Final answer:
Single driver sleeper berths can split required off-duty time into two periods under certain conditions.
Step-by-step explanation:
Single driver sleeper berths may split required off-duty time into two periods under certain circumstances. According to the Federal Motor Carrier Safety Administration (FMCSA), drivers who use a sleeper berth must take at least 8 hours in the sleeper berth, plus 2 hours either in the sleeper berth or off duty.
These 10 hours can be split into two periods, with one period being at least 8 consecutive hours in the sleeper berth and the other period being at least 2 consecutive hours either in the sleeper berth or off duty. The FMCSA restricts the ability to split the required off-duty time under certain conditions such as meeting certain criteria and having an agreement with their employer.