The Iowa Administrative Code includes all rules written by state agencies, including the Iowa Department of Natural Resources or DNR. The rules are written to administer state laws.

The DNR has rules regarding air quality, water supplies, water rights, wastewater permits, water quality standards, animal feeding operations (chapter 65), storm water permits and flood plain management. These rules are included under the Environmental Protection Agency's identification number 567 -Chapters 32, 38 to 49, 50 to 55, 60 to 65, and 70 to 76.

Most of the rules affecting animal feeding operations are found in Chapter 65 along with Chapters 64, 63, 61 and 60.

To look for a specific chapter:

1. Go to the Iowa Administrative Code Web site,
2. Then look under the heading, Administrative Rules Information - Iowa Administrative Code (updated bi-weekly).
3. Click on the PDF format
4. Then scroll down to ENVIRONMENTAL PROTECTION COMMISSION/567 and click on it.
5. Next click on the chapter that you want to select. The chapters are divided into sections.
6. Click on the section that contains the specific rule(s) you are locating.

Check the bulletin for publication of recent rule changes.