Guidance of international water-related government agencies.
- Ministry of Land, Infrastructure and Transport
- Ministry of Environment
- Ministry of Agriculture, Food and Rural Affairs
- Ministry of Public Safety and Security
- Australian Government Department of the Environment
- Ministry of Land, Infrastructure, Transport and Tourism
- United States Department of Agriculture (USDA)
- United States Geological Servey (USGS)
- Environment Canada
- Met Office
- Department of Environment, Food & Rural Affairs
- Environment Agency
- Department of Water and Sanitation
- General Directorate of State Hydraulic Works
- National Water Agency
- Geological Survey of Brazil
- Geological Survey of Denmark and Greenland
- Danish Ministry of the Environment
- Departement de l’Eau
- Ministry of Water Resources
- Ministry of Water Resources and Irrigation
- National Water Research Center
- PUB Singapore's National Water Agency
- Government of the Netherlands
- The Austrian Federal Ministry of Agriculture, Forestry, Environment and Water Management
- Federal Ministry for the Environment, Nature Conservation and Nuclear Safety
- Spanish Ministry of Agriculture, Food and the Environment
- Federal Agency of Water Resources
- Ministry of the Environment
- Ministry of Agriculture and Forestry
- Italian Ministry for the Environment and Land and Sea
- AEAG(Agence de l'eau Adour-Garonne)
- AEAP(Agence de l'eau Artois Picardie)
- AELB(Agence de l'eau Loire-Bretagne)
- AERM(Agence de l'eau Rhin-Meuse)
- AERMC(Agence de l'eau Rhone Mediterranee Corse)
- AESN(Agence de l'eau Seine-Normandie)
- RID(Royal Irrigation Department)
- Department of Public Works and Highways
- Pagasa(Philippine Atmospheric, Geophysical and Astronomical Services Administration)
- DMH(Department of Meteorology and Hydrology)
- MPWT(Ministry of Public Works and Transport)
- Ministry of Agriculture and Water Ressources