Renault launched the Renault eco² signature in May 2007 to identify its most ecological and economical vehicles. The signature reflects Renault's aim to inform customers of the environmental progress it has made across the vehicle life cycle in the last 10 years. Taking action for the environment means looking ahead. Renault will apply stricter conditions to its eco2 label to keep pace with the major progress made by future generations of vehicles. At the same time, the Renault-Nissan Alliance is aiming for zero emissions: zero noise – zero pollutant emissions – zero greenhouse gases.

Renault eco² vehicles fulfill three ecological criteria in production, CO2 emissions and recycling:

*	Renault eco² vehicles emit less than 140 g/km of CO2. Some Renault eco² vehicles can run on biofuels, made from plant matter.
*	Renault eco² vehicles are produced at ISO 14001-certified plants. This standard rewards the progress made by manufacturing sites in reducing water and energy consumption and in cutting waste production and atmospheric and noise emissions.
*	Renault eco² vehicles have to contain at least 5% recycled plastic. They are also designed so that 95% of their mass can be recovered at end-of-life, and thus begin a second existence.