Agency - Department of Natural Resources
- NR 1-99 - Fish, Game and Enforcement, Forestry and Recreation (Chapter NR 1 to NR 85)
- NR 100-199 - Environmental Protection - General (Chapter NR 100 to NR 199)
- NR 200-299 - Environmental Protection - Wisconsin Pollutant Discharge Elimination System (Chapter NR 200 to NR 299)
- NR 300-399 - Environmental Protection - Water Regulation (Chapter NR 300 to NR 353)
- NR 400-499 - Environmental Protection - Air Pollution Control (Chapter NR 400 to NR 499)
- NR 400-499 - Environmental Protection Air Pollution Control (Chapter NR 445 to NR 489)
- NR 500-599 - Environmental Protection Solid Waste Management (Chapter NR 500 to NR 555)
- NR 600-699 - Environmental Protection - Hazardous Waste Management (Chapter NR 660 to NR 679)
- NR 700-799 - Environmental Protection - Investigation and Remediation of Environmental Contamination (Chapter NR 700 to NR 758)
- NR 800 - Environmental Protection - Water Supply (Chapter NR 809 to NR 860)
The following state regulations pages link to this page.
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.