SIC Codes Subject to TPDES Multi-Sector General Permit (TXR050000)

SIC Code General Description of the Industrial Activity Sector under the General Permit
1011 Iron Ores G: Metal Mining (Ore Mining and
Dressing)
1021 Copper Ore Mining and Dressing G: Metal Mining (Ore Mining and
Dressing)
1031 Lead and Zinc Ores G: Metal Mining (Ore Mining and
Dressing)
1041, 1044 Gold and Silver Ores G: Metal Mining (Ore Mining and
Dressing)
1061 Ferroalloy Ores, except Vanadium G: Metal Mining (Ore Mining and
Dressing)
1081 Metal Mining Services G: Metal Mining (Ore Mining and
Dressing)
1094, 1099 Miscellaneous Metal Ores G: Metal Mining (Ore Mining and
Dressing)
1221–1241 Coal Mines and Coal-Mining-Related Facilities H: Coal Mines and Coal-Mining-Related
Facilities
1311 Crude Petroleum and Natural Gas (unless regulated by the I: Oil and Gas Extraction Facilities
Railroad Commission of Texas)
1321 Natural Gas Liquids (unless regulated by the Railroad I: Oil and Gas Extraction Facilities
Commission of Texas)
1381–1389 Oil and Gas Field Services (applies only to activities that I: Oil and Gas Extraction Facilities
do not occur in the field)
1411 Dimension Stone J: Mineral Mining and Dressing
Facilities
1422–1429 Crushed and Broken Stone, Including Rip Rap J: Mineral Mining and Dressing
Facilities
1442, 1446 Sand and Gravel Mining J: Mineral Mining and Dressing
Facilities
1455, 1459 Clay, Ceramic, and Refractory Materials J: Mineral Mining and Dressing
Facilities
1474–1479 Chemical and Fertilizer Mineral Mining J: Mineral Mining and Dressing
Facilities
1481 Nonmetallic Minerals, except Fuels J: Mineral Mining and Dressing
Facilities
1499 Miscellaneous Nonmetallic Minerals, except Fuels J: Mineral Mining and Dressing
Facilities
2011–2015 Meat Products U: Food and Kindred Products Facilities
2021–2026 Dairy Products U: Food and Kindred Products Facilities
2032–2038 Canned, Frozen, and Preserved Fruits, Vegetables, and U: Food and Kindred Products Facilities
Food Specialties
2041–2048 Grain Mill Products U: Food and Kindred Products Facilities
2051–2053 Bakery Products U: Food and Kindred Products Facilities
2061–2068 Sugar and Confectionery Products U: Food and Kindred Products Facilities

To look up MSGP sectors for two-letter Industrial Activity Codes, see the table on page 6.
(October 26, 2001, version) Page 1 of 6
 SIC Codes Subject to TPDES Multisector General Permit (TXR050000)
SIC Code General Description of the Industrial Activity Sector under the General Permit
2074–2079 Fats and Oils U: Food and Kindred Products Facilities
2082–2087 Beverages U: Food and Kindred Products Facilities
2091–2099 Miscellaneous Food Preparations and Kindred Products U: Food and Kindred Products Facilities
2111–2141 Tobacco Products U: Food and Kindred Products Facilities
2211–2299 Textile Mill Products V: Textile Mills and Apparel- and Other-
Fabric-Product-Manufacturing
Facilities
2311–2399 Apparel and Other Finished Products Made from Fabrics V: Textile Mills and Apparel- and Other-
and Similar Materials Fabric-Product-Manufacturing
Facilities
2411 Log Storage and Handling (Wet deck storage areas where A: Timber Products
no chemical additives are used in the spray water or
applied to the logs)
2421 General Sawmills and Planing Mills A: Timber Products
2426 Hardwood Dimension and Flooring Mills A: Timber Products
2429 Special Product Sawmills, Not Elsewhere Classified A: Timber Products
2431–2433 Millwork, Veneer, Plywood, and Structural Wood A: Timber Products
2434 Wood Kitchen Cabinets W: Furniture and Fixtures
2435–2439 Millwork, Veneer, Plywood, and Structural Wood A: Timber Products
2441–2449 Wood Containers A: Timber Products
2451, 2452 Wood Buildings and Mobile Homes A: Timber Products
2491 Wood Preserving A: Timber Products
2493 Reconstituted Wood Products A: Timber Products
2499 Wood Products Not Elsewhere Classified A: Timber Products
2511–2599 Furniture and Fixtures W: Furniture and Fixtures
2611 Pulp Mills B: Paper and Allied Products
2621 Paper Mills B: Paper and Allied Products
2631 Paperboard Mills B: Paper and Allied Products
2652–2657 Paperboard Containers and Boxes B: Paper and Allied Products
2671–2679 Converted Paper and Paperboard Products, Including B: Paper and Allied Products
Plastic Bags Produced from Plastics Film
2711–2796 Printing, Publishing, and Allied Industries X: Printing and Publishing
2812–2819 Basic Industrial Inorganic Chemicals C: Chemical and Allied Products
2821–2824 Plastic Materials, Synthetic Resins, Nonvulcanizable C: Chemical and Allied Products
Elastomers (Synthetic Rubber), Cellulose Plastics
Materials, and Other Manmade Fibers except Glass
2833–2836 Medicinal Chemicals and Botanical Products, C: Chemical and Allied Products
Pharmaceutical Preparations, In Vitro and In Vivo
Diagnostic Substances, Biological Products (except
Diagnostic Substances)

To look up MSGP sectors for two-letter Industrial Activity Codes, see the table on page 6.
(October 26, 2001, version) Page 2 of 6
 SIC Codes Subject to TPDES Multisector General Permit (TXR050000)
SIC Code General Description of the Industrial Activity Sector under the General Permit
2841–2844 Soaps and Detergents; Specialty Cleaning, Polishing, and C: Chemical and Allied Products
Sanitation Preparations; Surface Active Agents, Finishing
Agents, Sulfonated Oils, and Assistants; Perfumes,
Cosmetics, and Other Toilet Preparations
2851 Paints, Varnishes, Lacquers, Enamels, and Allied C: Chemical and Allied Products
Products
2861–2869 Industrial Organic Chemicals C: Chemical and Allied Products
2873–2879 Agricultural Chemicals (Including Fertilizers, Pesticides C: Chemical and Allied Products
and Fertilizers Solely from Leather Scraps and Leather
Dust)
2891–2899 Miscellaneous Chemical Products (Including Adhesives C: Chemical and Allied Products
and Sealants, Explosives, Printing Ink, and Carbon Black)
2911 Petroleum Refineries (unless required to obtain an C: Oil and Gas Extraction Facilities
individual permit)
2951, 2952 Asphalt Paving and Roofing Materials, Portable Asphalt D: Asphalt Paving and Roofing Materials
Plants and Lubricants
2992, 2999 Miscellaneous Products of Petroleum and Coal, Including D: Asphalt Paving and Roofing Materials
Lubricating Oils and Greases and Lubricants
3011 Tires and Inner Tubes Y: Rubber, Miscellaneous Plastic
Products, and Miscellaneous
Manufacturing Facilities
3021 Rubber and Plastics Footwear Y: Rubber, Miscellaneous Plastic
Products, and Miscellaneous
Manufacturing Facilities
3052, 3053 Gaskets, Packing, and Sealing Devices and Rubber and Y: Rubber, Miscellaneous Plastic
Plastics Hose and Belting Products, and Miscellaneous
Manufacturing Facilities
3061, 3069 Fabricated Rubber Products Not Elsewhere Classified Y: Rubber, Miscellaneous Plastic
Products, and Miscellaneous
Manufacturing Facilities
3081–3089 Miscellaneous Plastics Products Y: Rubber, Miscellaneous Plastic
Products, and Miscellaneous
Manufacturing Facilities
3111 Leather Tanning and Finishing Z: Leather Tanning and Finishing
3131–3199 Leather and Leather Products V: Textile Mills and Apparel- and Other-
Fabric-Product-Manufacturing
Facilities
3211 Flat Glass E: Glass Clay, Cement, Concrete, and
Gypsum Products
3221, 3229 Glass and Glassware, Pressed or Blown E: Glass Clay, Cement, Concrete, and
Gypsum Products
3231 Glass Products Made of Purchased Glass E: Glass Clay, Cement, Concrete, and
Gypsum Products
3241 Hydraulic Cement E: Glass Clay, Cement, Concrete, and
Gypsum Products

To look up MSGP sectors for two-letter Industrial Activity Codes, see the table on page 6.
(October 26, 2001, version) Page 3 of 6
 SIC Codes Subject to TPDES Multisector General Permit (TXR050000)
SIC Code General Description of the Industrial Activity Sector under the General Permit
3251–3259 Structural Clay Products E: Glass Clay, Cement, Concrete, and
Gypsum Products
3261 Vitreous China Plumbing Fixtures and China Earthenware E: Glass Clay, Cement, Concrete, and
Fittings and Bathroom Accessories Gypsum Products
3262–3269 Pottery and Related Products E: Glass Clay, Cement, Concrete, and
Gypsum Products
3271–3275 Concrete, Gypsum and Plaster Products E: Glass Clay, Cement, Concrete, and
Gypsum Products
3281 Cut Stone and Stone Products E: Glass Clay, Cement, Concrete, and
Gypsum Products
3291 Abrasive Products E: Glass Clay, Cement, Concrete, and
Gypsum Products
3292 Asbestos Products E: Glass Clay, Cement, Concrete, and
Gypsum Products
3295 Minerals and Earths, Ground, or Otherwise Treated E: Glass Clay, Cement, Concrete, and
Gypsum Products
3296 Mineral Wool E: Glass Clay, Cement, Concrete, and
Gypsum Products
3297 Non-Clay Refractories E: Glass Clay, Cement, Concrete, and
Gypsum Products
3299 Nonmetallic Mineral Products, Not Elsewhere Classified E: Glass Clay, Cement, Concrete, and
Gypsum Products
3312–3317 Steel Works, Blast Furnaces, and Rolling and Finishing F: Primary Metals
Mills
3321–3325 Iron and Steel Foundries F: Primary Metals
3331–3339 Primary Smelting and Refining of Nonferrous Metals F: Primary Metals
3341 Secondary Smelting and Refining of Nonferrous Metals F: Primary Metals
3351–3357 Rolling, Drawing, and Extruding of Nonferrous Metals F: Primary Metals
3363–3369 Nonferrous Foundries (Castings) F: Primary Metals
3398, 3399 Miscellaneous Primary Metal Products F: Primary Metals
3411–3499 Fabricated Metal Products, except Machinery and AA: Fabricated Metal Products Facilities
Transportation Equipment
3511–3570 Industrial and Commercial Machinery AB: Transportation Equipment, Industrial
or Commercial Machinery
Manufacturing Facilities
3571–3579 Computer and Office Equipment AC: Electronic, Electrical, Photographic,
and Optical Goods
3580–3599 Industrial and Commercial Machinery AB: Transportation Equipment, Industrial
or Commercial Machinery
Manufacturing Facilities
3612–3699 Electronic, Electrical Equipment and Components, except AC: Electronic, Electrical, Photographic,
Computer Equipment and Optical Goods

To look up MSGP sectors for two-letter Industrial Activity Codes, see the table on page 6.
(October 26, 2001, version) Page 4 of 6
 SIC Codes Subject to TPDES Multisector General Permit (TXR050000)
SIC Code General Description of the Industrial Activity Sector under the General Permit
3711–3730 Transportation Equipment AB: Transportation Equipment, Industrial
or Commercial Machinery
Manufacturing Facilities
3731, 3732 Ship- and Boat-Building or Repairing Yards R: Ship- and Boat-Building or Repairing
Yards
3733–3799 Transportation Equipment AB: Transportation Equipment, Industrial
or Commercial Machinery
Manufacturing Facilities
3812–3873 Measuring, Analyzing and Controlling Instrument; AC: Electronic, Electrical, Photographic,
Photographic and Optical Goods and Optical Goods
3911–3915 Jewelry, Silverware, and Plated Ware AA: Fabricated Metal Products Facilities
3931 Musical Instruments Y: Rubber, Miscellaneous Plastic
Products, and Miscellaneous
Manufacturing Facilities
3942–3949 Dolls, Toys, Games, and Sporting and Athletic Goods Y: Rubber, Miscellaneous Plastic
Products, and Miscellaneous
Manufacturing Facilities
3951 Pens, Pencils, and Other Artists' Materials Y: Rubber, Miscellaneous Plastic
Products, and Miscellaneous
Manufacturing Facilities
3952 China-Painting Enamels, India Ink, Drawing Ink, Platinum C: Chemical and Allied Products
Paints for Burnt Wood or Leather Work, Paints for China
Painting, Artists’ Paints, and Artists’ Watercolors
All Other Lead Pencils, Crayons, and Artists' Materials Y: Rubber, Miscellaneous Plastic
Products, and Miscellaneous
Manufacturing Facilities
3953–3955 Pens, Pencils, and Other Artists' Materials Y: Rubber, Miscellaneous Plastic
Products, and Miscellaneous
Manufacturing Facilities
3961 or 3965 Costume Jewelry, Costume Novelties, Buttons, and Y: Rubber, Miscellaneous Plastic
Miscellaneous Notions, except Precious Metal Products, and Miscellaneous
Manufacturing Facilities
3991–3999 Miscellaneous Manufacturing Industries Y: Rubber, Miscellaneous Plastic
Products, and Miscellaneous
Manufacturing Facilities
4011, 4013 Railroad Transportation—only if vehicle and equipment P: Land Transportation and
maintenance (including rehabilitation, mechanical repairs, Warehousing
painting, fueling, lubrication, and cleaning) occurs
4111–4173 Local and Highway Passenger Transportation—only if P: Land Transportation and
vehicle and equipment maintenance (including Warehousing
rehabilitation, mechanical repairs, painting, fueling,
lubrication, and cleaning) occurs
4212–4220 Motor Freight Transportation and Warehousing—only if P: Land Transportation and
vehicle and equipment maintenance (including Warehousing
rehabilitation, mechanical repairs, painting, fueling,
lubrication, and cleaning) occurs

To look up MSGP sectors for two-letter Industrial Activity Codes, see the table on page 6.
(October 26, 2001, version) Page 5 of 6
 SIC Codes Subject to TPDES Multisector General Permit (TXR050000)
SIC Code General Description of the Industrial Activity Sector under the General Permit
4221–4225 Motor Freight Transportation and Warehousing—only if P: Land Transportation and
vehicle and equipment maintenance (including Warehousing
rehabilitation, mechanical repairs, painting, fueling,
lubrication, and cleaning) occurs
4226–4231 Motor Freight Transportation and Warehousing—only if P: Land Transportation and
vehicle and equipment maintenance (including Warehousing
rehabilitation, mechanical repairs, painting, fueling,
lubrication, and cleaning) occurs
4311 United States Postal Service—only if vehicle and P: Land Transportation and
equipment maintenance (including rehabilitation, Warehousing
mechanical repairs, painting, fueling, lubrication, and
cleaning) occurs
4412–4499 Water Transportation—only if vehicle and equipment Q: Water Transportation
maintenance or cleaning occurs
4512–4581 Air Transportation Facilities—only if vehicle maintenance S: Air Transportation
(including rehabilitation, mechanical repairs, painting,
fueling, lubrication), equipment cleaning operations, or
deicing occurs
5015 Automobile Salvage Yards M: Automobile Salvage Yards
5093 Scrap Recycling Facilities (Scraps include metals, paper, N: Scrap and Waste Recycling Facilities
plastic, cardboard, glass, animal hides, used oil,
antifreeze, mineral spirits, industrial solvents and other
materials)
5171 Petroleum Bulk Stations and Terminals—only if vehicle and P: Land Transportation and
equipment maintenance (including rehabilitation, Warehousing
mechanical repairs, painting, fueling, lubrication, and
cleaning) occurs (Facilities that are regulated by the
Railroad Commission of Texas must apply to the EPA for
coverage)

Industrial Activity Codes Subject to TPDES Multisector General Permit TXR050000

Industrial General Description of the Industrial Activity Sector under the General Permit
Activity Code
HZ Limited to Hazardous Waste Storage K: Hazardous Waste Storage Facilities
LF Limited to Landfills, Land Application Sites, and Open L: Landfills and Land Application Sites
Dumps That Receive or Have Previously Received Industrial
Waste, Including Sites Subject to Regulation under Subtitle
D of the Resource Conservation and Recovery Act (RCRA).
SE Limited to Steam Electric Generating Facilities O: Steam Electric Generating Facilities

TW Treatment Works T: Treatment Works

(October 26, 2001, version) Page 6 of 6