You require this certificate to travel in a tow truck, in regulated areas, while the tow truck is:
attending the scene of a crash
to tow a police seized vehicle under the Police Powers and Responsibilities Act 2000
From 16 April 2018, to remove vehicles from private property, where a written contract is in place between the tow truck licence holder and the property owner/occupier authorising the removal of the vehicle from the property. Once a written contract is in place, a Towing consent form must also be completed. This form is proof that the contract exists.
You are required to provide assistance to the tow truck driver when preparing a motor vehicle for towing, loading the vehicle and assist in cleaning up the scene of a crash efficiently and safely within regulated areas.