What is the maximum permissible time at the wheel per day when driving a truck with a permissible total mass of 16 t?

According to German traffic regulations for truck drivers, the maximum daily driving time is generally 9 hours. However, twice a week, this limit can be extended to 10 hours. This rule helps ensure that drivers get enough rest to maintain safety on the road. Driving longer than these limits without adequate breaks is not permitted, as it increases the risk of fatigue-related accidents. Therefore, the correct rule is 9 hours per day, with the possibility of two days per week where driving can be extended to 10 hours.