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Last reviewed: 6 July 2026
V55/5 form · Box 20
Width (mm)
What goes in box 20
Box 20 of the DVLA V55/5 form is for width (mm).
Take this from the Certificate of Conformity. Not needed if you're providing an IVA or GB conversion certificate, but give it if you have it.
What to enter
| Field | Type | Required? |
|---|---|---|
Width (mm) Take this from the Certificate of Conformity. Not needed if you're providing an IVA or GB conversion certificate, but give it if you have it. | number | Optional |
Source
This page is generated from the same field definitions our V55/5 tool validates against, mapped to the official DVLA guidance.
V355/5 official guidance (GOV.UK)v55-5.com is an independent service and is not affiliated with the DVLA.
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