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To help consumers choose vehicles with low fuel consumption when they buy cars, the EU has legislation on the CO2 labelling of cars - Policies - Climate Action - European Commission. Consumer information, in the form of labels showing a vehicle's fuel efficiency and CO2 emissions, must be displayed at the car's point of sale, on posters and other promotional material, and in specific guides.
Information should be provided to the consumer as follows:
- a fuel economy label for all new cars to be displayed at the point of sale;
- a poster (or a display) showing the official fuel consumption and CO2 emission data of all new passenger car models displayed or offered for sale or lease at or through the respective point of sale;
- a guide on fuel economy and CO2 emissions; and
- all promotional literature must contain the official fuel consumption and specific CO2 emission data for the passenger car model to which it refers.