The April 2026 HGV inspection manual update: aligning your PMI defect grading
The DVSA inspection manual from 1 April 2026 refines how defects are defined and classified. Here is why that matters for your own PMI standards and what to update.
The DVSA HGV inspection manual is the reference examiners use to decide whether a vehicle passes, fails or is prohibited. An updated version came into force on 1 April 2026, and while it is easy to file this under "annual test stuff," it has a direct bearing on how your own preventive maintenance inspections (PMIs) should be carried out and graded.
What changed and why it matters now
The updated manual refines how certain defects are described, defined and classified. Reporting on the changes notes clearer wording and more detailed categories in areas such as tyres and wheel fixings, steering and suspension wear, and updates to the sections covering speedometer/tachograph and speed limiter. The point of clearer definitions is more consistent decisions between testing stations and roadside officers. For operators, the practical consequence is that the standard a vehicle is judged against has been sharpened — so your in-house inspections should reflect the same standard, not an older interpretation.
What operators should check
Compare the current version of your PMI inspection sheet and your workshop's grading approach against the updated manual. As a general guide, look closely at the areas that changed — tyres, wheel fixings, steering and suspension, and the speedo/tachograph and speed-limiter sections — and check that your sheet's wording and pass/fail thresholds are consistent with how an examiner would now classify those defects. If your provider carries out inspections, ask them how they have reflected the April 2026 changes.
Records and evidence to keep
Keep your PMI records complete and legible, with each item assessed rather than left blank, and with defects clearly graded and linked to the repair that closed them. Where you have updated your inspection sheet to reflect the new manual, keep a dated note of that change. A maintenance history that visibly tracks the current standard is far stronger evidence of a controlled system than sheets that quietly lag behind.
The process to improve
Treat the manual update as a prompt to review your inspection documentation and your grading consistency. The improvement is not a one-off tweak but a habit: when the reference standard moves, your sheets, your provider's approach and your defect thresholds move with it. Aligning driver walkaround reporting, workshop grading and the office record around one current standard keeps everything consistent from first-use check to closed defect.
HauliK keeps the inspection schedule, driver-reported defects and the maintenance record together, so when you refine how defects are graded, the whole trail — from a walkaround finding to the closed repair — reflects one consistent, current standard rather than several out-of-step versions.
Frequently asked questions
Does the inspection manual change the law? The manual sets out how vehicles are assessed at test and how examiners classify defects. Treat this as general guidance and read the current manual on GOV.UK for the detail; it is the authoritative source.
Do I have to change my PMI sheet? There is no single mandated template, but your inspection standard should reflect the current manual. Reviewing and updating your sheet to match is good practice.
Which areas changed most? Reporting highlights tyres and wheel fixings, steering and suspension, and the speedo/tachograph and speed-limiter sections. Confirm the specifics in the current GOV.UK manual.
What if my maintenance is outsourced? Responsibility for roadworthiness stays with the operator. Ask your provider how they have reflected the April 2026 changes and keep evidence of the answer.
Related pages
Sources & further reading
Manage checks, defects and records digitally
HauliK gives UK transport operators digital walkaround checks, defect tracking, job management and driver compliance — built around DVSA-aligned workflows.