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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 Hotline
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


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: Thursday September 06 2018