them helps drivers and the office make the same call.

Updated 1 November 2026 · 2 min read

A common grading

These are similar to the terms used in the MOT. Adapt them to your own policy and write it down.

Decide in advance

Write who can authorise a vehicle to run with a given defect. Drivers should never be left to make that decision alone.

Severity in Kovi

When a driver reports a defect in Kovi they choose a severity, such as Major (fix soon), and add a note and photo. The office sees it with that severity and can assign it and close it.

General information for Great Britain, not legal advice. Rules change, so check GOV.UK and DVSA for the latest. Northern Ireland has its own rules.

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