Defines: - the interfaces between electronic fee collection (EFC) systems for vehicle related transport services, e.g. road user charging, parking and access control; it does not cover interfaces for EFC systems for public transport; an EFC system can include any EFC system, e.g. including systems that automatically read licence plate numbers of vehicles passing a toll point, - an exchange of information between the central equipment of the two roles of service provision and toll charging, e.g. charging related data (toll declarations, billing details), administrative data, and confirmation data, - transfer mechanisms and supporting functions, - information objects, data syntax and semantics, - examples of data interchanges, and - an example on how to use this International Standard for the European Electronic Tolling Service (EETS).