本文件规定:-车辆相关运输服务的电子收费（EFC）后台系统之间的接口，例如道路使用者收费、停车和访问控制；-服务提供和收费这两个角色的后端系统之间的信息交换，例如:-收费相关数据（收费申报、计费详细信息）、-管理数据和-确认数据；-传输机制和支持功能信息对象、数据语法和语义。本文件适用于任何与车辆相关的收费服务和用于收费的任何技术。根据ISO/IEC 8824-1，使用抽象语法符号1（ASN.1），在附录A中定义了与第6条所述数据元素相关的数据类型和相关编码。本文件规定了基本的协议机制，在这些机制上实现可以指定和执行复杂的传输（事务）。 除其他外，本文件未规定:-收费员（TC）或收费服务提供商（TSP）与任何其他相关方之间的任何通信；-TC和TSP元素之间不属于后台通信的任何通信；-公共交通EFC系统的接口；-任何复杂的传输（事务），即可能涉及多个应用协议数据单元（APDU）交换的相互关联的应用数据单元（ADU）序列有关支付和交换财政、商业或法律会计文件的流程；和-用于传输APDU的服务通信信道、协议和服务原语的定义。

This document specifies:- the interfaces between electronic fee collection (EFC) back-office systems for vehicle-related transport services, e.g. road user charging, parking and access control;- an exchange of information between the back end system 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.This document is applicable for any vehicle-related toll service and any technology used for charging.The data types and associated coding related to the data elements described in Clause 6 are defined in Annex A, using the abstract syntax notation one (ASN.1) according to ISO/IEC 8824-1.This document specifies basic protocol mechanisms over which implementations can specify and perform complex transfers (transactions).This document does not specify, amongst others:- any communication between toll charger (TC) or toll service provider (TSP) with any other involved party;- any communication between elements of the TC and the TSP that is not part of the back office communication;- interfaces for EFC systems for public transport;- any complex transfers (transactions), i.e. sequences of inter-related application data units (ADUs) that can possibly involve several application protocol data unit (APDU) exchanges;- processes regarding payments and exchanges of fiscal, commercial or legal accounting documents; and- definitions of service communication channels, protocols and service primitives to transfer the APDUs.