Most conversations about MOT QC checks begin with the question, ‘How often should we do them?’ But there is another question that matters just as much: who is actually carrying out the check?
Pro-Tech already has guidance explaining how QC frequency should be proportionate to the tester, testing volume and identified risk. This guide takes a different angle. It looks at the person carrying out the quality check, what competence really means and what an Authorised Examiner should consider before relying on somebody’s QC findings.
A completed QC record is only useful if the person making the assessment is capable of recognising whether the MOT has been carried out correctly.
Who Is Responsible for MOT Quality Control?
The Authorised Examiner remains responsible for having an effective system to manage the quality of MOT testing at the Vehicle Testing Station. That does not mean the AE personally has to carry out every quality check.
The practical MOT QC checks can be carried out by an appropriate person, but the AE still needs confidence that the person assessing the tester has the knowledge, skills and experience to do it properly.
Does the Quality Controller Need to Be an MOT Tester?
Current DVSA guidance focuses on the competence of the person carrying out the check. In practice, the person assessing an MOT test needs sufficient current MOT knowledge and experience to recognise incorrect methods, missed defects, inconsistent standards and procedural weaknesses.
Simply having held tester status at some point is not the same as being well placed to quality-assure another tester. An AE should think about current testing experience, understanding of the relevant vehicle class, familiarity with the latest Inspection Manual and Testing Guide, and the person’s ability to explain and record findings clearly.
What Makes Someone Competent to Carry Out MOT QC Checks?
There is no useful benefit in treating competence as a box to tick. Ask whether the person carrying out the MOT QC checks can genuinely assess the quality of the test.
Useful questions include:
- Are they familiar with the current MOT Inspection Manual and Testing Guide?
- Do they have recent, relevant MOT testing experience?
- Do they understand the vehicle class being checked?
- Can they recognise both testing-standard and testing-method issues?
- Can they give constructive feedback to the tester?
- Can they distinguish an isolated mistake from a pattern that needs further action?
- Will their records clearly show what was checked, what was found and what happens next?
Using Another Tester Within Your MOT Station
For multi-tester sites, an experienced tester within the business may be able to carry out QC checks on colleagues, provided the arrangement gives the AE meaningful assurance.
The advantage is familiarity with the site, equipment and team. The risk is allowing QC to become too informal: colleagues signing each other off without enough challenge because the process has become routine.
Internal QC should still be objective, properly recorded and followed up where concerns are found.
Using an Independent MOT QC Provider
Some Vehicle Testing Stations choose an independent provider for MOT QC checks, particularly where there is only one tester, where the AE wants an outside view of testing standards or where wider quality-management support is useful.
If you use an independent provider, ask who will actually attend the site rather than relying only on the company name. What is that person’s MOT experience? Are they a current tester? What qualifications and industry experience do they hold? How do they keep their DVSA knowledge current? What happens if they identify a problem?
Independent QC should add scrutiny and useful feedback, not simply produce another completed form.
What About a Single-Tester MOT Station?
A single-tester station still needs an effective way to assure testing quality, but using an external QC provider is not automatically the only solution.
DVSA guidance allows quality management to be proportionate to the operation. Available test-quality information, performance review and other suitable controls can form part of the system. Some single-tester stations nevertheless choose independent QC because it provides an objective assessment that is difficult to reproduce alone.
The important point is being able to explain how testing quality is being monitored and why the chosen approach is appropriate.
What Should a Good Quality Controller Do When They Find a Problem?
A good QC process does not end with identifying a difference. The finding should be discussed, recorded and translated into appropriate action.
That might mean revisiting the relevant manual section, additional training or coaching, increased monitoring, a further QC check or looking at whether the same weakness appears elsewhere.
The quality controller should help the AE understand not only what went wrong, but whether the issue has been corrected.
MOT QC Checks Should Give You Useful Assurance
The purpose of MOT QC checks is not to prove that a form has been completed. It is to give the Authorised Examiner meaningful information about the standard of MOT testing taking place.
Pro-Tech provides independent MOT QC and wider quality-management support carried out by experienced MOT professionals. If you want an independent view of testing standards or help reviewing whether your current QC arrangements are giving you enough assurance, we can help.
