Title 23. Waters
- Division 1. Central Valley Flood Protection Board
- Division 1.5. Flood Plain Management (Department of Water Resources and Reclamation Board)
- Division 2. Department of Water Resources
- Division 3. State Water Resources Control Board and Regional Water Quality Control Boards
- Division 4. Regional Water Quality Control Boards
- Division 5. Prevention of Waste, Unreasonable Use or Diversion of Water (State Water Resources Control Board and Department of Water Resources)
- Division 6. Delta Stewardship Council
- Division 7. California Water Commission