What limits are placed upon a Pennsylvania commercial truck driver under federal regulations?

A: On January 4, 2004, the hours of service regulation for commercial truck drivers were changed. Truck drivers may now drive up to 11 hours out of 14 hours on duty and are now required to have 10 hours off duty. The regulation still does not permit a truck driver to operate a commercial vehicle after being on duty for 60 hours in a seven-day period or 70 hours in an eight-day period. This on-duty cycle may start over whenever a driver is off for 34 consecutive hours.