Vehicle siren beacon colours

BLUE

Ambulance (including lone paramedics on equipped motorcycles and organ transportation)
Police
Fire service
Coastguard
Mountain or cave rescue
Bomb disposal (military or civilian)

GREEN

Doctor (any vehicle used by a medical practitioner registered by the General Medical Council whether with full, provisional or limited registration)

AMBER

Statutory immobilisation or removal vehicle
Breakdown vehicle
Road clearance or maintenance vehicle (including maintenance of any apparatus in, on, under or over a road)
Refuse collection vehicle
Vehicles with a maximum speed of less than 25mph (including its trailer)
Vehicles with an overall width exceeding 2.9 metres
Escort vehicle when used below 25mph
HMRC fuel testing vehicle
Surveying vehicle

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