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Regulations
The Air Quality Branch administers the requirements of the Clean Air Act, Iowa Administrative Code, and Linn County Code of Ordinances with regards to Air Quality. Local ordinances can be no less stringent than state law, which can in turn be no less stringent than federal law.
Iowa Administrative Code
- Iowa Administrative Code, Environmental Protection Commission [567], Title II Air Quality
- Environmental Protection Commission
- Iowa Approved State Implementation Plan
- Regulatory Plan for Iowa Department of Natural Resources (SFY2021) ( PDF )
Linn County Code of Ordinances
New Source Performance Standards
All NSPS Regulations: Air Technology Standards in Region 7.
Those NSPS most commonly applicable in Linn County are listed below for convenience.
NSPS Subpart Db - Standards of Performance for Industrial-Commercial-Institutional Steam Generating Units
- Federal Regulation: 40 CFR §60.40b - §60.49b
- EPA Industrial-Commercial-Institutional Steam Generating Units Summary Website
- Texas Commission on Environmental Quality: 40 CFR Part 60, Subpart Db
NSPS Subpart Dc - Standards of Performance for Small Industrial-Commercial-Institutional Steam Generating Units
- Federal Regulation: 40 CFR §60.40c - §60.48c
- EPA Industrial-Commercial-Institutional Steam Generating Units Summary Website
- Texas Commission on Environmental Quality: 40 CFR Part 60, Subpart Dc
NSPS Subpart DD - Standards of Performance for Grain Elevators
- Federal Regulation: 40 CFR §60.300 - §60.304
- EPA Grain Elevators Website
- Texas Commission on Environmental Quality: 40 CFR Part 60, Subpart DD
NSPS Subpart IIII - Standards of Performance for Stationary Compression Ignition Internal Combustion Engines
- Federal Regulation: 40 CFR §60.4200 - §60.4219
- EPA Stationary Internal Combustion Engine Website
- Texas Commission on Environmental Quality: 40 CFR Part 60, Subpart IIII
NSPS Subpart JJJJ - Standards of Performance for Stationary Spark Ignition Internal Combustion Engines
- Federal Regulation: 40 CFR §60.4230 - §4248
- EPA Stationary Internal Combustion Engine Website
- Texas Commission on Environmental Quality: 40 CFR Part 60, Subpart JJJJ
National Emission Standards for Hazardous Air Pollutants (NESHAP)
All NESHAP Regulations: Air Technology Standards in Region 7.
Those NESHAP most commonly applicable in Linn County are listed below for convenience.
NESHAP Subpart ZZZZ - Stationary Reciprocating Internal Combustion Engines
- Federal Regulation: 40 CFR §63.6580 - §63.6675
- EPA Stationary Internal Combustion Engine Website
- Texas Commission of Environmental Quality - 40 CFR Part 63, Subpart ZZZZ
NESHAP Subpart DDDDD - Industrial, Commercial, and Institutional Boilers and Process Heaters
- Federal Regulation: 40 CFR §63.7480 - §63.7575
- EPA Website for Industrial, Commercial, and Institutional Boilers and Process Heaters at Major Sources
NESHAP Subpart BBBBBB - Gasoline Distribution Bulk Terminals, Bulk Plants, and Pipeline Facilities
- Federal Regulation: 40 CFR §63.11080 - §63.11100
- EPA Gasoline Distribution MACT and GACT Website (NESHAP Subparts 6B & 6C)
NESHAP Subpart JJJJJJ - Industrial, Commercial, and Institutional Boilers Area Sources
- Federal Regulation: 40 CFR §63.11193 - §63.11237
- EPA Website for Industrial, Commercial, and Institutional Boilers at Area Sources
NESHAP Subpart HHHHHH - Area Sources: Paint Stripping and Miscellaneous Surface Coating Operations
- Federal Regulation: 40 CFR §63.11169 - §63.11180
- EPA Paint Stripping and Miscellaneous Surface Coating Operations Website
NESHAP Subpart WWWWWW - Area Source Standards for Plating and Polishing Operations
- Federal Regulation: 40 CFR §63.11504 - §63.11513
- EPA Plating and Polishing Website
NESHAP Subpart XXXXXX - Area Source Standards for Nine Metal Fabrication and Finishing Source Categories
- Federal Regulation: 40 CFR §63.11514 - §63.11523
- EPA Metal Fabrication and Finishing Source Categories Website
NESHAP Subpart DDDDDDD - Area Source Standards for Prepared Feeds Manufacturing
- Federal Regulation: 40 CFR §63.11619 - §63.11627
- EPA Prepared Feeds Manufacturing Website