“The Rio Declaration should be given the fullest possible legal effect. One way of doing so, is incorporating environmental principles both into national law systems and policies. Principles to be included are among others the precautionary principle and the internalisation of environmental costs”.

Bron: International Environmental Conference on Codifying Rio Principles in National Legislation, Publication Series ‘milieubeheer’, 1996/ 2, The Hague, 1996. www.eel.nl/documents/den_haag.pdf