LRP - Licenses

LRP - Regulations

LRP - Permits

Recreation - Statewide

Recreation - Trapping

Recreation - Fishing

Recreation - Hunting

Env. Protection - Management

Env. Protection - Emergency

Env. Protection - Resources

To sign up for updates or to access your subscriber preferences, please enter your contact information below.

to see if your business is eligible for confidential, non-regulatory assistance.
all DNR permits to see which may be required.
resources to help you comply.
Contact information
For information about the Small Business Environmental Assistance Program, contact:
Small Business Helpline
Toll free: 855-889-3021

Boilers and burning fuels

Boilers and other fuel combustion units have a range of environmental regulations that affect their operations. This section provides information on biofuels as well as other issues.

Environmental regulations


  • Wisconsin Small-Scale Biofuels Producer Program - There are a number of regulations that impact biofuels operations. To learn more about them, you can obtain assistance from a variety of state programs through the Small Scale Biofuels Producer Program.

Air regulations for boilers

Combustion Sources and Air Pollution Construction Permits (AM-427) [PDF] — A fact sheet describing the air pollution construction permit program and how it affects combustion sources; including calculation examples, definitions and contacts for more assistance.

The EPA published rules aimed at limiting air toxic emissions from boilers.

Waste oil management/spill prevention and cleanup

In order to prevent fuel spills or clean up after a fuel spill, there are a number of regulations a business with a boiler should follow.

Water regulations

Facilities with boilers may need to address non-contact cooling water or condensate/boiler blowdown. The water program has a General Permit to Discharge under the Wisconsin Pollutant Discharge Elimination System for this.

Last revised: Tuesday May 07 2019