(Directive 1999/94/EC, amended by Directive 2003/73/EC and Regulation (EC) No. 1882/2003)
"The purpose of the Directive is to ensure that information relating to the fuel economy and CO2 emissions of new passenger cars offered for sale or lease in the Community is made available to consumers. This consumer information system is to be set up using the following four methods:
-attaching a fuel consumption and CO2 emissions label to the vehicle;
-producing a fuel consumption and CO2 emissions guide;
-displaying posters in car showrooms;
-including fuel consumption and CO2 emissions data in promotional material." (http://eur-lex.europa.eu/legal-content/EN/TXT/?uri=URISERV%3Al32034)