Apply for identification numbers for new-build trailers

You need to apply for a trailer identification number (a 'ministry number') to be allocated to a new-build trailer if you'll be applying to use it on the road.


Application for identification numbers for new build trailers

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Use this form to apply for a trailer identification number (a ‘ministry number’) to be allocated to new-build trailers (category O2, O3 and O4) before you apply for permission to supply the trailer for use on the road.

Your application may be delayed if you don’t fill in all relevant sections.

Send the form online

Send the form and pay the fee using the service to apply for a vehicle test or certificate for a lorry or trailer.

Published 26 June 2014
Last updated 24 April 2018 + show all updates
  1. Updated the email address on the application form for enquiries.
  2. First published.