The European Commission published an evaluation of the Nitrates Directive (Council Directive 91/676/EEC) on 15 July 2026, assessing its performance in protecting water quality from agricultural nitrate pollution. The staff working document (SWD(2026)234) covers the period from the directive's adoption in 1991 to approximately 2023 and examines its effectiveness, efficiency, relevance, coherence, and EU added value across all Member States.
The evaluation concludes that the directive has been a key EU tool against agricultural nitrate pollution, but its effectiveness varies significantly due to local conditions and implementation challenges. Key measures assessed include monitoring water pollution, designating nitrate vulnerable zones (NVZ), and enforcing mandatory action programmes with balanced fertilisation and limits on livestock manure application. The analysis draws on external studies, a public consultation, and Member State data from implementation reports.
The Commission announced on 10 December 2025 that it would complete this evaluation and take follow-up measures. The evaluation now assesses whether costs for public administrations and farms are proportionate and whether environmental benefits outweigh costs. It also examines the directive's coherence with related EU laws such as the Water Framework Directive and the Common Agricultural Policy, and its relevance to current needs like clean water, sustainable agriculture, and climate commitments.
For EU farmers, the directive imposes compliance costs for manure management and fertilisation practices, but benefits include improved soil health and long-term productivity. National authorities face administrative burdens in monitoring and enforcing NVZs, but gain a framework for water quality management. Environmental NGOs see the directive as essential but urge stronger enforcement and updated measures to address climate and biodiversity goals. EU water utilities benefit from reduced nitrate pollution, lowering treatment costs. The evaluation's findings may inform future revisions to strengthen implementation and adapt to evolving agricultural and environmental challenges.
The Commission is expected to propose follow-up measures based on the evaluation, which will be debated by the European Parliament and the Council. The evaluation may feed into the ongoing review of the Common Agricultural Policy and the Water Framework Directive.