System has been used in Europe for decades. Here we are limited to 9 hours driving per day (with 2x10 hour exceptions permitted per week) you have to take at least 45 min break every 4 1/2 hours and you have to take a minimum of 9 hours rest between shifts. On top of this you have an allowance for total working time, which includes things like loading and doing your daily walkabound checks of your rig, there is a special setting on your electronic device so if checked by the authorities they know exactly what you have been doing .