‘daily rest period’ means the daily period during which a driver may freely dispose of his time and covers a ‘regular daily rest period’ and a ‘reduced daily rest period’: — ‘regular daily rest period’ means any period of rest of at least 11 hours. Alternatively, this regular daily rest period may be taken in two periods, the first of which must be an uninterrupted period of at least 3 hours and the second an uninterrupted period of at least nine hours, — ‘reduced daily rest period’ means any period of rest of at least nine hours but less than 11 hours; A driver may have at most three reduced daily rest periods between any two weekly rest periods.