IWRB is responsible for planning for the conservation, development, use, and management of water resources in the state of Idaho. Planning is accomplished through three primary programs.
- Idaho State Water Plan – Contains policies which are the guiding framework for water resources in Idaho.
- Comprehensive Basin Planning – Inventorying and assessing regional water resources in a specific river basin, waterway, aquifer, or geologic areas so that the values are protected.
- Comprehensive Aquifer Planning – Addressing future water needs and proactively avoiding conflicts over competing water needs in the future.