How many allowed per day for truck drivers?

Truck drivers in the U.S. are subject to the Hours of Service regulations set by the Federal Motor Carrier Safety Administration (FMCSA). Generally, they may drive a maximum of 11 hours after 10 consecutive hours off duty. Additionally, they cannot drive after 14 hours of being on duty, and must take at least a 30-minute break after 8 hours of driving. These regulations aim to ensure safety by preventing driver fatigue.