It consists of the sites classified under the Birds Directive first adopted in 1979 (Directive 2009/147/EC) and the Habitats Directive adopted in 1992 (Directive 92/43/EEC).
Il se compose des sites classés en vertu de la directive «Oiseaux» (directive 2009/147/CE), dont la première version date de 1979, et de la directive «Habitats» (directive 92/43/CEE), adoptée en 1992.