The European electronic toll service shall be brought into service pursuant to Article 3(1). Operators shall make available to interested users on-board equipment which is suitable for use with all electronic toll systems in service in the Member States using the technologies referred to in paragraph 1 and which is suitable for use in all types of vehicle, in accordance with the timetable set out in Article 3(4). This equipment shall at least be interoperable and capable of communicating with all the systems operating in the Member States using one or more of the technologies listed in paragraph 1. The detailed arrangements in this respect shall be determined by the Committee referred to in Article 5(1), including arrangements for the availability of on-board equipment to meet the demand of interested users.

It is recommended that new electronic toll systems brought into service after the adoption of this Directive use the satellite positioning and mobile communications technologies listed in paragraph 1. In respect of the possible migration to systems using such technologies by systems using other technologies, the Commission, in liaison with the Committee referred to in Article 5(1), shall draw up a report by 31 December 2009 . This report shall include a study of use of each of the technologies referred to in paragraph 1, as well as a cost-benefit analysis. If appropriate, the Commission shall accompany the report with a proposal to the European Parliament and the Council for a migration strategy.

Without prejudice to paragraph 1, on-board equipment may also be suitable for other technologies, on condition that this does not lead to an additional burden for users or create discrimination between them. Where relevant, on-board equipment may also be linked to the vehicle's electronic tachograph.

Where Member States have toll systems, they shall take the necessary measures to increase the use of electronic toll systems. They shall endeavour to ensure that, by 1 January 2007 at the latest, at least 50 % of traffic flow in each toll station can use electronic toll systems. Lanes used for electronic toll collection may also be used for toll collection by other means, with due regard to safety.

Interoperability work on existing toll technologies undertaken in connection with the European electronic toll service shall ensure the full compatibility and interfacing of those technologies with the technologies referred to in paragraph 1 and of their equipment with each other.

Member States shall ensure that processing of personal data necessary for the operation of the European electronic toll service is carried out in accordance with the Community rules protecting the freedoms and fundamental rights of individuals, including their privacy, and that, in particular, the provisions of Directives 95/46/EC and 2002/58/EC are complied with.