the problem is that anything you require the employees to do is work. So driving from jobsite to jobsite is a required job function and therefore they have to be paid for that time. Now you can make them do some kind of paperwork or something during the drives if you want, because they are on the clock (except for the driver of course, he is already working during the drivetime). Bottom line is, you cannot tell an employee that you won't pay them for time riding between jobs, unless they are meeting you at the jobs with their own vehicles. Unless of course they are a sub and are using their own vehicle, then you can say that start time is when they get to the jobsite and when they leave the jobsite, but then they can't be stopping at the shop for equipment either.