What does the tachograph record?

The tachograph is a device used in commercial vehicles to ensure compliance with driving regulations. It records the driving period, meaning how long the driver has been actively driving, which is important for monitoring legal driving hours and ensuring rest times are observed. Additionally, it records the speed travelled, which helps authorities check for speeding and overall safe driving behavior. However, the tachograph does not record fuel consumption. This helps maintain road safety and fair competition by preventing excessive driving hours and speeding.