Includes
Buxite; Ferrous Ores; Lead Ores; Precious Metal Ores; Radioactive Metal Ores; Zinc Ores.

Notes
Only bulk material will be identified in this class. Ores are a naturally occurring material from which economically valuable minerals can be obtained.

Possible NAICS Codes
322299 – All Other Converted Paper Product Manufacturing
331491 – Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding
212321 – Construction Sand and Gravel Mining
212114 – Surface Coal Mining
423320 – Brick, Stone, and Related Construction Material Merchant Wholesalers
339950 – Sign Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
325199 – All Other Basic Organic Chemical Manufacturing
212312 – Crushed and Broken Limestone Mining and Quarrying

Includes
Ration Heating Tablets; Cordwood; Charcoal; Briquettes; Coke.

Excludes
Peat.

Possible NAICS Codes
324110 – Petroleum Refineries
457210 – Fuel Dealers
324199 – All Other Petroleum and Coal Products Manufacturing
311812 – Commercial Bakeries
424720 – Petroleum and Petroleum Products Merchant Wholesalers (except Bulk Stations and Terminals)
221210 – Natural Gas Distribution
523910 – Miscellaneous Intermediation
321999 – All Other Miscellaneous Wood Product Manufacturing
325998 – All Other Miscellaneous Chemical Product and Preparation Manufacturing
325110 – Petrochemical Manufacturing

Includes
All Aviation Gasoline; JP-1, 3, 4, and 5 Jet Fuel; Combat Vehicle and Automotive Gasoline (all types and grades); Liquid Propellants, Bulk; Liquid Propellants, predetermined to specify quantity and quality, packaged in reusable containers.

Excludes
Solid Propellants; Liquid Propellants, encased in consumable containers, for insertion into missile propulsion systems as integral parts.

Notes
This class includes liquid propellants with more than 50% or higher petroleum content.

Possible NAICS Codes
324110 – Petroleum Refineries
457210 – Fuel Dealers
424720 – Petroleum and Petroleum Products Merchant Wholesalers (except Bulk Stations and Terminals)
324199 – All Other Petroleum and Coal Products Manufacturing
221210 – Natural Gas Distribution
324191 – Petroleum Lubricating Oil and Grease Manufacturing

Includes
Anesthesia Apparatus; Blood Transfusion Apparatus; Oxygen Therapy Apparatus; Respirators; Orthopedic Supplies; Arch Supports; Clinical Thermometers; Sutures; Hearing Aids; Veterinary Equipment, Endoscopes, Fiber Optic.

Excludes
Ophthalmic Instruments, Equipment, and Supplies; Non-Medical Endoscopes.

Possible NAICS Codes
423450 – Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers
339113 – Surgical Appliance and Supplies Manufacturing
339112 – Surgical and Medical Instrument Manufacturing
325411 – Medicinal and Botanical Manufacturing

Includes
Engine, Turbine, Wind, and Hand Driven Generator Sets and Auxiliary Aircraft Generators.

Excludes
Motor-Converters: Motor-Generator Sets; Engine Generators; Engine Accessory Generators.

Possible NAICS Codes
335312 – Motor and Generator Manufacturing
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
335311 – Power, Distribution, and Specialty Transformer Manufacturing
332991 – Ball and Roller Bearing Manufacturing
238210 – Electrical Contractors and Other Wiring Installation Contractors
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
333613 – Mechanical Power Transmission Equipment Manufacturing

Includes
Semitrailers; Semitrailer Dollies; Cargo Trailers; Passenger and House Trailers; Special Purpose Trailers, such as Ammunition.

Excludes
Fire Fighting Trailers; Specially designed trailers for use in and around airfields, hangars, and warehouses.

Notes
This class includes only complete trailers, and chassis therefor. Any end items, assemblies, parts, attachments, or accessories, other than complete chassis, for use in or on trailers are classified in classes other than this class. The combined chassis and body of a special purpose trailer, such as a machine shop, mobile laundry, or dental laboratory, is classified in this class. The complete mobile unit, consisting of chassis, body, and additional equipment, as in an equipped trailer-mounted machine shop, is excluded from this class.

Possible NAICS Codes
336212 – Truck Trailer Manufacturing
336214 – Travel Trailer and Camper Manufacturing
333924 – Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing
336211 – Motor Vehicle Body Manufacturing
336110 – Automobile and Light Duty Motor Vehicle Manufacturing
333120 – Construction Machinery Manufacturing
532120 – Truck, Utility Trailer, and RV (Recreational Vehicle) Rental and Leasing
336999 – All Other Transportation Equipment Manufacturing
441210 – Recreational Vehicle Dealers
321991 – Manufactured Home (Mobile Home) Manufacturing