If the vehicle you are driving has a tachograph and you are required to use it, you can extend the daily and weekly driving time up to a maximum of . . .
8 and 50 hours, respectively, without the total accumulated time in two weeks exceeding 90 hours .
10 hours a day, without the total accumulated time in a week exceeding 90 hours .
10 and 56 hours, respectively, without the total accumulated time in two weeks exceeding 90 hours .