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Air Pollution Control Rules

Pine grosbeak bird and blue sky

Wisconsin's State Legislature creates and revises the Wisconsin Statutes (Wis. Stats.), while state agencies such as the DNR create and revise the rules required and authorized by those statutes. These agency rules constitute the Wisconsin Administrative Code (Wis. Adm. Code).

Federal law

Many air pollution control requirements in state statutes and rules reflect mandates contained in the Federal Clean Air Act [exit DNR]. Also under the Clean Air Act, the U.S. Environmental Protection Agency (EPA) created federal regulations that Wisconsin air pollution control rules must reflect.

Proposed rules

Public participation is a critical component of agency rulemaking and we value your involvement in the DNR's rulemaking activities. There are numerous opportunities for you to participate in the DNR rulemaking process.

Current rules

The table below lists all current Wisconsin air pollution control rules in Wisconsin Administrative Code.

Note: All links are PDFs and exit the DNR website.

Chapter, Title and Link [PDF exit DNR]
NR 400 - Air Pollution Control Definitions
NR 401 - Nonattainment Areas
NR 403 - Local Air Pollution Control Programs
NR 404 - Ambient Air Quality
NR 405 - Prevention of Significant Deterioration
NR 406 - Construction Permits
NR 407 - Operation Permits
NR 408 - Construction Permits for Direct Major Sources in Nonattainment Areas
NR 409 - Acid Rain Portion of Operation Permits
NR 410 - Air Permit, Emission and Inspection Fees
NR 415 - Control of Particulate Emissions
NR 417 - Control of Sulfur Emissions
NR 418 - Sulfur Emission Control in Specific Geographic Areas
NR 419 - Control of Organic Compound Emissions
NR 420 - Control of Organic Compound Emissions from Petroleum and Gasoline Sources
NR 421 - Control of Organic Compound Emissions from Chemical, Coatings and Rubber Products Manufacturing
NR 422 - Control of Organic Compound Emissions from Surface Coating, Printing and Asphalt Surfacing Operations
NR 423 - Control of Organic Compound Emissions from Solvent Cleaning Operations
NNR 424 - Control of Organic Compound Emissions from Process Lines
NR 425 - Compliance Schedules, Delays, Exceptions and Internal Offsets for Organic Compound Emission Sources in Chs. NR 419 to 424
NR 426 - Control of Carbon Monoxide Emissions
NR 427 - Control of Lead Emissions
NR 428 - Control of Nitrogen Compound Emissions
NR 429 - Malodorous Emissions and Open Burning
NR 431 - Control of Visible Emissions
NR 432 - Allocation of Clean Air Interstate Rule NOx Allowances
NR 433 - Protection of Visibility by Application of Best Available Retrofit Technology
NR 436 - Emission Prohibition, Exceptions, Delayed Compliance Orders and Variances
NR 437 - Voluntary Emission Reduction Registry
NR 438 - Air Contaminant Emissions Inventory Reporting Requirements
NR 439 - Reporting, Recordkeeping, Testing, Inspection and Determination of Compliance
NR 440 - Standards of Performance for New Stationary Sources
NR 445 - Control of Hazardous Air Pollutants
NR 446 - Control of Mercury Emissions
NR 447 - Control of Asbestos Emissions
NR 448 - Control of Beryllium Emissions
NR 449 - Control of Vinyl Chloride Emissions
NR 460 - Emission Standards for Hazardous Air Pollutants for Source Categories - General Provisions
Appendix N - General Provisions Applicability to Chapter NR 463 Subchapter I
Appendix S - General Provisions Applicability to Chapter NR 464
Appendix T - General Provisions Applicability to Chapter NR 469
Appendix JJ - General Provisions Applicability to Chapter NR 465 Subchapter I
Appendix KK - General Provisions Applicability to Chapter NR 466
Appendix RRR - General Provisions Applicable to Chapter NR 463 Subchapter II
Appendix JJJJ - General Provisions Applicable to Chapter NR 466 Subchapter III
Appendix MMMM - General Provisions Applicability to Chapter NR 465 Subchapter V
Appendix NNNN - General Provisions Applicability to Chapter NR 465 Subchapter III
Appendix PPPP - General Provisions Applicability to Chapter NR 465 Subchapter IV
Appendix DDDDD - General Provisions Applicability to Chapter NR 462
Appendix EEEEE - General Provisions Applicability to Chapter NR 463 Subchapter III
NR 462 - National Emission Standards for Hazardous Air Pollutants for Industrial, Commercial, and Institutional Boilers and Process Heaters
NR 463 - National Emission Standards for Hazardous Air Pollutants for Metals Treating and Processing
NR 464 - National Emission Standards for Hazardous Air Pollutants from the Pulp and Paper Industry
NR 465 - National Emission Standards for Hazardous Air Pollutants for General Surface Coating Processes
NR 466 - National Emission Standards for Hazardous Air Pollutants for Printing and Flexible Substrate Coating Processes
NR 468 - Emission Standards for Hazardous Air Pollutants for Miscellaneous Processes
NR 469 - Emission Standards for Hazardous Air Pollutants for Halogenated Solvent Cleaning Operations
NR 484 - Incorporation By Reference
NR 485 - Control of Emissions from Motor Vehicles, Internal Combustion Engines and Mobile Sources; Tampering Prohibition
NR 486 - Employee Commute Options Program
NR 487 - Clean Fuel Fleet Program
NR 488 - Refrigerant Recovery from Salvaged or Dismantled Refrigeration Equipment
NR 489 - Conformity of General Federal Actions to State Implementation Plans
NR 490 - Procedures for Noncontested Case Public Hearings
NR 492 - Department Review Times
NR 493 - Air Pollution Episode Levels and Episode Emission Control Action Programs
NR 494 - Enforcement and Penalties for Violation of Air Pollution Control Provisions
NR 499 - Training and Certification Requirements for Solid Waste Treatment Facility Operators