Form: Declare amateur-built vehicles for Individual Vehicle Approval (IVA)

You must send a declaration along with your Individual Vehicle Approval (IVA) application if your vehicle is amateur-built, for example, a kit car.

from Driver and Vehicle Standards Agency - Activity on GOV.UK https://www.gov.uk/government/publications/amateur-built-vehicles-declaration-iva-4
via Alans Driving Lessons Batley