· Agència Catalana de l’Aigua
· Entidad de Medio Ambiente del Àrea Metropolitana de Barcelona
· Agència de Residus de Catalunya
· Spanish Association of Waste Management Companies
· Ministry of Enviroment
· Castilla La Mancha. Agriculture and Environment Department
· Principality of Asturias Public Works Department
· Government of Aragón. Environment
· Environment Department - Community of Madrid
· Environment Department – Autonomy of Andalusia
· Consellería de Territori i Habitatge de la Generalitat Valenciana
· Conselleria de Medio Ambiente. Xunta de Galicia
· Environment Department . Euskadi - Basque Country
· Government of La Rioja. Environment
· Environment in Castilla y León
· Autonomy of Extremadura Department of Environment, Urbanism and Tourism
· Environment Window . Navarre
· Environment. Canarias
· Environment Cantabria
· Region of Murcia. Environment
· Hydrographic Confederation of Júcar
· Hydrographic Confederation Ebro
· Hydrographic Confederation Guadiana
· Andalusian water department