How many days can a driver normally use a smart card for before further use will result in information being overwritten?

Explanation: The smart card will record information covering a period of about 28 days. If you use it beyond this period, some of the recorded information will be overwritten.

Category: Drivers' Hours and Rest Periods (2021)

References: The Official DVSA Guide to Driving Buses and Coaches: Section 3, The Official DVSA Guide to Driving Goods Vehicles: Section 3