Delegations of New Source Performance Standards (NSPS) and National Emission Standards for Hazardous Air Pollutants (NESHAP) in Idaho
The below tables list the part 60 NSPS, part 61 NESHAP and part 63 NESHAP delegated from EPA Region 10 to Idaho Department of Environmental Quality (IDEQ).
The effective date of delegation to IDEQ is July 1, 2024.
Table key:
- x - Delegated for all sources
- y - Delegated for title V sources only, whether or not a permit has yet been issued or an application submitted
- z - Delegated for permitted sources (title V and minor)
40 CFR Part 60 NSPS Delegations:
| Subpart | Subpart Name | Delegated to IDEQ |
|---|---|---|
| A | General Provisions | x |
| B | Adoption and Submittal of State Plans for Designated Facilities | |
| Ba | Adoption and Submittal of State Plans for Designated Facilities | |
| C | Emission Guidelines and Compliance Times | |
| Ca | [Reserved] | |
| Cb | Emission Guidelines and Compliance Times for Large Municipal Waste Combustors that are Constructed on or before September 20, 1994 | |
| Cc | Emission Guidelines and Compliance Times for Municipal Solid Waste Landfills | |
| Cd | Emission Guidelines and Compliance Times for Sulfuric Acid Production Units | |
| Ce | Emission Guidelines and Compliance Times for Hospital/Medical/Infections Waste Incinerators | |
| Cf | Emission Guidelines and Compliance Times for Municipal Solid Waste Landfills | |
| D | Fossil-Fuel-Fired Steam Generators | x |
| Da | Electric Utility Steam Generating Units | x |
| Db | Industrial-Commercial-Institutional Steam Generating Units | x |
| Dc | Small Industrial-Commercial-Institutional Steam Generating Units | x |
| E | Incinerators | x |
| Ea | Municipal Waste Combustors for which Construction is Commenced after December 20, 1989 and on or before September 20, 1994 | x |
| Eb | Large Municipal Waste Combustors for which Construction is Commenced after September 20, 1994 or for which Modification or Reconstruction is Commenced after June 19, 1996 | x |
| Ec | Hospital/Medical/Infectious Waste Incinerators | x |
| F | Portland Cement Plants | x |
| G | Nitric Acid Plants | x |
| Ga | Nitric Acid Plants for which Construction, Reconstruction, or Modification Commenced after October 14, 2011 | x |
| H | Sulfuric Acid Plants | x |
| I | Hot Mix Asphalt Facilities | x |
| J | Petroleum Refineries | x |
| Ja | Petroleum Refineries for which Construction, Reconstruction, or Modification Commenced after May 14, 2007 | x |
| K | Storage Vessels for Petroleum Liquids for which Construction, Reconstruction, or Modification Commenced after June 11, 1973, and prior to May 19, 1978 | x |
| Ka | Storage Vessels for Petroleum Liquids for which Construction, Reconstruction, or Modification Commenced after May 18, 1978, and prior to July 23, 1984 | x |
| Kb | Volatile Organic Liquid Storage Vessels (Including Petroleum Liquid Storage Vessels) For which Construction, Reconstruction, or Modification Commenced after July 23, 1984, and on or before October 4, 2023 | x |
| Kc | Volatile Organic Liquid Storage Vessels (Including Petroleum Liquid Storage Vessels) For which Construction, Reconstruction, or Modification Commenced after October 4, 2023 | |
| L | Secondary Lead Smelters for which Construction, Reconstruction or Modification Commenced after June 11, 1973 and on or before December 1, 2022 | x |
| La | Secondary Lead Smelters for which Construction, Reconstruction or Modification Commenced after December 1, 2022 | |
| M | Secondary Brass and Bronze Production Plants | x |
| N | Primary Emissions from Basic Oxygen Process Furnaces for which Construction is Commenced after June 11, 1973 | x |
| Na | Secondary Emissions from Basic Oxygen Process Steelmaking Facilities for which Construction is Commenced after January 20, 1983 | x |
| O | Sewage Treatment Plants | x |
| P | Primary Copper Smelters | x |
| Q | Primary Zinc Smelters | x |
| R | Primary Lead Smelters | x |
| S | Primary Aluminum Reduction Plants | x |
| T | Phosphate Fertilizer Industry: Wet-Process Phosphoric Acid Plants | x |
| U | Phosphate Fertilizer Industry: Superphosphoric Acid Plants | x |
| V | Phosphate Fertilizer Industry: Diammonium Phosphate Plants | x |
| W | Phosphate Fertilizer Industry: Triple Superphosphate Plants | x |
| X | Phosphate Fertilizer Industry: Granular Triple Superphosphate Storage Facilities | x |
| Y | Coal Preparation and Processing Plants | x |
| Z | Ferroalloy Production Facilities | x |
| AA | Steel Plants: Electric Arc Furnaces Constructed after October 21, 1974, and on or before August 17, 1983 | x |
| AAa | Steel Plants: Electric Arc Furnaces and Argon-Oxygen Decarbonization Vessels Constructed after August 17, 1983 and on or before May 16, 2022 | x |
| AAb | Steel Plants: Electric Arc Furnaces and Argon-Oxygen Decarbonization Vessels Constructed after May 16, 2022 | |
| BB | Kraft Pulp Mills | x |
| BBa | Kraft Pulp Mill Affected Sources for which Construction, Reconstruction, or Modification Commenced after May 23, 2013 | x |
| CC | Glass Manufacturing Plants | x |
| DD | Grain Elevators | x |
| EE | Surface Coating of Metal Furniture | x |
| FF | [Reserved] | |
| GG | Stationary Gas Turbines | x |
| HH | Lime Manufacturing Plants | x |
| KK | Lead-Acid Battery Manufacturing Plants for which Construction, Reconstruction, or Modification Commenced after January 14, 1980 and on or before February 23, 2022 | x |
| KKa | Lead-Acid Battery Manufacturing Plants for which Construction, Reconstruction, or Modification Commenced after February 23, 2022 | |
| LL | Metallic Mineral Processing Plants | x |
| MM | Automobile and Light Duty Truck Surface Coating Operations for which Construction, Reconstruction, or Modification Commenced after October 5, 1979 and on or before May 18, 2022 | x |
| MMa | Automobile and Light Duty Truck Surface Coating Operations for which Construction, Reconstruction, or Modification Commenced after May 18, 2022 | |
| NN | Phosphate Rock Plants | x |
| PP | Ammonium Sulfate Manufacture | x |
| Graphic Arts Industry: Publication Rotogravure Printing | x | |
| RR | Pressure Sensitive Tape and Label Surface Coating Operations | x |
| SS | Industrial Surface Coating: Large Appliances | x |
| TT | Metal Coil Surface Coating | x |
| UU | Asphalt Processing and Asphalt Roofing Manufacture | x |
| VV | Equipment Leaks of VOC in the Synthetic Organic Chemicals Manufacturing Industry for which Construction, Reconstruction, or Modification Commenced after January 5, 1981, and on or before November 7, 2006 | x |
| VVa | Equipment Leaks of VOC in the Synthetic Organic Chemicals Manufacturing Industry for which Construction, Reconstruction, or Modification Commenced after November 7, 2006 and on or before April 25, 2023 | x |
| VVb | Equipment Leaks of VOC in the Synthetic Organic Chemicals Manufacturing Industry for which Construction, Reconstruction, or Modification Commenced after April 25, 2023 | |
| WW | Beverage Can Surface Coating Industry | x |
| XX | Bulk Gasoline Terminals Constructed, Reconstructed, or Modified after December 17, 1980, and on or before June 10, 2022 | x |
| XXa | Bulk Gasoline Terminals Constructed, Reconstructed, or Modified after June 10, 2022 | |
| AAA | New Residential Wood Heaters | x |
| BBB | Rubber Tire Manufacturing Industry | x |
| CCC | [Reserved] | |
| DDD | Volatile Organic Compound (VOC) Emissions from the Polymer Manufacturing Industry | x |
| EEE | [Reserved] | |
| FFF | Flexible Vinyl and Urethane Coating and Printing | x |
| GGG | Equipment Leaks of VOC in Petroleum Refineries for which Construction, Reconstruction, or Modification Commenced after January 4, 1983, and on or before November 7, 2006 | x |
| GGGa | Equipment Leaks of VOC in Petroleum Refineries for which Construction, Reconstruction, or Modification Commenced after November 7, 2006 | x |
| HHH | Synthetic Fiber Production Facilities | x |
| III | Volatile Organic Compound (VOC) Emissions from the Synthetic Organic Chemical Manufacturing Industry (SOCMI) Air Oxidation Unit Processes after October 21, 1983, and on or before April 25, 2023 | x |
| IIIa | Volatile Organic Compound (VOC) Emissions from the Synthetic Organic Chemical Manufacturing Industry (SOCMI) Air Oxidation Unit Processes Constructed, Reconstructed, or Modified after April 25, 2023 | |
| JJJ | Petroleum Dry Cleaners | x |
| KKK | Equipment Leaks of VOC from Onshore Natural Gas Processing Plants for which Construction, Reconstruction, or Modification Commenced after January 20, 1984, and On or before August 23, 2011 | x |
| LLL | SO2 Emissions from Onshore Natural Gas Processing for which Construction, Reconstruction, or Modification Commenced after January 20, 1984, and on or before August 23, 2011 | x |
| MMM | [Reserved] | |
| NNN | Volatile Organic Compound (VOC) Emissions from Synthetic Organic Chemical Manufacturing Industry (SOCMI) Distillation Operations After December 30, 1983, and on or before April 25, 2023 | x |
| NNNa | Volatile Organic Compound (VOC) Emissions from Synthetic Organic Chemical Manufacturing Industry (SOCMI) Distillation Operations Constructed, Reconstructed, or Modified After April 25, 2023 | |
| OOO | Nonmetallic Mineral Processing Plants | x |
| PPP | Wool Fiberglass Insulation Manufacturing Plants | x |
| QQQ | VOC Emissions from Petroleum Refinery Wastewater Systems | x |
| RRR | Volatile Organic Compound Emissions from Synthetic Organic Chemical Manufacturing Industry (SOCMI) Reactor Processes after June 29, 1990, and on or before April 25, 2023 | x |
| RRRa | Volatile Organic Compound Emissions from Synthetic Organic Chemical Manufacturing Industry (SOCMI) Reactor Processes Constructed, Reconstructed, or Modified after April 25, 2023 | |
| SSS | Magnetic Tape Coating Facilities | x |
| TTT | Industrial Surface Coating: Surface Coating of Plastic Parts for Business Machines | x |
| TTTa | Industrial Surface Coating: Surface Coating of Plastic Parts for Business Machines for which Construction, Reconstruction, or Modification Commenced after June 21, 2022 | |
| UUU | Calciners and Dryers in Mineral Industries | x |
| VVV | Polymeric Coating of Supporting Substrates Facilities | x |
| WWW | Municipal Solid Waste Landfills | x |
| XXX | Standards of Performance for Municipal Solid Waste Landfills That Commenced Construction, Reconstruction, or Modification After July 17, 2014 | x |
| AAAA | Small Municipal Waste Combustion Units for which Construction is Commenced after August 30, 1999 or for which Modification or Reconstruction is Commenced after June 6, 2001 | x |
| BBBB | Emissions Guidelines and Compliance Times for Small Municipal Waste Combustion Units Constructed on or before August 30, 1999 | |
| CCCC | Commercial and Industrial Solid Waste Incineration Units | x |
| DDDD | Emission Guidelines and Compliance Times for Commercial and Industrial Solid Waste Incineration Units | |
| EEEE | Other Solid Waste Incineration Units for which Construction is Commenced after December 9, 2004, or for which Modification or Reconstruction is Commenced On or after June 16, 2006 | x |
| FFFF | Emission Guidelines and Compliance Times for Other Solid Waste Incineration Units that Commenced Construction on or before December 9, 2004 | |
| GGGG | [Reserved] | |
| HHHH | [Reserved] | |
| IIII | Stationary Compression Ignition Internal Combustion Engines | x |
| JJJJ | Stationary Spark Ignition Internal Combustion Engines | x |
| KKKK | Stationary Combustion Turbines | x |
| LLLL | New Sewage Sludge Incineration Units | x |
| MMMM | Emission Guidelines and Compliance Times for Existing Sewage Sludge Incineration Units | |
| OOOO | Crude Oil and Natural Gas Production, Transmission, and Distribution | x |
| OOOOa | Crude Oil and Natural Gas Facilities for which Construction, Modification, or Reconstruction Commenced after September 18, 2015 | x |
| OOOOb | Standards of Performance for Crude Oil and Natural Gas Facilities for Which Construction, Modification or Reconstruction Commenced After December 6, 2022 | |
| OOOOc | Emissions Guidelines for Greenhouse Gas Emissions from Existing Crude Oil and Natural Gas Facilities | |
| PPPP | [Reserved] | |
| QQQQ | New Residential Hydronic Heaters and Forced-Air Furnaces | x |
| TTTT | Greenhouse Gas Emissions for Electric Generating Units | x |
| TTTTa | Greenhouse Gas Emissions for Modified Coal-Fired and New and Reconstructed Combustion Turbines | |
| UUUUb | Emission Guidelines for Greenhouse Gas Emissions and Compliance Times for Electric Utility Generating Units |
40 CFR Part 61 NESHAP Delegations:
| Subpart | Subpart Name | Delegated to IDEQ |
|---|---|---|
| A | General Provisions | x |
| B | National Emission Standards for Radon Emissions from Underground Uranium Mines | |
| C | National Emission Standard for Beryllium | x |
| D | National Emission Standard for Beryllium Rocket Motor Firing | x |
| E | National Emission Standard for Mercury | x |
| F | National Emission Standard for Vinyl Chloride | x |
| G | [Reserved] | |
| H | National Emission Standards for Radionuclides other than Radon from Department of Energy Facilities | |
| I | National Emission Standards for Radionuclide Emissions from Federal Facilities other than Nuclear Regulatory Commission Licensees and Not Covered by Subpart H | |
| J | National Emission Standard for Equipment Leaks (Fugitive Emission Sources) of Benzene | x |
| K | National Emission Standards for Radionuclide Emissions from Elemental Phosphorus Plants | |
| L | National Emission Standard for Benzene Emissions from Coke By-Product Recovery Plants | x |
| M | National Emission Standard for Asbestos | y |
| N | National Emission Standard for Inorganic Arsenic Emissions from Glass Manufacturing Plants | x |
| O | National Emission Standard for Inorganic Arsenic Emissions from Primary Copper Smelters | x |
| P | National Emission Standard for Inorganic Arsenic Emissions from Arsenic Trioxide and Metallic Arsenic Production Facilities | x |
| Q | National Emission Standards for Radon Emissions from Department of Energy Facilities | |
| R | National Emission Standards for Radon Emissions from Phosphogypsum Stacks | |
| S | [Reserved] | |
| T | National Emission Standards for Radon Emissions from the Disposal of Uranium Mill Tailings | |
| U | [Reserved] | |
| V | National Emission Standard for Equipment Leaks (Fugitive Emission Sources) | x |
| W | National Emission Standards for Radon Emissions from Operating Mill Tailings | |
| X | [Reserved] | |
| Y | National Emission Standard for Benzene Emissions from Benzene Storage Vessels | x |
| Z | [Reserved] | |
| AA | [Reserved] | |
| BB | National Emission Standard for Benzene Emissions from Benzene Transfer Operations | x |
| CC | [Reserved] | |
| DD | [Reserved] | |
| EE | [Reserved] | |
| FF | National Emission Standard for Benzene Waste Operations | x |
40 CFR Part 63 NESHAP Delegations:
| Subpart | Subpart Name | Delegated to IDEQ |
|---|---|---|
| A | General Provisions | x |
| B | Requirements for Control Technology Determinations for Major Sources in Accordance with Clean Air Act Sections, Sections 112(g) and 112(j) | |
| C | List of Hazardous Air Pollutants, Petitions Process, Lesser Quantity Designations, Source Category List | |
| D | Regulations Governing Compliance Extensions for Early Reductions of Hazardous Air Pollutants | |
| E | Approval of State Programs and Delegation of Federal Authorities | |
| F | National Emission Standards for Synthetic Organic Chemical Manufacturing Industry | y |
| G | National Emission Standards for Synthetic Organic Chemical Manufacturing Industry for Process Vents, Storage Vessels, Transfer Operations, and Wastewater | y |
| H | National Emission Standards for Equipment Leaks | y |
| I | National Emission Standards for Certain Processes Subject to the Negotiated Regulation for Equipment Leaks | y |
| J | National Emission Standards for Polyvinyl Chloride and Copolymers Production | y |
| K | [Reserved] | |
| L | National Emission Standards for Coke Oven Batteries | y |
| M | National Perchloroethylene Air Emission Standards for Dry Cleaning Facilities | y |
| N | National Emission Standards for Hard and Decorative Chromium Electroplating and Chromium Anodizing Tanks | x |
| O | Ethylene Oxide Emissions Standards for Sterilization Facilities | y |
| P | [Reserved] | |
| Q | Industrial Process Cooling Towers NESHAP | y |
| R | National Emission Standards for Gasoline Distribution Facilities (Bulk Gasoline Terminals and Pipeline Breakout Stations) | y |
| S | Pulp and Paper Industry NESHAP | y |
| T | National Emission Standards for Halogenated Solvent Cleaning | y |
| U | Group I Polymers and Resins NESHAP | y |
| V | [Reserved] | |
| W | Epoxy Resins Production and Non-Nylon Polyamides Production NESHAP | y |
| X | Secondary Lead Smelting NESHAP | y |
| Y | National Emission Standards for Marine Tank Vessel Loading Operations | y |
| Z | [Reserved] | |
| AA | Phosphoric Acid Manufacturing Plants NESHAP | y |
| BB | Phosphate Fertilizers Production Plants NESHAP | y |
| CC | Petroleum Refineries NESHAP | y |
| DD | Off-Site Waste and Recovery Operations NESHAP | y |
| EE | National Emission Standards for Magnetic Tape Manufacturing Operations | y |
| FF | [Reserved] | |
| GG | National Emission Standards for Aerospace Manufacturing and Rework Facilities | y |
| HH | Oil and Natural Gas Production Facilities NESHAP | y |
| II | National Emission Standards for Shipbuilding and Ship Repair (Surface Coating) | y |
| JJ | National Emission Standards for Wood Furniture Manufacturing Operations | y |
| KK | National Emission Standards for Printing and Publishing Industry | y |
| LL | Primary Aluminum Reduction Plants NESHAP | y |
| MM | Chemical Recovery Combustion Sources at Kraft, Soda, Sulfite, and Stand-Alone Semichemical Pulp Mills NESHAP | y |
| NN | Wool Fiberglass Manufacturing at Area Sources NESHAP | y |
| OO | National Emission Standards for Tanks - Level 1 | y |
| PP | National Emission Standards for Containers | y |
| National Emission Standards for Surface Impoundments | y | |
| RR | National Emission Standards for Individual Drain Systems | y |
| SS | National Emission Standards for Closed Vent Systems, Control Devices, Recovery Devices and Routing to a Fuel Gas System or a Process | y |
| TT | National Emission Standards for Equipment Leaks - Control Level 1 | y |
| UU | National Emission Standards for Equipment Leaks - Control Level 2 Standards | y |
| VV | National Emission Standards for Oil-Water Separators and Organic-Water Separators | y |
| WW | National Emission Standards for Storage Vessels (Tanks) - Control Level 2 | y |
| XX | National Emission Standards for Ethylene Manufacturing Process Units: Heat Exchange Systems and Waste Operations | y |
| YY | Source Categories NESHAP: Generic Maximum Achievable Control Technology Standards | y |
| ZZ | [Reserved] | |
| AAA | [Reserved] | |
| BBB | [Reserved] | |
| CCC | Steel Pickling - HCl Process Facilities and Hydrochloric Acid Regeneration Plants NESHAP | y |
| DDD | Mineral Wool Production NESHAP | y |
| EEE | Hazardous Waste Combustors NESHAP | y |
| FFF | [Reserved] | |
| GGG | National Emission Standards for Pharmaceuticals Production | y |
| HHH | Natural Gas Transmission and Storage Facilities NESHAP | y |
| III | Flexible Polyurethane Foam Production NESHAP | y |
| JJJ | Group IV Polymers and Resins NESHAP | y |
| KKK | [Reserved] | |
| LLL | Portland Cement Manufacturing Industry NESHAP | y |
| MMM | Pesticide Active Ingredient Production NESHAP | y |
| NNN | Wool Fiberglass Manufacturing NESHAP | y |
| OOO | Manufacture of Amino/Phenolic Resins Emissions NESHAP | y |
| PPP | NESHAP for Polyether Polyols Production | y |
| QQQ | Primary Copper Smelting NESHAP | y |
| RRR | Secondary Aluminum Production NESHAP | y |
| SSS | [Reserved] | |
| TTT | Primary Lead Smelting NESHAP | y |
| UUU | Petroleum Refineries: Catalytic Cracking Units, Catalytic Reforming Units, and Sulfur Recovery Units NESHAP | y |
| VVV | National Emission Standards for Publicly Owned Treatment Works | y |
| WWW | [Reserved] | |
| XXX | Ferroalloys Production: Ferromanganese & Silicomanganese NESHAP | y |
| AAAA | Municipal Solid Waste Landfills NESHAP | x |
| CCCC | Manufacturing of Nutritional Yeast NESHAP | y |
| DDDD | Plywood and Composite Wood Products NESHAP | y |
| EEEE | Organic Liquids Distribution (Non-Gasoline) NESHAP | y |
| FFFF | Miscellaneous Organic Chemical Manufacturing NESHAP | y |
| GGGG | Solvent Extraction for Vegetable Oil Production NESHAP | y |
| HHHH | Wet‑Formed Fiberglass Mat Production NESHAP | y |
| IIII | Surface Coating of Automobiles and Light-Duty Trucks NESHAP | y |
| JJJJ | Paper and Other Web Coating NESHAP | y |
| KKKK | Surface Coating of Metal Cans NESHAP | y |
| MMMM | Surface Coating of Miscellaneous Metal Parts and Products NESHAP | y |
| NNNN | Surface Coating of Large Appliances NESHAP | y |
| OOOO | Printing, Coating, and Dyeing of Fabrics and Other Textiles NESHAP | y |
| PPPP | Surface Coating of Plastic Parts and Products NESHAP | y |
| QQQQ | Surface Coating of Wood Building Products NESHAP | y |
| RRRR | Surface Coating of Metal Furniture NESHAP | y |
| SSSS | Surface Coating of Metal Coil NESHAP | y |
| TTTT | Leather Finishing Operations NESHAP | y |
| UUUU | Cellulose Products Manufacturing NESHAP | y |
| VVVV | Boat Manufacturing NESHAP | y |
| WWWW | Reinforced Plastic Composites Production NESHAP | y |
| XXXX | Rubber Tire Manufacturing NESHAP | y |
| YYYY | Stationary Combustion Turbines NESHAP | y |
| ZZZZ | Stationary Reciprocating Internal Combustion Engines NESHAP | x |
| AAAAA | Lime Manufacturing Plants NESHAP | y |
| BBBBB | Semiconductor Manufacturing NESHAP | y |
| CCCCC | Coke Ovens: Pushing, Quenching, and Battery Stacks NESHAP | y |
| DDDDD | Major Sources: Industrial, Commercial, and Institutional Boilers and Process Heaters NESHAP | y |
| EEEEE | Iron and Steel Foundries NESHAP | y |
| FFFFF | Integrated Iron and Steel Manufacturing Facilities NESHAP | y |
| GGGGG | Site Remediation NESHAP | y |
| HHHHH | Miscellaneous Coating Manufacturing NESHAP | y |
| IIIII | Mercury Emissions from Mercury Cell Chlor-Alkali Plants NESHAP | y |
| JJJJJ | Brick and Structural Clay Products Manufacturing NESHAP | y |
| KKKKK | Clay Ceramics Manufacturing NESHAP | y |
| LLLLL | Asphalt Processing and Asphalt Roofing Manufacturing NESHAP | y |
| MMMMM | Flexible Polyurethane Foam Fabrication Operations NESHAP | y |
| NNNNN | Hydrochloric Acid Production NESHAP | y |
| OOOOO | [Reserved] | |
| PPPPP | Engine Test Cells/Stands NESHAP | y |
| QQQQQ | Friction Materials Manufacturing Facilities NESHAP | y |
| RRRRR | Taconite Iron Ore Processing NESHAP | y |
| SSSSS | Refractory Products Manufacturing NESHAP | y |
| TTTTT | Primary Magnesium Refining NESHAP | y |
| UUUUU | Coal- and Oil-Fired Electric Utility Steam Generating Units NESHAP | y |
| VVVVV | [Reserved] | |
| WWWWW | National Emission Standards for Hospital Ethylene Oxide Sterilizers | y |
| XXXXX | [Reserved] | |
| YYYYY | Area Sources: Electric Arc Furnace Steelmaking Facilities NESHAP | y |
| ZZZZZ | Iron and Steel Foundries Area Sources NESHAP | y |
| AAAAAA | [Reserved] | |
| BBBBBB | Source Category: Gasoline Distribution Bulk Terminals, Bulk Plants, and Pipeline Facilities NESHAP | x |
| CCCCCC | Source Category: Gasoline Dispensing Facilities NESHAP | y |
| DDDDDD | Polyvinyl Chloride and Copolymers Production Area Sources NESHAP | y |
| EEEEEE | Primary Copper Smelting Area Sources NESHAP | y |
| FFFFFF | Secondary Copper Smelting Area Sources NESHAP | y |
| GGGGGG | Primary Nonferrous Metals Area Sources - Zinc, Cadmium, and Beryllium NESHAP | y |
| HHHHHH | Paint Stripping and Miscellaneous Surface Coating Operations at Area Sources NESHAP | x |
| IIIIII | [Reserved] | |
| JJJJJJ | Industrial, Commercial, and Institutional Boilers Area Sources NESHAP | x |
| KKKKKK | [Reserved] | |
| LLLLLL | Acrylic and Modacrylic Fibers Production Area Sources NESHAP | y |
| MMMMMM | Carbon Black Production Area Sources NESHAP | y |
| NNNNNN | Chemical Manufacturing Area Sources: Chromium Compounds NESHAP | y |
| OOOOOO | Flexible Polyurethane Foam Production and Fabrication Area Sources NESHAP | y |
| PPPPPP | Lead Acid Battery Manufacturing Area Sources NESHAP | y |
| QQQQQQ | Wood Preserving Area Sources NESHAP | y |
| RRRRRR | Clay Ceramics Manufacturing Area Sources NESHAP | y |
| SSSSSS | Glass Manufacturing Area Sources NESHAP | y |
| TTTTTT | Secondary Nonferrous Metals Processing Area Sources NESHAP | y |
| UUUUUU | [Reserved] | |
| VVVVVV | Chemical Manufacturing Area Sources NESHAP | y |
| WWWWWW | Area Source Standards for Plating and Polishing Operations NESHAP | x |
| XXXXXX | Area Source Standards for Nine Metal Fabrication and Finishing Source Categories NESHAP | x |
| YYYYYY | Area Sources: Ferroalloys Production Facilities NESHAP | y |
| ZZZZZZ | Area Source Standards for Aluminum, Copper, and Other Nonferrous Foundries NESHAP | y |
| AAAAAAA | Area Sources: Asphalt Processing and Asphalt Roofing Manufacturing NESHAP | y |
| BBBBBBB | Area Sources: Chemical Preparations Industry NESHAP | y |
| CCCCCCC | Area Sources: Paints and Allied Products Manufacturing NESHAP | y |
| DDDDDDD | Area Sources: Prepared Feeds Manufacturing NESHAP | x |
| EEEEEEE | Gold Mine Ore Processing and Production Area Source Category NESHAP | y |
| FFFFFFF | [Reserved] | |
| GGGGGGG | [Reserved] | |
| HHHHHHH | Polyvinyl Chloride and Copolymers Production NESHAP | y |