The Nitrates Directive After More Than 30 Years: What’s Working, and What Could Be Simplified?

The European Commission has published the first comprehensive assessment of the Nitrates Directive since its adoption in 1991. After more than 30 years in force, the regulations have been deemed to remain necessary, effective, and economically justified. However, the assessment does not mean that the problem has been solved. Water pollution from agricultural nitrates and eutrophication continue to occur in many regions of the European Union, which is why the Commission highlights the need for better implementation of the regulations and simplification of certain obligations.

The Nitrates Directive is still in effect, but it does not function the same way everywhere

The provisions of Council Directive 91/676/EEC are intended to reduce water pollution caused by nitrates from agricultural sources and prevent its further increase. The European Commission assessed the provisions of the document in terms of effectiveness, efficiency, relevance, consistency with other EU policies, and the added value of action at the European Union level. The conclusion is favorable for the legal act itself; that is, without these provisions, it would be more difficult to reduce nitrogen inputs from agriculture into water bodies. However, improvements in water quality are not uniform, and the greatest problems continue to occur in areas with a high concentration of livestock production.

The benefits of the directive outweigh the costs of its implementation

The European Commission estimates the societal costs of agricultural nitrogen pollution at 68–182 billion euros annually. The benefits resulting from the reduction of these costs thanks to the directive are estimated at 10–22 billion euros per year, while the costs of its implementation by farms and public authorities amount to approximately 2.8–3.1 billion euros. The benefits are therefore three to seven times greater than the costs of complying with the regulations.

The limit on the amount of nitrogen from animal manure was analyzed separately; as a general rule, it amounts to 170 kg N per hectare per year in areas covered by action programs. The European Commission recognized that this limit remains an important element of water protection, particularly in regions where livestock farming predominates. It is worth noting that the limit specified in the directive alone does not guarantee that the required water quality will be achieved if pressure from agriculture remains very high.

The simplifications are intended to address implementation, not the water protection objectives

The European Commission points out that some of the measures implemented by Member States can be simplified without compromising environmental objectives. This applies, among other things, to the administrative obligations imposed on small farms, the strict deadlines for carrying out certain work on agricultural land, and the management of nutrients, which should take local conditions into account more fully.

It is also important to better align the Nitrates Directive with Directive 2000/60/EC, which establishes a framework for Community action in the field of water policy (the Water Framework Directive). By the end of 2027, the monitoring cycles of both instruments are expected to align, which should simplify reporting and reduce duplication of certain obligations.

The assessment is therefore neither a proposal to amend the directive nor an announcement of a reduction in water protection requirements. In its analysis, the Commission concludes that the current regulations continue to serve their purpose, but their effectiveness depends on how they are implemented in individual countries. Therefore, the simplifications are intended primarily to address application and reporting procedures and will not involve abandoning the fundamental mechanisms for limiting nitrogen runoff from agriculture into water bodies.

Sources:

European Commission, “EU law on nitrate pollution remains effective, with scope for smarter implementation,” July 15, 2026.
https://ec.europa.eu/commission/presscorner/detail/en/ip_26_1594

European Commission, “Executive Summary of the Nitrates Directive Evaluation,” SWD(2026) 235 final, July 15, 2026.
https://environment.ec.europa.eu/publications/nitrates-directive-evaluation_en

European Commission, “Country Staff Working Document on the Implementation of the Nitrates Directive – Poland. Period: 2020–2023,” SWD(2026) 232 final, July 15, 2026.
https://environment.ec.europa.eu/publications/implementation-nitrates-directive-country-reports_en