Subtitle 2 - Lands and Waters
- CHAPTER 461 - RESERVED
- CHAPTER 461A - PUBLIC LANDS AND WATERS
- CHAPTER 461B - USE OF STATE WATERS BY NONRESIDENTS
- CHAPTER 461C - PUBLIC USE OF PRIVATE LANDS AND WATERS
- CHAPTER 462 - RESERVED
- CHAPTER 462A - WATER NAVIGATION REGULATIONS
- CHAPTER 462B - PROTECTED WATER AREA SYSTEM
- CHAPTER 463 - RESERVED
- CHAPTER 463A - UPPER MISSISSIPPI RIVERWAY COMPACT
- CHAPTER 463B - MISSOURI RIVER PRESERVATION AND LAND USE AUTHORITY
- CHAPTER 463C - HONEY CREEK PARK DEVELOPMENT
- CHAPTER 464 - RESERVED
- CHAPTER 464A - DAMS AND SPILLWAYS
- CHAPTER 464B - DAMS
- CHAPTER 465 - RESERVED
- CHAPTER 465A - OPEN SPACE LANDS
- CHAPTER 465B - RECREATION TRAILS
- CHAPTER 465C - STATE PRESERVES
- CHAPTER 466 - IMPROVEMENT OF WATERSHED ATTRIBUTES
- CHAPTER 466A - WATERSHED IMPROVEMENT GRANTS
- CHAPTER 466B - SURFACE WATER PROTECTION AND FLOOD MITIGATION
- CHAPTER 466C - IOWA FLOOD CENTER