Mobility scooters and powered wheelchairs: the rules

Rules for class 3 invalid carriages

Class 3 invalid carriages must have the following features:

  • a maximum unladen weight of 150kg
  • a maximum width of 0.85 metres
  • a device to limit its speed to 4mph
  • a maximum speed of 8mph
  • an efficient braking system
  • front and rear lights and reflectors
  • direction indicators able to operate as a hazard warning signal
  • an audible horn
  • a rear view mirror
  • an amber flashing light if it’s used on a dual carriageway

You could be stopped by the police if your class 3 invalid carriage doesn’t have these features.