ISO/TS 17573:2003 specifies a system architecture for electronic fee collection (EFC) systems concerning vehicle related transport services such as the use of toll roads, zone access, parking and route guidance.

ISO/TS 17573:2003 does not cover person related transport services such as public transport. However, some of the clauses in ISO/TS 17573:2003 may also be applicable for fare collection.

NOTE Fare collection architecture in public transport is covered by other Working Groups in CEN/TC278 and ISO/TC204, e.g. WG3 Public Transport in CEN/TC278.

ISO/TS 17573:2003 provides the overview of, and inter-relationship among, the set of standards for design, development, testing and operation of applications in the field of EFC.

ISO/TS 17573:2003 is also applicable to the ITS Fundamental Service called Electronic Financial Transactions which is the use of electronic, or "cashless" payment systems for transportation. Hence, ISO/TS 17573:2003 covers toll collection systems, parking fee collection systems, systems for road and congestion pricing and integrated payment systems for transport services.