Les écotechniques sont, sous l'angle de la pollution, des "techniques de transformation et de production" qui engendrent des déchets en quantité faible ou nulle, en vue de prévenir toute pollution.
This states that, "Environmentally sound technologies protect the environment, are less polluting, use all resources in a more sustainable manner, recycle more of their wastes and products, and handle residual wastes in a more acceptable manner than the technologies for which they were substitutes.
