In a multi-manning operation (double crew) with two drivers on board, what is the daily rest requirement for each driver within a 30-hour timeframe?

1. Each driver must take at least 11 consecutive hours of rest within 24 hours
2. Each driver must take a new daily rest period of at least 9 consecutive hours within 30 hours of the end of the previous rest
3. The drivers may share a single 8-hour sleeping session while the vehicle is in motion
4. Each driver needs only 6 consecutive hours of rest within every 36-hour operating cycle