Driver Vehicle Standards Agency
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Use this form to apply for permission to supply new large goods trailers (category O2, O3 and O4) for use on the road.
For multiple applications, you also need to send the entry into service consent for large goods trailers: multiple trailer applications form.
How to send your application
Apply online
Download and save the form on your computer.
Fill in the form.
Send the application form to the Driver and Vehicle Standards Agency (DVSA) using the service to apply for a certificate for a trailer.
Send the form by post
Download and fill in the form and post it to DVSA.
DVSA Trailer section
Trailer Section
Testing and Support Services
DVSA
The Ellipse
Padley Road
Swansea
SA1 8AN
What happens next
DVSA aims to process your application in 5 days if you have filled in the form correctly.
Print the plate and plating certificate
DVSA will email an A4 PDF document to you. This contains an A5-sized plate and an A5-sized plating certificate on the same page.
You will need to print this out and then cut the paper into its 2 parts.
You can print on any type or colour of A4 paper, as long as all parts of the plate and plating certificate are clear to read. DVSA recommends that you laminate the plate to help protect it, but it is not a requirement.
Save the PDF file and email it to the owner when you sell the trailer so they can print out replacements if the plate or plating certificate are damaged or lost in the future.
Display the plate and keeping the plating certificate
You must display the plate on the chassis of the trailer.
Fix the plate securely in a position thats easy to see and read it from. The plate must be clear enough to read at all times.
You can keep the plating certificate with the other vehicle documents.