Vehicle testers can use the trade licence only on vehicles submitted to them for testing. But, that can also include trailers, accessories, and some other equipment.
Misuse of Trade Plates
The Driver and Vehicle Licensing Agency make it an offence to:
Use more than one vehicle on the same licence plates at any one time.
Keep a 'trade plated' vehicle on a road when not in use. Exceptions apply for certain emergency situations.
Use a vehicle without displaying front and rear current and valid trade plates as specified.
Display anything similar on a vehicle that could be mistaken for a trade plate or licence.
Display motor trade licence plates or trade licences other than those issued by DVLA.
Display trade plates if the trade licence has expired.
Display trade licence plates if you become ineligible to be a trade plate holder.
Use the vehicle for any purpose other than those specified in the trade plates regulation.
Use a vehicle for the general conveyance of goods or burden.
Note: Unauthorised use of trade plates can result in a fine up to £5,000 and a prison term not exceeding two years.
How to Apply for Trade Plates
You can apply for a trade licence at any point during the year. But the month you apply will determine the amount you pay and how long your licence is valid for.
For example, in January you have the option to apply for a 12 month licence. This is not the case in any other month of the year since all licenses expire on either the 30th June or the 31st of December.
If you want to get the most value from your trade licence then January is the best time to apply. If you apply in February then you pay the same rate of duty for all vehicles, but your licence is only valid for 11 months.
Choose the correct PDF application form from this and then download the document for completion: