Council Directive 91/676/EEC (hereafter referred to as the Nitrates Directive) concerning the protection of waters against pollution caused by nitrates from agricultural sources was adopted on 12 December 1991. This report was prepared in order to provide an overview of the current situation with regard to the directive together with possible pathways for the future. It illustrates, with some case studies, the positive effects of some farm practices on the quality of water. However, it is emphasised that there is a considerable time lag between improvements at farm and soil level and a response in waterbody quality.