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Toxics Release Inventory (TRI) Program

TRI-Covered Industry Sectors

NAICS Codes and Toxics Release Inventory (TRI) Reporting

The North American Industry Classification System (NAICS) is a framework by which economic units that have similar production processes are classified into the same industry by a numerical designation, the most detailed of which is six digits.

Cover of 2007 NAICS manual

The Emergency Planning and Community Right-to-Know Act originally required TRI reporting using four-digit Standard Industrial Classification (SIC) codes. However, the Office of Management and Budget replaced the SIC code system with the NAICS code system developed by the U.S. Census Bureau, and the TRI Program adopted this system in 2006 (71 FR 32464). NAICS codes are updated every five years, and facilities currently use OMB-revised 2017 six-digit NAICS codes on their TRI reporting forms.

NOTE: It is the full six-digit NAICS code (not the two-, three-, four-, or five-digit code) that determines a facility's coverage under the TRI Program.


How to Determine if a Facility's Six-Digit Primary NAICS Code is Covered by the TRI Program

For representatives of industrial facilities: 

1. Determine your facility's six-digit NAICS code. 

2. Find your facility's three-digit NAICS industry subsector code or four-digit NAICS industry group on the list below. The details given will indicate which six-digit NAICS codes are covered and whether there are any reporting exceptions or limitations for those covered codes.

3. Note that a variety of miscellaneous six-digit NAICS codes are included in "All Other Miscellaneous Manufacturing," which is listed right after subsector 339, Miscellaneous Manufacturing.


TRI-Covered Industries


212 Mining

  • 2121 Coal Mining
    ALL six-digit industry codes are covered.
  • 2122 Metal Mining
    ALL six-digit industry codes are covered EXCEPT for Industry Code 212210, Iron Ore Mining, and Industry Code 212291, Uranimum-Radium-Vanadium Ore Mining.
  • 2123 Nonmetallic Mineral Mining and Quarrying
    The following six-digit industry codes are covered:
    • Industry Code 212324, Kaolin and Clay Ball Mining, with the following caveat:
      Reporting is ONLY required for facilities operating without a mine or quarry and that are primarily engaged in beneficiating kaolin and clay (previously classified under SIC 3295, Minerals and Earths, Ground or Otherwise Treated)
    • Industry Code 212325, Clay and Ceramic and Refractory Minerals Mining, with the following caveat:
      Reporting is ONLY required for facilities operating without a mine or quarry and that are primarily engaged in beneficia­ting clay and ceramic and refractory minerals (previously classified under SIC 3295, Minerals and Earths, Ground or Otherwise Treated)
    • Industry Code 212393, Other Chemical and Fertilizer Mineral Mining, with the following caveat:
      Reporting is ONLY required for facilities operating without a mine or quarry and that are primarily engaged in beneficiating chemical or fertilizer mineral raw materials (previously classified under SIC 3295, Minerals and Earths, Ground or Otherwise Treated)
    • Industry Code 212399, All Other Nonmetallic Mineral Mining, with the following caveat:
      Reporting is ONLY required for facilities operating without a mine or quarry and that are primarily engaged in beneficiating nonmetallic minerals (previously classified under SIC 3295, Minerals and Earths, Ground or Otherwise Treated)

TRI-Covered Industries Menu


221 Utilities

  • 2211 Electric Utilities
    ALL six-digit industry codes are covered, with the following caveat for all covered codes:
    Reporting is ONLY required for facilities that combust coal and/or oil for the purpose of generating power for distribution in commerce.
  • 2213 Water, Sewage, and Other Systems
    ONLY Industry Code 221330, Steam and Air-Conditioning Supply, is covered, with the following caveats:
    Reporting is ONLY required for facilities engaged in providing combinations of electric, gas, and other services, not elsewhere classified (previously classified under SIC 4939, Combination Utility Services, NEC), and that combust coal and/or oil for the purpose of generating power for distribution in commerce.

TRI-Covered Industries Menu


31 - 33 Manufacturing

  • 311 Food
    ALL six digit codes are covered EXCEPT for Industry Code 311811, Retail Bakeries.
    Note the caveats for the following covered six-digit industry codes:
    • Industry Code 311119, Other Animal Food Manufacturing:
      Reporting is NOT required for facilities primarily engaged in Custom Grain Grinding for Animal Feed (previously classified under SIC 0723, Crop Preparation Services for Market, Except Cotton Ginning)
    • Industry Code 311340, Nonchocolate Confectionery Manufacturing:
      Reporting is NOT required for facilities primarily engaged in the retail sale of candy, nuts, popcorn and other confections not for immediate consumption made on the premises (previously classified under SIC 5441, Candy, Nut, and Confectionery Stores)
    • Industry Code 311352, Confectionery Manufacturing from Purchased Chocolate:
      Reporting is NOT required for facilities primarily engaged in the retail sale of candy, nuts, popcorn and other confections not for immediate consumption made on the premises (previously classified under SIC 5441, Candy, Nut, and Confectionery Stores)
    • Industry Code 311611, Animal (except Poultry) Slaughtering:
      Reporting is NOT required for facilities primarily engaged in Custom Slaughtering for individuals (previously classified under SIC 0751, Livestock Services, Except Veterinary)
    • Industry Code 311612, Meat Processed from Carcasses:
      Reporting is NOT required for facilities primarily engaged in the cutting up and resale of purchased fresh carcasses for the trade (including boxed beef), and in the wholesale distribution of fresh, cured, and processed (but not canned) meats and lard (previously classified under SIC 5147, Meats and Meat Products)
    • Industry Code 111998, All Other Miscellaneous Crop Farming Reporting is ONLY required for facilities primarily engaged in reducing maple sap to maple syrup (previously classified under SIC 2099, Food Preparations, NEC)
  • 312 Beverage & Tobacco Products
    ALL six-digit industry codes are covered, with caveats for the following covered six-digit industry codes:
    • Industry Code 312112, Bottled Water Manufacturing:
      Reporting is NOT required for facilities primarily engaged in bottling mineral or spirit water (previously classified under SIC 5149, Groceries and Related Products, NEC)
    • Industry Code 312230, Other Tobacco Product Manufacturing:
      Reporting is NOT required for facilities primarily engaged in providing Tobacco Sheeting Services (previously classified under SIC 7389, Business Services, NEC)
  • 313 Textile Mills
    ALL six-digit industry codes are covered, with caveats for the following covered six-digit industry codes:
    • Industry Code 313310, Textile and Fabric Finishing Mills:
      Reporting is NOT required for facilities primarily engaged in converting broadwoven piece goods and broadwoven textiles, (previously classified under SIC 5131, Piece Goods Notions, and Other Dry Goods), and facilities primarily engaged in sponging fabric for tailors and dressmakers (previously classified under SIC 7389, Business Services), and for facilities primarily engaged in converting narrow woven textiles, and narrow woven piece goods, (previously classified under SIC 5131, Piece Goods Notions, and Other Dry Goods)
  • 314 Textile Products
    ALL six-digit industry codes are covered, with caveats for the following covered six-digit industry codes:
    • Industry Code 314120, Curtain and Linen Mills:
      Reporting is NOT required for facilities primarily engaged in making custom drapery for retail sale (previously classified under SIC 5714, Drapery, Curtain, and Upholstery Stores), and facilities primarily engaged in making custom slipcovers for retail sale (previously classified under SIC 5714, Drapery, Curtain, and Upholstery Stores)
    • Industry Code 314999, All Other Miscellaneous Textile Product Mills:
      Reporting is NOT required for facilities primarily engaged in binding carpets and rugs for the trade, carpet cutting and binding, and embroidering on textile products (except apparel) for the trade (previously classified under SIC 7389, Business Services, NEC)
  • 315 Apparel
    ALL six-digit industry codes are covered, with caveats for the following covered six-digit industry codes:
    • Industry Code 315220, Men's and Boys' Cut and Sew Apparel Manufacturing:
      Reporting is NOT required for custom tailors primarily engaged in making and selling men's and boys' suits, cut and sewn from purchased fabric (previously classified under SIC 5699, Miscellaneous Apparel and Accessory Stores), and custom tailors primarily engaged in making and selling men's and boys' dress shirts, cut and sewn from purchased fabric (previously classified under SIC 5699, Miscellaneous Apparel and Accessory Stores)
    • Industry Code 315240, Women's, Girls' and Infants' Cut and Sew Apparel Manufacturing:
      Reporting is NOT required for custom tailors primarily engaged in making and selling bridal dresses or gowns, or women's, misses' and girls' dresses cut and sewn from purchased fabric (except apparel contractors custom dressmakers previously classified under SIC Code 5699, Miscellaneous Apparel and Accessory Stores)
  • 316 Leather and Allied Products
    ALL six-digit industry codes are covered.
  • 321 Wood Products
    ALL six-digit industry codes are covered.
  • 322 Paper
    ALL six-digit industry codes are covered.
  • 323 Printing & Publishing
    ALL six-digit industry codes are covered, with caveats for the following covered six-digit industry code:
    • Industry Code 323111, Commercial Printing (except Screen and Books):
      Reporting is NOT required for facilities primarily engaged in reproducing text, drawings, plans, maps, or other copy, by blueprinting, photocopying, mimeographing, or other methods of duplication other than printing or microfilming (i.e., instant printing) (previously classified under SIC 7334, Photocopying and Duplicating Services)
  • 324 Petroleum & Coal Products
    ALL six-digit industry codes are covered.
  • 325 Chemicals
    ALL six-digit industry codes are covered, with caveats for the following covered six-digit industry code:
    • Industry Code 325998, All Other Miscellaneous Chemical Product and Preparation Manufacturing:
      Reporting is NOT required for facilities primarily engaged in Aerosol can filling on a job order or contract basis (previously classified under SIC 7389, Business Services, NEC)
  • 326 Plastics & Rubber Products
    ALL six-digit industry codes are covered EXCEPT for Industry Code 326212, Tire Retreading.
  • 327 Nonmetallic Mineral Products
    ALL six-digit industry codes are covered.
  • 331 Primary Metals
    ALL six-digit industry codes are covered.
  • 332 Fabricated Metal Products
    ALL six-digit industry codes are covered.
  • 333 Machinery
    ALL six-digit industry codes are covered.
  • 334 Computer & Electronic Products
    ALL six-digit industry codes are covered EXCEPT for Industry Code 334614, Software and Other Prerecorded Compact Disc, Tape and Record Reproducing with the following caveat:
    • Reporting is NOT required for facilities primarily engaged in mass reproducing pre-recorded video cassettes, and mass reproducing video tape or disk (previously classified under SIC 7819, Services Allied to Motion Picture Production)
  • 335 Electrical Equipment
    ALL six digit industry codes are covered, with caveats for the following covered six-digit industry code:
    • Industry Code 335312, Motor and Generator Manufacturing:
      Reporting is NOT required for facilities primarily engaged in armature rewinding on a factory basis (previously classified under SIC 7694 (Armature Rewinding Shops)
  • 336 Transportation Equipment & Allied Services
    ALL six-digit industry codes are covered.
  • 337 Furniture
    ALL six-digit industry codes are covered, with caveats for the following covered six-digit industry codes:
    • Industry Code 337110, Wood Kitchen Cabinet and Countertop Manufacturing:
      Reporting is NOT required for facilities primarily engaged in the retail sale of household furniture and that manufacture custom wood kitchen cabinets and counter tops (previously classified under SIC 5712, Furniture Stores)
    • Industry Code 337121, Upholstered Household Furniture Manufacturing:
      Reporting is NOT required for facilities primarily engaged in the retail sale of household furniture and that manufacture custom made upholstered household furniture (previously classified under SIC 5712, Furniture Stores)
    • Industry Code 337122, Nonupholstered Wood Household Furniture Manufacturing:
      Reporting is NOT required for facilities primarily engaged in the retail sale of household furniture and that manufacture nonupholstered, household type, custom wood furniture (previously classified under SIC 5712, Furniture Stores)
  • 339 Miscellaneous Manufacturing
    ALL six-digit industry codes are covered EXCEPT for Industry Code 339116, Dental Laboratories.
    Note the caveats for the following covered six-digit industry codes:
    • Industry Code 339113, Surgical Appliance and Supplies Manufacturing:
      Reporting is NOT required for facilities primarily engaged in manufacturing orthopedic devices to prescription in a retail environment (previously classified under SIC 5999 Miscellaneous retail stores, NEC)
    • Industry Code 339115, Ophthalmic Goods Manufacturing:
      Reporting is NOT required for lens grinding facilities that are primarily engaged in the retail sale of eyeglasses and contact lenses to prescription for individuals (previously classified under SIC 5995, Optical Goods)

TRI-Covered Industries Menu


All Other Miscellaneous Manufacturing (includes 1119, 1133, 2111, 4883, 5417, 8114)

The following six-digit industry codes are covered:

  • Industry Code 111998, All Other Miscellaneous Crop Farming, with the following caveat:
    Reporting is ONLY required for facilities primarily engaged in reducing maple sap to maple syrup (previously classified under SIC 2099, Food Preparations, NEC)
  • Industry Code 113310, Logging
  • Industry Code 211130, Natural Gas Extraction, with the following caveat:
    Reporting is ONLY required for facilities that recover sulfur from natural gas (previously classified under SIC 2819, Industrial Inorganic Chemicals, NEC)
  • Industry Code 488390, Other Support Activities for Water Transportation, with the following caveat:
    Reporting is ONLY required for facilities that are primarily engaged in providing routine repair and maintenance of ships and boats from floating drydocks (previously classified under SIC 3731, Shipbuilding and Repairing)
  • Industry Code 541713, Research and Development in Nanotechnology, with the following caveat:
    Reporting is ONLY required for facilities that are primarily engaged in guided missile and space vehicle engine research and development (previously classified under SIC 3764, Guided Missile and Space Vehicle Propulsion Units and Propulsion Unit Parts), and in guided missile and space vehicle parts (except engines) research and development (previously classified under SIC 3769, Guided Missile and Space Vehicle Parts and Auxiliary Equipment, NEC)
  • Industry Code 541715, Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology), with the following caveat:
    Reporting is ONLY required for facilities that are primarily engaged in guided missile and space vehicle engine research and development (previously classified under SIC 3764, Guided Missile and Space Vehicle Propulsion Units and Propulsion Unit Parts), and in guided missile and space vehicle parts (except engines) research and development (previously classified under SIC 3769, Guided Missile and Space Vehicle Parts and Auxiliary Equipment, NEC)
  • Industry Code 811490, Other Personal and Household Goods Repair and Maintenance, with the following caveat:
    Reporting is ONLY required for facilities that are primarily engaged in repairing and servicing pleasure and sail boats without retailing new boats (previously classified under SIC 3732, Boat Building and Repairing)

TRI-Covered Industries Menu


424 Merchant Wholesalers, Non-durable Goods

  • 4246 Chemical and Allied Products Merchant Wholesalers
    ONLY Industry Code 424690, Other Chemical and Allied Products Wholesalers, is covered.
  • 4247 Petroleum and Petroleum Products Merchant Wholesalers
    ONLY Industry Code 424710, Petroleum Bulk Stations and Terminals, is covered.

425 Wholesale Electronic Markets and Agents Brokers

ALL six-digit industry codes are covered, with caveats for the following covered six-digit industry codes:

  • Industry Code 425110, Business to Business Electronic Markets:
    Reporting is ONLY required for facilities previously classified in SIC 5169, Chemicals and Allied Products, NEC.
  • Industry Code 425120, Wholesale Trade Agents and Brokers:
    Reporting is ONLY required for facilities previously classified in SIC 5169, Chemicals and Allied Products, NEC.

TRI-Covered Industries Menu


511, 512, 519 Publishing

ONLY the following six-digit industry codes are covered:

  • Industry Code 511110, Newspaper Publishers
  • Industry Code 511120, Periodical Publishers
  • Industry Code 511130, Book Publishers
  • Industry Code 511140, Directory and Mailing List Publishers, with the following caveat:
    • Reporting is NOT required for facilities that are primarily engaged in furnishing services for direct mail advertising including address list compilers, address list publishers, address list publishers and printing combined, address list publishing , business directory publishers, catalog of collections publishers, catalog of collections publishers and printing combined, mailing list compilers, directory compilers, and mailing list compiling services (previously classified under SIC 7331, Direct Mail Advertising Services)
  • Industry Code 511191, Greeting Card Publishers
  • Industry Code 511199, All Other Publishers
  • Industry Code 512230, Music Publishers, with the following caveat:
    • Reporting is NOT required for facilities primarily engaged in music copyright authorizing use, music copyright buying and licensing, and music publishers working on their own account (previously classified under SIC 8999, Services, NEC)
  • Industry Code 512250, Record Production and Distribution
    • Record Production and Distribution, with the following caveat:
      Reporting is ONLY required for facilities previously classified under SIC 3652, Phonograph Records and Prerecorded Audio Tapes and Disks
  • Industry Code 519130, Internet Publishing and Broadcasting and Web Search Portals, with the following caveat:
    • Reporting is ONLY required for facilities primarily engaged in Internet newspaper publishing (previously classified under SIC 2711, Newspapers: Publishing, or Publishing and Printing), Internet periodical publishing (previously classified under SIC 2721, Periodicals: Publishing, or Publishing and Printing), Internet book publishing (previously classified under SIC 2731, Books: Publishing, or Publishing and Printing), Miscellaneous Internet publishing (previously classified under SIC 2741, Miscellaneous Publishing), Internet greeting card publishers (previously classified under SIC 2771, Greeting Cards); Reporting is NOT required for facilities primarily engaged in Web search portals.

TRI-Covered Industries Menu


562 Hazardous Waste

  • 5621 Waste Collection
    ONLY Industry Code 562112, Hazardous Waste Collection, is covered, with the following caveat:
    Reporting is ONLY required for facilities primarily engaged in solvent recovery services on a contract or fee basis (previously classified under SIC 7389, Business Services, NEC)
  • 5622 Waste Treatment and Disposal
    ALL six-digit industry codes are covered, with caveats for the following covered six-digit industry codes:
    • Industry Code 562211, Hazardous Waste Treatment and Disposal:
      Reporting is ONLY required for facilities regulated under the Resource Conservation and Recovery Act, subtitle C, 42 U.S.C. 6921 et seq.
    • Industry Code 562212, Solid Waste Landfill:
      Reporting is ONLY required for facilities regulated under the Resource Conservation and Recovery Act, subtitle C, 42 U.S.C. 6921 et seq.
    • Industry Code 562213, Solid Waste Combustors and Incinerators:
      Reporting is ONLY required for facilities regulated under the Resource Conservation and Recovery Act, subtitle C, 42 U.S.C. 6921 et seq.
    • Industry Code 562219, Other Nonhazardous Waste Treatment and Disposal:
      Reporting is ONLY required for facilities regulated under the Resource Conservation and Recovery Act, subtitle C, 42 U.S.C. 6921 et seq.
  • 5629 Remediation and Other Waste Management Services
    ONLY Industry Code 562920, Materials Recovery Facilities, is covered, with the following caveat:
    Reporting is ONLY required for facilities regulated under the Resource Conservation and Recovery Act, subtitle C, 42 U.S.C. 6921 et seq.

TRI-Covered Industries Menu


Federal Facilities

In 1993, President Clinton signed an Executive Order (EO 12856) that required federal facilities to comply with Section 313 of EPCRA. This order established toxic chemical release reporting by all federal facilities that meet TRI threshold reporting criteria regardless of the facility's NAICS code, including, but not limited to, the NAICS codes listed above. Three separate EOs reinforced this requirement: EO 13148 (2000), EO 13423 (2007) and EO 13693 (2015).