Council Directive of 12 December 1991 on the protection of waters against pollution caused by nitrates from agricultural sources (91/676/EEC) (published on 31 December 1991)
The European Union publishes the Directive 91/676/EEC, dated December 12, 1991, a guide document of what a should contain Code of Good Agricultural Practices (CBPA), and which obliges Member States to develop it to prevent diffuse pollution of surface and groundwater, caused mainly by nitrates of agricultural and livestock origin.
It establishes the criteria for the identification of vulnerable areas, the issues that a CBPA must include, both mandatory and complementary, the importance of carrying out, when necessary, a program to promote implementation, with training and information for farmers, maximum limits of inputs that can be applied, preparation of action programs regarding the designated vulnerable areas and reports to be submitted to the European Union Commission.
At the national level, Spain publishes the Royal Decree 261/1996, of February 16, on “protection of waters against pollution caused by nitrates from agricultural sources”, which is a guide for the competent bodies of the Autonomous Communities to prepare their CBPA, which is voluntary for farmers.
Based on this requirement, each Autonomous Community has been publishing its CBPA, with different criteria, obligations, and complementary measures; the content of which is detailed below.
Despite this regulatory framework, surface and groundwater pollution continues to increase. And recently, Spain published the Royal Decree 47/2022, of January 18, which repeals the previous one, and provides new requirements; whose content is also included below.
Currently, the Autonomous Communities would develop new CBPA that meet current requirements, constituting in turn an opportunity for a joint exchange of knowledge and experience, which can support their development from the OSR.
On November 5, 2024, during the second plenary meeting of the National Irrigation Board, The members agreed to launch a study group on codes of good agricultural practices to prevent diffuse nitrate pollution in water.