The Directive also foresees a European Electronic Toll Service (EETS) , by which road users can subscribe a single contract with one EETS provider and, using a single on-board unit, pay tolls electronically throughout the whole EU. The main purpose of the EETS is to make EETS available on all electronically tolled infrastructures in the entire EU and, by limiting cash transactions at toll stations, to improve traffic flow and reduce congestion.
The Commission decision which defined the specifications of EETS entered into force in October 2009. Within three years EETS has to be available for vehicles above 3.5 tonnes and/or allowed to carry more than nine passengers (including the driver), and within five years for all other categories of vehicles. The Commission is preparing a report on the implementation of EETS.