Wisconsin Hazardous Air Pollutants: What you need to know

Governing Law and Regulations

National Emissions Standards for Hazardous Air Pollutants (NESHAP): 40 CFR 61, 40 CFR 63, and Wisconsin Administrative Code, Department of Natural Resources (NR) 446 to 469

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Hazardous air contaminant requirements: NR 445

Overview: NR 445.01 to 445.05

Emissions thresholds and requirements: NR 445.07

Compliance: NR 445.08

Compression ignition engines: NR 445.09

Coal handling and storage: NR 445.10

Incidental emissions: NR 445.11

Safe harbor: NR 445.06

Hazardous air contaminant emissions inventory reports and fees: NR 410.04(2) and NR 438.03


Emissions limits: NR 446.03

Major utilities: NR 446.05 to 446.08

Coal-fired electric generating units (EGUs): NR 446.09 to 446.19

Other sources: NR 446.20

Product ban: NR 299.49 and Wisconsin Statutes Annotated (WSA) 118.07(4m)

Regulatory Agency

Wisconsin Department of Natural Resources (DNR) Air, Waste, and Remediation and Redevelopment Division Air Management Program

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Wisconsin has established a state program with emissions thresholds for hundreds of hazardous air contaminants, in addition to the federally listed hazardous air pollutants (HAPs), to ensure that the established acceptable ambient concentrations are not exceeded or that acceptable cancer risks are not exceeded. In addition, Wisconsin follows the federal National Emissions Standards for Hazardous Air Pollutants (NESHAPs), including the source-specific NESHAPs, also known as maximum achievable control technology (MACT) standards. Refer to the national section HAZARDOUS AIR POLLUTANTS for more information.

Administration and ...

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More on this topic:

Governing Law and Regulations
Regulatory Agency
Comparison: State vs. Federal
State Requirements

State Requirements

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Wisconsin Hazardous Air Pollutants Resources

Hazardous Air Pollutants Products

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