Regulations can be changed one of two ways on the tablet.
The first way is during the login process. When you come to the Review Hours screen you can change your regulations by touching the current regulations shown on the top right area of the screen.
You will be presented with a list of the available regulatory sets. Choose the regulations you want to change to.
The second way you can change your regulations is from the ELD Menu. From the Main Menu, touch the button that says DRIVER LOGS (ELD). On the ELD Menu screen, touch the current regulations set shown in the top right area of the screen.
Select the regulations set you want to change it to.