Final answer:
The maximum amount of hours a CDL driver can drive a CMV in one shift is 11 hours.
Step-by-step explanation:
The maximum amount of hours a CDL (Commercial Driver's License) driver can drive a CMV (Commercial Motor Vehicle) in one shift is 11 hours.
This regulation is enforced by the Federal Motor Carrier Safety Administration (FMCSA) in the United States.
After driving for 11 hours, CDL drivers are required to take a rest period of at least 10 consecutive hours before they can resume driving.
However, the 14-hour limit also comes into play, which is a window during which driving is allowed. The 11 hours of driving must be within a period of 14 consecutive hours after coming on duty, following 10 consecutive hours off duty. The 14-hour period is not extendable with off-duty time, meaning once a driver starts their day, they have to complete their driving within the next 14 hours.
It’s important to note that drivers are also subject to a weekly maximum amount of hours, which can be either the 60/7 rule or the 70/8 rule. This means a driver cannot drive after being on duty for 60/70 hours in a period of 7/8 consecutive days.