11. In this Schedule–
(a)references to an immobilisation device are to a device or appliance which is–
(i)designed or adapted to be fixed to a vehicle for the purpose of preventing it from being driven or otherwise put in motion; and
(ii)of a type approved by the Department for use for that purpose; and
(b)references to an immobilisation notice are to a notice fixed to a vehicle in accordance with the regulations.