Chapter 40 - BOATING SPEED AND DISTANCE ZONING
- Rule 571-40.1 - Restricted areas
- Rule 571-40.2 - Uniform buoy system
- Rule 571-40.3 - Commission approval
- Rule 571-40.4 - Right for aggrieved party to appeal
- Rule 571-40.5 - Rathbun Lake, Appanoose County-zoned areas
- Rule 571-40.6 - Red Rock Lake, Marion County-zoned areas
- Rule 571-40.7 - Coralville Lake, Johnson County-zoned areas
- Rule 571-40.8 - Saylorville Lake, Polk County-zoned areas
- Rule 571-40.9 - Lake Odessa in Louisa County
- Rule 571-40.10 - Mississippi River lock and dam safety zone
- Rule 571-40.11 - Joyce Slough Area
- Rule 571-40.12 - Swan Slough, Camanche, Iowa
- Rule 571-40.13 - Massey Slough
- Rule 571-40.14 - Black Hawk County waters
- Rule 571-40.15 - Mitchell County waters
- Rule 571-40.16 - Maquoketa River
- Rule 571-40.17 - Zoning of off-channel waters of the Wapsipinicon River in Pinicon Ridge Park in Linn County
- Rule 571-40.18 - Speed restrictions on Lake Manawa
- Rule 571-40.19 - Zoning of Little Wall Lake
- Rule 571-40.20 - Lake Icaria, Adams County-watercraft use
- Rule 571-40.21 - Zoning of the Des Moines River
- Rule 571-40.22 - Upper Gar Lake, Dickinson County
- Rule 571-40.23 - Zoning of the Mississippi River, Guttenberg river mile 616, Clayton County
- Rule 571-40.24 - Mt. Ayr City Lake (Loch Ayr)
- Rule 571-40.25 - Iowa River in Iowa City, Johnson County
- Rule 571-40.26 - Zoning of the Mississippi River, Dubuque, Dubuque County
- Rule 571-40.27 - Zoning Harpers Slough, Harpers Ferry, Allamakee County
- Rule 571-40.28 - Black Hawk Lake, Sac County-zoned areas
- Rule 571-40.29 - Speed and other restrictions on Brown's Lake, Woodbury County
- Rule 571-40.30 - Speed and other restrictions on Snyder Bend Lake, Woodbury County
- Rule 571-40.31 - Speed restrictions on East Okoboji and West Okoboji Lakes in Dickinson County
- Rule 571-40.32 - Spirit Lake, Dickinson County-zoned areas
- Rule 571-40.33 - Speed restrictions on the Mississippi River, Jackson County, at Spruce Creek County Park
- Rule 571-40.34 - Speed restrictions on the Mississippi River, Jackson County, at the city of Sabula
- Rule 571-40.35 - Speed restrictions on the Greene Impoundment of the Shell Rock River
- Rule 571-40.36 - Zoning of the Iowa River, Iowa Falls, Hardin County
- Rule 571-40.37 - Zoning of Crystal Lake
- Rule 571-40.38 - Five Island Lake, Palo Alto County
- Rule 571-40.39 - Lost Island Lake, Palo Alto and Clay Counties
- Rule 571-40.40 - Ingham Lake, Emmet County
- Rule 571-40.41 - Storm Lake, Buena Vista County
- Rule 571-40.42 - Raccoon River Regional Park Lake, Polk County
- Rule 571-40.43 - Zoning of the Mississippi River, Bellevue, Jackson County
- Rule 571-40.44 - Three Mile Lake, Union County-watercraft use
- Rule 571-40.45 - Zoning of the Cedar River
- Rule 571-40.46 - Zoning of Carter Lake, Pottawattamie County
- Rule 571-40.47 - Zoning of the Mississippi River, McGregor, Clayton County
- Rule 571-40.48 - Zoning of the Mississippi River, Marquette, Clayton County
- Rule 571-40.49 - Zoning of Green Island, Jackson County
- Rule 571-40.50 - Mooring of vessels on riparian property of the state of Iowa
- Rule 571-40.51 - Little River Lake, Decatur County
- Rule 571-40.52 - Zoning of the Mississippi River, Johnson Slough, Clayton County
- Rule 571-40.53 - Zoning of the Mississippi River, Mud Lake, Dubuque County
- Rule 571-40.54 - Nighttime speed limit, Dickinson County
- Rule 571-40.55 - Zoning of Clear Lake, Cerro Gordo County
- Rule 571-40.56 - Zoning of Mississippi River, Des Moines County, city of Burlington
- Rule 571-40.57 - Zoning of Catfish Creek, Mines of Spain State Recreation Area, Dubuque County
- Rule 571-40.58 - Zoning of Lake Cornelia, Wright County
- Rule 571-40.59 - Zoning of lakes in Dickinson County
- Rule 571-40.60 - Zoning of the Mississippi River, Clayton, Clayton County
- Rule 571-40.61 - Beaver Creek safety zone
- Rule 571-40.62 - Zoning of the Mississippi River, Lansing, Allamakee County