The following Functional Areas are associated with the "In Vehicle Electronic Toll Tags" element.   Each functional area includes a brief description and a bulleted list of detailed functions.   The common icon provides a link to other systems in the region that include the same functional area.

Vehicle Toll/Parking Interface

On-board systems to support paying toll without stopping and pay for parking without the use of cash through the use of an active tag interface and debit/credit card interface.

• The vehicle shall respond to requests from toll collection equipment for tag information including credit identity, stored value card cash, etc.
• The vehicle shall provide an interface with the traveler card / payment instrument carried on-board the vehicle (tag) - to exchange identity information and payment transactions.