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Emissions Inventory Reporting Documents
- Abrasive Blasting Calculator (26.04 KB) .xlsx
- Combustion Calculator (33.73 KB) .xlsx
- Concrete Batch Plant - Stationary (210.5 KB) .xls
- Concrete Batch Plant - Quick Report Form (CB-1 Form) (1.1 MB) .pdf
- Crushing Plant - Stationary (190 KB) .xls
- Dual Fuel Combustion Calculator (38.79 KB) .xlsx
- Feed Mill Calculator (37.66 KB) .xlsx
- Group 2 Grain Elevator Calculator (542-0246) (153.5 KB) .xls
- Haul Roads (332.66 KB) .xlsx
- Hot Mix Asphalt Plant - Stationary (66.24 KB) .xlsx
- How to Calculate Emissions From Release Points with Multiple Stack Tests (258.83 KB) .pdf
- Iowa Air Emissions Assistance Program's (IAEAP) Minor Source Emissions Inventory Tools & Tutorials
- Painting Calculator (47.92 KB) .xlsx
- Plasma/Laser Cutting Calculator (51.15 KB) .xlsx
- Portable Hot Mix Asphalt Calculator (.zip)
- Portable Concrete Batch Calculator (.zip)
- Portable Limestone Crushing Calculator (xlsm)
- Welding Calculator (35.68 KB) .xlsx
Instructions
- Minor Source Emission Inventory Instruction Booklet (2.29 MB) .pdf
- Title V Emission Inventory Instruction Booklet (2.24 MB) .pdf
Emissions Inventory Example Calculations
- Diesel Generator (<600 HP) (286.08 KB) .pdf
- Diesel Generator (>600 HP) (281.57 KB) .pdf
- Dual Fuel Generator (500.71 KB) .pdf
- Fuel Oil Boiler (280.65 KB) .pdf
- Natural Gas Boiler (280.38 KB) .pdf
- Paint Booth (302.96 KB) .pdf
- Welding (250.98 KB) .pdf
Classification Lists & Conversions
- Standard Industrial Classification (SIC)
- North American Industrial Classification System (NAICS)
- Updated Source Classification Codes - 8/27/2026 (357.34 KB) .xlsx
- Throughput Material Types (27.49 KB) .xlsx
- Throughput Units of Measure (13.09 KB) .xlsx
- Ethanol and Biodiesel Source Classification Code (SCC) List (11.62 KB) .xlsx
- Conversions and Abbreviations (179.69 KB) .pdf
Pollutants
- Definition of Volatile Organic Compounds (175.48 KB) .pdf
- List of Hazardous Air Pollutants (193.32 KB) .pdf
- List of Glycol Ethers
Emission Factors
- Emission Factors (CHIEF – EPA's ClearingHouse for Inventories & Emission Factors)
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- PM2.5 emission factors (110.13 KB) .xlsx
- Ammonia emission factors (87.2 KB) .xlsx
- Concrete Batching (23.5 KB) Archived .xls
- Batch Hot Mix Asphalt (27 KB) Archived .xls
- Drum Hot Mix Asphalt (29.5 KB) Archived .xls
- Limestone Crushing (23.5 KB) Archived .xls