Subject to the exceptions and exemptions in  § 395.1 :
     
    
        
        (a) 
         No motor carrier shall permit or require any driver used by it to drive a passenger-carrying commercial motor vehicle, nor shall any such driver drive a passenger-carrying commercial motor vehicle:
     
    
        
        (1) 
         More than 10 hours following 8 consecutive hours off duty; or
     
    
        
        (2) 
         For any period after having been on duty 15 hours following 8 consecutive hours off duty.
     
    
        
        (b) 
         No motor carrier shall permit or require a driver of a passenger-carrying commercial motor vehicle to drive, nor shall any driver drive a passenger-carrying commercial motor vehicle, regardless of the number of motor carriers using the driver's services, for any period after—
     
    
        
        (1) 
         Having been on duty 60 hours in any 7 consecutive days if the employing motor carrier does not operate commercial motor vehicles every day of the week; or
     
    
        
        (2) 
         Having been on duty 70 hours in any period of 8 consecutive days if the employing motor carrier operates commercial motor vehicles every day of the week.
     
    [70 FR 50073, Aug. 25, 2005]