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National Emission Standards for Hazardous Air Pollutants (NESHAP)

Cross Cutting Guidance
Reclassification of Major Sources as Area Sources Under Section 112 of the Clean Air Act
NESHAP (MACT) Standard Source Categories Code of Federal Regulations
Acrylic/Modacrylic Fiber (area sources) 40 CFR 63 Subpart LLLLLL (6L)
Aerospace 40 CFR 63 Subpart GG
Asbestos 40 CFR 61 Subpart M
Asphalt Processing and Asphalt Roofing Manufacturing 40 CFR 63 Subpart LLLLL
Asphalt Processing and Asphalt Roofing Manufacturing (area sources) 40 CFR 63 Subpart AAAAAAA (7A)
Auto and Light Duty Truck Surface Coating 40 CFR 63 Subpart IIII
Auto Body Refinishing (area sources) - see Paint Stripping and Miscellaneous Surface Coating Operations  
Benzene Transfer Operations 40 CFR 61 Subpart BB
Benzene Waste Operations 40 CFR 61 Subpart FF
Beryllium 40 CFR 61 Subpart C
Beryllium Rocket Motor Firing 40 CFR 61 Subpart D
Boat Manufacturing 40 CFR 63 Subpart VVVV
Boilers (see Industrial-Commercial-Institutional Boilers)  
Brick and Structural Clay Products Manufacturing  (see also Clay Ceramics) 40 CFR 63 Subpart JJJJJ
Carbon Black Production (area sources) 40 CFR 63 Subpart MMMMMM (6M)
Cellulose Products Manufacturing
  • Miscellaneous Viscose Processes
    • Cellulose Food Casing
    • Rayon
    • Cellulosic Sponge
    • Cellophane
  • Cellulose Ethers Production
    • Caroxymethyl Cellulose
    • Methyl Cellulose
    • Cellulose Ethers
40 CFR 63 Subpart UUUU
Chemical Manufacturing Industry (area sources): CMAS 40 CFR 63 Subpart VVVVVV (6V)
Chemical Preparations Industry (area sources) 40 CFR 63 Subpart BBBBBBB (7B)
Chromium Electroplating
  • Chromic Acid Anodizing
  • Decorative Chromium Electroplating
  • Hard Chromium Electroplating
40 CFR 63 Subpart N
Chromium Compounds (area sources) 40 CFR 63 Subpart NNNNNN (6N)
Clay Ceramics Manufacturing (see also Brick and Clay Products) 40 CFR 63 Subpart KKKKK
Clay Ceramics Manufacturing (area sources) 40 CFR 63 Subpart RRRRRR (6R)
Coke Ovens: Charging, Top Side, and Door Leaks 40 CFR 63 Subpart L
Coke Ovens: Pushing, Quenching, and Battery Stacks 40 CFR 63 Subpart CCCCC
Coke Oven By-product Recovery Plants 40 CFR 61 Subpart L
Combustion Sources at Kraft, Soda, and Sulfite Pulp & Paper Mills (Pulp and Paper MACT II) 
(see also Pulp and Paper noncombust MACT)
40 CFR 63 Subpart MM
Commercial Sterilizers (see Ethylene Oxide Emission Standards for Sterilization Facilities)  
Degreasing Organic Cleaners (see Halogenated Solvent Cleaners)  
Dry Cleaning
  • Commercial drycleaning dry-to-dry
  • Commercial drycleaning transfer machines
  • Industrial drycleaning dry-to-dry
  • Industrial drycleaning transfer machines
40 CFR 63 Subpart M
Electric Arc Furnace Steelmaking Facilities (area sources) 40 CFR 63 Subpart YYYYY
Engine Test Cells/Stands (see also Beryllium Rocket Motor Firing) 40 CFR 63 Subpart PPPPP
Ethylene Oxide Emission Standards for Sterilization Facilities (see also Hospital Ethylene Oxide Sterilizers) 40 CFR 63 Subpart O
Fabric Printing, Coating and Dyeing 40 CFR 63 Subpart OOOO
Ferroalloys Production (major sources) 40 CFR 63 Subpart XXX
Ferroalloys Production (area sources) 40 CFR 63 Subpart YYYYYY (6Y)
Flexible Polyurethane Foam Fabrication Operation 40 CFR 63 Subpart MMMMM
Flexible Polyurethane Foam Production and Fabrication (area sources) 40 CFR 63 Subpart OOOOOO (6-O)
Flexible Polyurethane Foam Production 40 CFR 63 Subpart III
Friction Products Manufacturing 40 CFR 63 Subpart QQQQQ
Gasoline Dispensing Facilities (area sources) 40 CFR 63 Subpart CCCCCC (6C)
Gasoline Distribution (Stage 1) 40 CFR 63 Subpart R
Gasoline Distribution Bulk Terminals, Bulk Plants, and Pipeline Facilities (area sources) 40 CFR 63 Subpart BBBBBB (6B)
Generic MACT I - Acetal Resins 40 CFR 63 Subpart YY
Generic MACT I - Hydrogen Floride 40 CFR 63 Subpart YY
Generic MACT I - Polycarbonates Production 40 CFR 63 Subpart YY
Generic MACT I - Acrylic/Modacrylic Fibers 40 CFR 63 Subpart YY
Generic MACT II - Spandex Production 40 CFR 63 Subpart YY
Generic MACT II - Carbon Black Production 40 CFR 63 Subpart YY
Generic MACT II - Ethylene Processes 40 CFR 63 Subpart YY
Glass Manufacturing (area sources) 40 CFR 63 Subpart SSSSSS (6S)
Glass Manufacturing - Inorganic Arsenic 40 CFR 61 Subpart N
Gold Mine Ore Processing and Production (area sources) 40 CFR 63 Subpart EEEEEEE (7E)
Halogenated Solvent Cleaning 40 CFR 63 Subpart T
Hazardous Organic NESHAP (Synthetic Organic Chemical Manufacturing Industry) 40 CFR 63 Subpart F, G, H, I
Hazardous Waste Combustors 40 CFR 63 Subpart EEE
Hospital Ethylene Oxide Sterilizers (area sources) (see also Ethylene Oxide Sterilizers) 40 CFR 63 Subpart WWWWW
Hydrochloric Acid Production 40 CFR 63 Subpart NNNNN
Industrial, Commercial and Institutional Boilers and Process Heaters (major sources) 40 CFR 63 Subpart DDDDD
Industrial, Commercial and Institutional Boilers (area sources)
(see also Boiler Compliance at Area Sources)
40 CFR 63 Subpart JJJJJJ (6J)
Industrial Process Cooling Towers 40 CFR 63 Subpart Q
Inorganic Arsenic Emissions from Primary Copper Smelters 40 CFR 61 Subpart O
Inorganic Arsenic from Arsenic trioxide and Metallic Arsenic Production 40 CFR 61 Subpart P
Integrated Iron and Steel 40 CFR 63 Subpart FFFFF
Iron and Steel Foundries (major sources) 40 CFR 63 Subpart EEEEE
Iron and Steel Foundries (area sources) 40 CFR 63 Subpart ZZZZZ
Large Appliances Surface Coating 40 CFR 63 Subpart NNNN
Lead Acid Battery Manufacturing (area sources) 40 CFR 63 Subpart PPPPPP (6P)
Leather Finishing Operations 40 CFR 63 Subpart TTTT
Lime Manufacturing 40 CFR 63 Subpart AAAAA
Magnetic Tape Surface Coating 40 CFR 63 Subpart EE
Manufacturing Nutritional Yeast (formerly Bakers Yeast) 40 CFR 63 Subpart CCCC
Marine Vessel Loading Operations 40 CFR 63 Subpart Y
Mercury Cell Chlor-Alkali Plants 40 CFR 63 Subpart IIIII
Mercury Production 40 CFR 61 Subpart E
Metal Can Surface Coating 40 CFR 63 Subpart KKKK
Metal Coil Surface Coating 40 CFR 63 Subpart SSSS
Metal Fabrication and Finishing Source Nine Categories (area sources) 40 CFR 63 Subpart XXXXXX (6X)
Metal Furniture Surface Coating 40 CFR 63 Subpart RRRR
Mineral Wool Production 40 CFR 63 Subpart DDD
Miscellaneous Coating Manufacturing 40 CFR 63 Subpart HHHHH
Miscellaneous Metal Parts and Products Surface Coating 40 CFR 63 Subpart MMMM
Misc. Organic Chemical Production and Processes (MON)
  • Alkyd Resins Production
  • Ammonium Sulfate Production
  • Benzyltrimethylammonium Chloride Prod.
  • Carbonyl Sulfide Production
  • Chelating Agents Production
  • Chlorinated Paraffins Production
  • Ethyllidene Norbomene Production
  • Explosives Production
  • Hydrazine Production
  • Maleic Anhydride Copolymers Production
  • Manufacture of Paints, Coatings, &
    Adhesives
  • OBPA/1, 3-diisocyanate Production
  • Photographic Chemicals Production
  • Phthalate Plasticizers Production
  • Polyester Resins Production
  • Polymerized Vinylidene Chloride Prod.
  • Polymethyl Methacrylate Resins Prod.
  • Polyvinyl Acetate Emulsions Prod.
  • Polyvinyl Alcohol Production
  • Polyvinyl Butyral Production
  • Quaternary Ammonium Comp. Prod.
  • Rubber Chemicals Production
  • Symmetrical Tetrachloropyridine Production
40 CFR 63 Subpart FFFF
Municipal Solid Waste Landfills 40 CFR 63 Subpart AAAA
Natural Gas Transmission and Storage 40 CFR 63 Subpart HHH
Nonferrous Foundries: Aluminum, Copper, and Other (area sources) 40 CFR 63 Subpart ZZZZZZ (6Z)
Off-Site Waste Recovery Operations 40 CFR 63 Subpart DD
Oil and Natural Gas Production includes Area Sources 40 CFR 63 Subpart HH
Oil-Water Separators and Organic-Water Separators 40 CFR 63 Subpart VV
Organic Liquids Distribution (non-gasoline) 40 CFR 63 Subpart EEEE
Paints and Allied Products Manufacturing (area sources) 40 CFR 63 Subpart CCCCCCC (7C)
Paint Stripping and Miscellaneous Surface Coating Operations (area sources)
(see also Collision Repair Campaign)
40 CFR 63 Subpart HHHHHH (6H)
Paper and Other Web Surface Coating 40 CFR 63 Subpart JJJJ
Pesticide Active Ingredient Production
  • 4-Chlror-2-Methyl Acid Production
  • 2,4 Salts & Esters Production
  • 4,6-dinitro-o-cresol Production
  • Butadiene Furfural Cotrimer
  • Captafol Production
  • Captan Production
  • Chloroneb Production
  • Chlorothalonil Production
  • Dacthal (tm) production
  • Sodium Pentachlorophenate Production
  • Tordon (tm) Acid Production
40 CFR 63 Subpart MMM
Petroleum Refineries 40 CFR 63 Subpart CC
Petroleum Refineries
  • Catalytic Cracking
  • Catalytic Reforming
  • Sulfur Plant Units
  • Associated Bypass Lines
40 CFR 63 Subpart UUU
Pharmaceuticals Production 40 CFR 63 Subpart GGG
Phosphoric Acid 40 CFR 63 Subpart AA
Phosphate Fertilizers 40 CFR 63 Subpart BB
Plastic Parts Surface Coating 40 CFR 63 Subpart PPPP
Plating and Polishing Operations (area sources) 40 CFR 63 Subpart WWWWWW (6W)
Plywood and Composite Wood Products (formerly Plywood and Particle Board Manufacturing) 40 CFR 63 Subpart DDDD
Polyether Polyols Production 40 CFR 63 Subpart PPP
Polymers & Resins I
  • Butyl Rubber
  • Epichlorohydrin Elastomers
  • Ethylene Propylene Rubber
  • Hypalon (TM) Production
  • Neoprene Production
  • Nitrile Butadiene Rubber
  • Polybutadiene Rubber
  • Polysulfide Rubber
  • Styrene-Butadiene Rubber & Latex
40 CFR 63 Subpart U
Polymers & Resins II
  • Epoxy Resins Production
  • Non-Nylon Polyamides Production
40 CFR 63 Subpart W
Polymers & Resins III
  • Amino Resins
  • Phenolic Resins
40 CFR 63 Subpart OOO
Polymers & Resins IV
  • Acrylonitrile-Butadiene-Styrene
  • Methyl Methacrylate-Acrylonitrile+
  • Methyl Methacrylate-Butadiene++
  • Polystrene
  • Styrene Acrylonitrile
  • Polyethylene Terephthalate
  • Nitrile Resins
40 CFR 63 Subpart JJJ
Polyvinyl Chloride and Copolymers Production 40 CFR 63 Subpart HHHHHHH (7H)
Polyvinyl Chloride and Copolymers Production (area sources) 40 CFR 63 Subpart DDDDDD (6D)
Portland Cement Manufacturing 40 CFR 63 Subpart LLL
Prepared Feeds Manufacturing (area sources) 40 CFR 63 Subpart DDDDDDD (7D)
Primary Aluminum 40 CFR 63 Subpart LL
Primary Copper Smelting 40 CFR 63 Subpart QQQ
Primary Copper Smelting (area sources) 40 CFR 63 Subpart EEEEEE (6E)
Primary Lead Processing 40 CFR 63 Subpart TTT
Primary Magnesium Refining 40 CFR 63 Subpart TTTTT
Primary Nonferrous Metals-Zinc, Cadmium, and Beryllium (area sources) 40 CFR 63 Subpart GGGGGG (6G)
Printing and Publishing Surface Coating 40 CFR 63 Subpart KK
Publicly Owned Treatment Works (POTW) 40 CFR 63 Subpart VVV
Pulp and Paper (non-combust) MACT (see also Combustion Sources at Kraft, Soda,
and Sulfite Pulp & Paper Mills -Pulp and Paper MACT II)
40 CFR 63 Subpart S
Reciprocating Internal Combustion Engines (RICE) includes area sources 40 CFR 63 Subpart ZZZZ
Refractory Products Manufacturing 40 CFR 63 Subpart SSSSS
Reinforced Plastic Composites Production 40 CFR 63 Subpart WWWW
Rubber Tire Manufacturing 40 CFR 63 Subpart XXXX
Secondary Aluminum 40 CFR 63 Subpart RRR
Secondary Copper Smelting (area sources) 40 CFR 63 Subpart FFFFFF (6F)
Secondary Lead Smelters 40 CFR 63 Subpart X
Secondary Nonferrous Metals Processing (Brass, Bronze, Magnesium and Zinc) (area sources) 40 CFR 63 Subpart TTTTTT (6T)
Semiconductor Manufacturing 40 CFR 63 Subpart BBBBB
Shipbuilding and Ship Repair Surface Coating 40 CFR 63 Subpart II
Site Remediation 40 CFR 63 Subpart GGGGG
Solvent Extraction for Vegetable Oil Production 40 CFR 63 Subpart GGGG
Stationary Combustion Turbines 40 CFR 63 Subpart YYYY
Steel Pickling - HCL Process 40 CFR 63 Subpart CCC
Taconite Iron Ore Processing 40 CFR 63 Subpart RRRRR
Utility NESHAP 40 CFR 63 Subpart UUUUU
Vinyl Chloride 40 CFR 61 Subpart F
Wet Formed Fiberglass Mat Production 40 CFR 63 Subpart HHHH
Wood Building Products Surface Coating (formerly Flat Wood Paneling Products) 40 CFR 63 Subpart QQQQ
Wood Furniture Surface Coating 40 CFR 63 Subpart JJ
Wood Preserving (area sources) 40 CFR 63 Subpart QQQQQQ (6Q)
Wool Fiberglass Manufacturing 40 CFR 63 Subpart NNN
Wool Fiberglass Manufacturing (area sources) 40 CFR 63 Subpart NN