Armed Response Vehicle (ARV) used by armed police
Represented by a five-point star
Incident Response Vehicle
Area Car
Traffic
Represented by a circle symbol
Dog Support Unit (DSU)
Represented by a triangle
Public Order (PO)
Personnel Carrier
Represented by a square
Police Medics
Policing vehicles such as ARVs and IRVs may be equipped with major first aid and fire equipment with officers trained on the kit aboard
Represented by a green cross
A vehicle roof will usually have the vehicle usage marking, followed by preceded by an integer which is the Police National Computer (PNC) Force Identifier. For Greater Manchester Police the number is 06.
The individual (and within each organisation, unique) Vehicle Identifier, commonly alphanumeric, should occupy a second line all by itself.