  | 005 Abrasives | Abrasives |
| | 010 Acoustical Tile, Insulating Materials | Acoustical Tile, Insulating Materials, and Supplies |
| | 020 Agricultural Equipment, Implements | Agricultural Equipment, Implements, and Accessories (see class 022 for parts) |
| | 022 Agricultural Equipment and Imp | Agricultural Equipment and Implement Parts |
| | 025 Air Compressors and Accessories | Air Compressors and Accessories |
| | 031 Air Conditioning, Heating | Air Conditioning, Heating, and Ventilating Equipment, Parts and Accessories (see class 740 also) |
| | 035 Aircraft and Airport Equipment | Aircraft and Airport Equipment, Parts, and Supplies |
| | 037 Amusement, Decorations, Entertainment | Amusement, Decorations, Entertainment, Toys, Etc. |
| | 045 Appliances and Equipment, Household Type | Appliances and Equipment, Household Type |
| | 050 Art Equipment and Supplies | Art Equipment and Supplies |
| | 052 Art Objects | Art Objects |
| | 055 Automotive Accessories for Automobiles | Automotive Accessories for Automobiles, Buses, Trailers, Trucks, Etc. |
| | 060 Automotive and Trailer Equipment | Automotive and Trailer Equipment and Parts |
| | 065 Automotive and Trailer Bodies | Automotive and Trailer Bodies, Body Accessories, and Parts |
| | 071 Automobiles, School Buses, SUV | Automobiles, School Buses, SUVs, and Vans (incl. diesel, gasoline, electric, hybrid, and all other fuel types) |
| | 072 Trucks | Trucks (incl. diesel, gasoline, electric, hybrid, and alternative fuel units) |
| | 073 Trailers | Trailers |
| | 075 Automotive Shop and Related Equipment | Automotive Shop and Related Equipment and Supplies |
| | 080 Badges, Awards, Emblems, Name | Badges, Awards, Emblems, Name Tags and Plates, Jewelry, Etc. |
| | 085 Bags, Bagging, Ties, and Erosion Sheeting | Bags, Bagging, Ties, and Erosion Sheeting, Etc. |
| | 100 Barrels, Drums, Kegs, and Containers | Barrels, Drums, Kegs, and Containers |
| | 110 Belts and Belting: Automotive | Belts and Belting: Automotive and Industrial |
| | 125 Bookbinding Supplies | Bookbinding Supplies |
| | 135 Bricks | Bricks |
| | 150 Builders Supplies | Builders Supplies |
| | 155 Buildings and Structures: Fabricated | Buildings and Structures: Fabricated and Prefabricated |
| | 165 Cafeteria and Kitchen Equipment | Cafeteria and Kitchen Equipment, Commercial |
| | 175 Rental or Lease Services | Rental or Lease Services of Appliances, Cafeteria, Film, Furniture, Hardware, Musical, Sewing and Window and Floor Coverings |
| | 192 Cleaning Compositions, Detergents | Cleaning Compositions, Detergents, Solvents, and Strippers Prepackaged |
| | 195 Clocks, Watches, Timepieces, Jewelry | Clocks, Watches, Timepieces, Jewelry and Precious Stones |
| | 200 Clothing: Athletic, Casual, Dress | Clothing: Athletic, Casual, Dress, Uniform, Weather and Work-Related |
| | 201 Clothing Accessories | Clothing Accessories (See Class 800 For Shoes and Boots) |
| | 204 Computer Hardware and Peripherals | Computer Hardware and Peripherals for Microcomputers |
| | 206 Computer Hardware and Peripherals | Computer Hardware and Peripherals for Mini Frame Computers |
| | 207 Computer Accessories and Supplies | Computer Accessories and Supplies |
| | 208 Computer Software for Microcomputers | Computer Software for Microcomputers (Preprogrammed) |
| | 209 Computer Software for Mini | Computer Software for Mini and Mainframe Computers (Preprogrammed) |
| | 210 Concrete and Metal Products | Concrete and Metal Products, Culverts, Pilings, Septic Tanks, Accessories and Supplies |
| | 220 Controlling, Indicating, Measuring | Controlling, Indicating, Measuring, Monitoring, and Recording Instruments and Supplies |
| | 225 Coolers, Drinking Water | Coolers, Drinking Water (Water Fountains) |
| | 240 Cutlery, Cookware, Dishes, Glassware | Cutlery, Cookware, Dishes, Glassware, Silverware, Utensils, and Supplies |
| | 260 Dental Equipment and Supplies | Dental Equipment and Supplies |
| | 265 Draperies, Curtains, and Upholstery | Draperies, Curtains, and Upholstery Material (Including Automobile Upholstery) |
| | 269 Drugs and Pharmaceuticals | Drugs and Pharmaceuticals |
| | 280 Electrical Cables and Wires | Electrical Cables and Wires (Not Electronic) |
| | 285 Electrical Equipment and Supplies | Electrical Equipment and Supplies (Except Cable and Wire) |
| | 287 Electronic Equipment, Components | Electronic Equipment, Components, Parts, and Accessories (See Class 730 for Testing or Analyzing Type) |
| | 290 Energy Collecting Equipment | Energy Collecting Equipment and Accessories: Solar and Wind |
| | 295 Elevators, Escalators, and Moving | Elevators, Escalators, and Moving Walks (Building Type) |
| | 305 Engineering and Architectural | Engineering and Architectural Equipment, Surveying Equipment, Drawing Instruments, and Supplies |
| | 310 Envelopes, Plain | Envelopes, Plain (See Classes 525, 615, 640, 655, 665, and 966 for other types) |
| | 312 Environmental Protective Equipment | Environmental Protective Equipment (Inside and Outside) |
| | 318 Fare Collection Equipment | Fare Collection Equipment and Supplies |
| | 320 Fasteners: Bolts, Nuts, Pins | Fasteners: Bolts, Nuts, Pins, Rivets, Screws, Etc. (Incl. Packaging, Strapping and Tying Equipment, and Supplies) |
| | 325 Feed, Bedding, Vitamins | Feed, Bedding, Vitamins, and Supplements for Animals (See Class 875 for Drugs and Pharmaceuticals for Animals) |
| | 330 Fencing | Fencing |
| | 335 Fertilizers and Soil Condition | Fertilizers and Soil Condition |
| | 340 Fire Protection Equipment | Fire Protection Equipment and Supplies |
| | 345 First Aid and Safety Equipment | First Aid and Safety Equipment and Supplies (Except Nuclear and Welding) |
| | 350 Flags, Flag Poles, Banners | Flags, Flag Poles, Banners, and Accessories |
| | 360 Floor Covering, Floor Covering | Floor Covering, Floor Covering Installation and Removal Equipment, and Supplies |
| | 365 Floor Maintenance Machines, Parts | Floor Maintenance Machines, Parts, and Accessories |
| | 375 Food: Bakery Products (Fresh) | Food: Bakery Products (Fresh) |
| | 380 Foods: Dairy Products (Fresh) | Foods: Dairy Products (Fresh) |
| | 385 Foods, Frozen | Foods, Frozen |
| | 390 Foods: Perishable | Foods: Perishable |
| | 393 Foods: Staple Grocery and Grocers | Foods: Staple Grocery and Grocers Miscellaneous Items |
| | 405 Fuel, Oil, Grease and Lubricants | Fuel, Oil, Grease and Lubricants |
| | 410 Furniture: Health Care, Hospital | Furniture: Health Care, Hospital and/or Doctors Office |
| | 420 Furniture: Cafeteria, Chapel | Furniture: Cafeteria, Chapel, Courtroom, Dormitory, Household, Library, Lounge, and School |
| | 425 Furniture: Office | Furniture: Office |
| | 430 Gases, Containers, Equipment | Gases, Containers, Equipment: Laboratory, Medical, and Welding |
| | 435 Germicides, Cleaners, and Related | Germicides, Cleaners, and Related Sanitation Products for Health Care Personnel |
| | 445 Hand Tools (Powered and Nonpowered) | Hand Tools (Powered and Nonpowered), Accessories and Supplies |
| | 450 Hardware and Related Items | Hardware and Related Items |
| | 460 Hose, Accessories and Supplies | Hose, Accessories and Supplies: Industrial, Commercial and Garden |
| | 465 Hospital and Surgical Equipment | Hospital and Surgical Equipment, Instruments and Supplies |
| | 475 Hospital, Surgical, and Medical | Hospital, Surgical, and Medical Related Accessories and Sundry Items |
| | 485 Janitorial Supplies, General | Janitorial Supplies, General Line |
| | 493 Laboratory Equipment and Accessories | Laboratory Equipment and Accessories |
| | 515 Lawn Maintenance Equipment | Lawn Maintenance Equipment and Accessories (See Class 020 for Agricultural Types) |
| | 525 Library and Archival Equipment | Library and Archival Equipment, Machines, and Supplies |
| | 530 Luggage, Brief Cases, Purses | Luggage, Brief Cases, Purses and Related Items |
| | 540 Lumber, Siding and Related | Lumber, Siding and Related Products |
| | 545 Machinery and Hardware, Industrial | Machinery and Hardware, Industrial |
| | 550 Markers, Plaques and Traffic | Markers, Plaques and Traffic Control Devices |
| | 556 Mass Transportation Transit | Mass Transportation Transit Bus |
| | 557 Mass Transportation Transit | Mass Transportation Transit Bus Accessories and Parts |
| | 560 Material Handling, Conveyors | Material Handling, Conveyors, Storage Equipment and Accessories |
| | 578 Miscellaneous Products | Miscellaneous Products (Not Otherwise Classified) |
| | 595 Nursery (Plants) Stock, Equipment | Nursery (Plants) Stock, Equipment and Supplies |
| | 600 Office Machines, Equipment | Office Machines, Equipment, and Accessories |
| | 605 Office Mechanical Aides, Small | Office Mechanical Aides, Small Machines and Apparatuses |
| | 615 Office Supplies, General | Office Supplies, General |
| | 620 Office Supplies: Erasers, Inks | Office Supplies: Erasers, Inks, Leads, Pens, Pencils, Etc. |
| | 630 Paint | Paint |
| | 635 Painting Equipment and Accessories | Painting Equipment and Accessories |
| | 640 Paper and Plastic Products | Paper and Plastic Products, Disposable |
| | 645 Paper (For Office and Print | Paper (For Office and Print Shop Use) |
| | 650 Park, Playground, Recreational | Park, Playground, Recreational Area and Swimming Pool Equipment and Supplies |
| | 652 Personal Hygiene | Personal Hygiene |
| | 655 Photographic Equipment, Film | Photographic Equipment, Film, and Supplies ( Not Graphic Arts, Microfilm and Xray) |
| | 658 Pipe, Tubing, and Accessories | Pipe, Tubing, and Accessories (Not Fittings) |
| | 659 Pipe and Tubing Fittings | Pipe, Tubing, and Accessories |
| | 670 Plumbing Equipment, Fixtures | Plumbing Equipment, Fixtures and Supplies |
| | 675 Poisons: Agricultural and Industrial | Poisons: Agricultural and Industrial |
| | 680 Police and Prison Equipment | Police and Prison Equipment and Supplies |
| | 690 Power Generation Equipment | Power Generation Equipment, Accessories, and Supplies |
| | 691 Power Transmission Equipment | Power Transmission Equipment (Electrical, Mechanical, Air and Hydraulic) |
| | 715 Publications, AudioVisual Materials | Publications, AudioVisual Materials, Books, Textbooks (Prepared Materials Only) |
| | 720 Pumping Equipment and Accessories | Pumping Equipment and Accessories |
| | 725 Radio Communication, Telephone | Radio Communication, Telephone, and Telecommunication, Accessories and Supplies |
| | 735 Rags, Shop Towels and Wiping | Rags, Shop Towels and Wiping Cloths |
| | 740 Refrigeration Equipment and Accessories | Refrigeration Equipment and Accessories |
| | 745 Road and Highway Building Materials | Road and Highway Building Materials (Asphaltic) |
| | 750 Road and Highway Building Materials | Road and Highway Building Materials (Not Asphaltic) |
| | 755 Road and Highway Asphalt | Road and Highway Asphalt and Concrete Handling and Processing Equipment |
| | 760 Road and Highway Equipment | Road and Highway Equipment: Earth Handling, Grading, Moving, Packing, Etc. |
| | 765 Road and Highway Equipment | Road and Highway Equipment (Except Equipment in Classes 755 and 760) |
| | 770 Roofing Materials and Supplies | Roofing Materials and Supplies |
| | 775 Salt (Sodium Chloride) | Salt (Sodium Chloride) (See Class 393 for Table Salt) |
| | 785 School Equipment and Supplies | School Equipment and Supplies |
| | 790 Seed, Sod, Soil and Inoculants | Seed, Sod, Soil and Inoculants |
| | 800 Shoes and Boots | Shoes and Boots |
| | 801 Signs, Sign Materials, Sign making | Signs, Sign Materials, Sign Making Equipment and Related Supplies |
| | 803 Sound Systems, Components | Sound Systems, Components and Accessories: Group Intercom, Music, Public Address, Etc |
| | 805 Sporting Goods, Athletic Equipment | Sporting Goods, Athletic Equipment and Athletic Facility Equipment |
| | 810 Spraying Equipment | Spraying Equipment (Except Household, Nursery Plant, and Paint) |
| | 815 Steam & Hot Water Fittings | Steam & Hot Water Fittings |
| | 832 Tape (Not Data Processing, Measuring | Tape (Not Data Processing, Measuring, Optical, Sewing, Sound, or Video) |
| | 838 Telecommunications and Cellular | Telecommunications and Cellular Equipment, Accessories, and Supplies |
| | 840 Television Equipment and Accessories | Television Equipment and Accessories |
| | 850 Textiles, Fibers, Household Linens | Textiles, Fibers, Household Linens and piece goods |
| | 855 Theatrical Equipment and Supplies | Theatrical Equipment and Supplies |
| | 863 Tires and Tubes (incl. Recapped/Retreaded Tires) | Tires and Tubes (incl. Recapped/Retreaded Tires) |
| | 865 Twine and String | Twine and String |
| | 870 Venetian Blinds, Awnings | Venetian Blinds, Awnings and Shades |
| | 875 Veterinary Equipment and Supplies | Veterinary Equipment and Supplies (See Class 325 for Vitamins and Supplements for Animals) |
| | 885 Water and Wastewater Treating | Water and Wastewater Treating Chemicals |
| | 890 Water Supply, Groundwater, Sewage Treatment | Water Supply, Groundwater, Sewage Treatment, and Related Equipment (not for air conditioning, steam boiler, or laboratory reagent water) |
| | 895 Welding Equipment and Supplies | Welding Equipment and Supplies |
| | 905 Aircraft and Airport Operation | Aircraft and Airport Operations Services |
| | 906 Landscape Architecture | Landscape Architecture |
| | 908 Bookbinding and Repairing Serv | Bookbinding and Repairing Services |
| | 909 Building Construction Services | Building Construction Services, New (incl. maintenance and repair services) |
| | 910 Building Maintenance, Installation | Building Maintenance, Installation, and Repair Services |
| | 912 Construction Services, General | Construction Services, General (incl. maintenance and repair services) |
| | 913 Construction Services, Heavy | Construction Services, Heavy (incl. maintenance and repair services) |
| | 914 Construction Services, Trade | Construction Services, Trade (new construction) |
| | 915 Communications and Media Related | Communications and Media Related Services |
| | 918 Consulting Services | Consulting Services |
| | 920 Data Processing, Computer | Data Processing, Computer, and Software Services |
| | 924 Educational/Training Services | Educational/Training Services |
| | 925 Engineering Services, Professional | Engineering Services, Professional |
| | 926 Environmental and Ecological | Environmental and Ecological Services |
| | 928 Equipment Maintenance and Repair | Equipment Maintenance and Repair for Automobiles, Trucks, Trailers, Transit Buses and other Vehicles |
| | 929 Equipment Maintenance and Repair | Equipment Maintenance and Repair for Agricultural, Construction, Heavy Industrial, Material Handling, and Road and Highway Equipment |
| | 931 Equipment Maintenance and Repair | Equipment Maintenance and Repair Service for Appliance, Athletic, Cafeteria, Furniture, Musical Instruments, and Sewing Equipment |
| | 934 Equipment Maintenance and Repair | Equipment Maintenance and Repair Services for Laundry, Lawn, Painting, Plumbing, and Spraying Equipment |
| | 936 Equipment Maintenance and Repair | Equipment Maintenance and Repair Services for General Equipment |
| | 939 Equipment Maintenance and Repair | Equipment Maintenance and Repair Services for Computers, Office, Photographic, and Radio/Television Equipment |
| | 946 Financial Services | Financial Services |
| | 948 Health Related Services | Health Related Services (See Class 952 for Human Services) |
| | 952 Human Services | Human Services |
| | 953 Insurance and Insurance Services | Insurance and Insurance Services (All types) |
| | 956 Library Services | Library Services (incl. Research and Subscription Services) |
| | 958 Management Services | Management Services |
| | 961 Miscellaneous Services, NO. 1 | Miscellaneous Services, NO. 1 (Not otherwise Classified) |
| | 962 Miscellaneous Services, NO. 2 | Miscellaneous Services, NO. 2 (Not otherwise Classified) |
| | 963 Non-Biddable Miscellaneous Items | Non-Biddable Miscellaneous Items |
| | 966 Printing and Typesetting Services | Printing and Typesetting Services |
| | 968 Public Works and Related Services | Public Works and Related Services |
| | 971 Real Property Rental or Lease | Real Property Rental or Lease |
| | 975 Rental or Lease Services | Rental or Lease Services of Equipment - Agricultural, Aircraft, Automotive, Heavy Equipment, and Marine Equipment |
| | 981 Rental or Lease of Equipment | Rental or Lease of Equipment - General Equipment |
| | 983 Rental or Lease Services | Rental or Lease Services of Clothing, Janitorial, Laundry, Lawn, Painting, Spraying, Laboratory, and Textile Equipment |
| | 985 Rental or Lease Services | Rental or Lease Services of Office, Photographic, Printing, Radio/Television/Telephone Equipment |
| | 988 Roadside, Grounds, Recreational | Roadside, Grounds, Recreational and Park Area Services |
| | 989 Sampling and Sample Preparation | Sampling and Sample Preparation Services (for Testing) |
| | 990 Security, Fire, Safety, and Emergency | Security, Fire, Safety, and Emergency Services |
| | 992 Testing and Calibration Services | Testing and Calibration Services |
