Source: MovingOn Blog
You may have seen a new version of test certificates now in use for trucks, trailers, buses and coaches – the VTG5, VTG5A and VTP20. These test certificates have been updated to comply with EC Roadworthiness Directive 2010/48.
The directive means that test documents must capture three new elements of information not previously recorded by these certificates.
https://movingon.blog.gov.uk/2014/03/10/updates-to-test-certificates/