Final answer:
The EZ Pass Plus system is used for electronic toll collection in various regions in the United States. Drivers can opt in and out of the system through the respective tolling authorities or online portals.
Step-by-step explanation:
The EZ Pass Plus system is used for electronic toll collection in various regions in the United States, such as the Midwest, Northeast, California, and Illinois. It allows drivers to pay for tolls automatically using a transponder device installed in their vehicles. Drivers can opt in and out of the EZ Pass Plus system by contacting the respective tolling authorities in their region or through online portals.