As of November 1, 2014, all newly registered M1 category vehicles in the European Economic Area must be fitted with a tire pressure monitoring system.
EU regulation ECE 661/2009 specifies clearly what safety information the system must display:
- It must report a sudden loss of pressure of more than 20% within a period of ten minutes.
- It must warn the driver within 60 minutes if there is a gradual loss of pressure.
- It must function reliably at speeds of 40 km/h and more, up to the top design speed of the vehicle.