Skip to main contentV55/5
Last reviewed: 6 July 2026
V55/5 form · Box 38
Mass in Service (kg)
What goes in box 38
Box 38 of the DVLA V55/5 form is for mass in service (kg).
Take this from the Certificate of Conformity or get it from the vehicle manufacturer. On EU registration certificates it's field G.
What to enter
| Field | Type | Required? |
|---|---|---|
Mass in Service (kg) Take this from the Certificate of Conformity or get it from the vehicle manufacturer. On EU registration certificates it's field G. | 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.
Filling in box 38 right now?
Our guided V55/5 tool validates this box against DVLA rules as you type — and every other box too. £14 one-time, full refund if the DVLA rejects it.
Start your V55/5 →