In a multi-manning (two-driver crew) coach operation, what is the maximum calculation timeframe within which each driver must complete a daily rest period, and what is its minimum duration?

1. Within 24 hours of the shift start, each driver must take an 11-hour rest
2. Within 30 hours of the end of a daily or weekly rest period, each driver must have taken a new daily rest period of at least 9 uninterrupted hours
3. Within 36 hours, each driver must take a 6-hour break in the passenger cabin
4. Within 48 hours, both drivers must take a combined 18-hour rest at the destination