What is the purpose of the driver’s card?

You are correct. The driver’s card is used to record and prove a driver's periods of driving, rest, and work. This is especially important for professional drivers of trucks and buses. The purpose is to ensure compliance with legal regulations on driving and rest times, helping to prevent driver fatigue and improve road safety. It is not proof of toll payment or a replacement for your driving licence. Knowing this helps you understand the control of work hours in commercial transport.