Description
Engineering and Technical Services

Includes
Includes: System Engineering, Technical Assistance and Other Services Used to Support the Program Office During the Acquisition Cycle

Excludes
Excludes: Language Translation and Sign Language Interpretation (PSC R608)

Possible NAICS Codes
541330 – Engineering Services
541990 – All Other Professional, Scientific, and Technical Services
541512 – Computer Systems Design Services
541715 – Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
541690 – Other Scientific and Technical Consulting Services
541620 – Environmental Consulting Services
541611 – Administrative Management and General Management Consulting Services
541519 – Other Computer Related Services
336611 – Ship Building and Repairing
541511 – Custom Computer Programming Services

Description
Well Drilling/Exploratory Services

Possible NAICS Codes
237110 – Water and Sewer Line and Related Structures Construction
238910 – Site Preparation Contractors
213115 – Support Activities for Nonmetallic Minerals (except Fuels) Mining
541690 – Other Scientific and Technical Consulting Services
541620 – Environmental Consulting Services
221310 – Water Supply and Irrigation Systems
541360 – Geophysical Surveying and Mapping Services
237990 – Other Heavy and Civil Engineering Construction
213112 – Support Activities for Oil and Gas Operations
213111 – Drilling Oil and Gas Wells

Description
Equipment and Materials Testing: Miscellaneous

Possible NAICS Codes
541380 – Testing Laboratories and Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
541330 – Engineering Services
541990 – All Other Professional, Scientific, and Technical Services
811210 – Electronic and Precision Equipment Repair and Maintenance
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
541611 – Administrative Management and General Management Consulting Services
334519 – Other Measuring and Controlling Device Manufacturing
334516 – Analytical Laboratory Instrument Manufacturing
541620 – Environmental Consulting Services

Description
Geological Studies

Possible NAICS Codes
541380 – Testing Laboratories and Services
541990 – All Other Professional, Scientific, and Technical Services
541360 – Geophysical Surveying and Mapping Services
541690 – Other Scientific and Technical Consulting Services
518210 – Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
541715 – Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
541620 – Environmental Consulting Services
611710 – Educational Support Services
611310 – Colleges, Universities, and Professional Schools
541511 – Custom Computer Programming Services

Description
Expert Witness

Possible NAICS Codes
621111 – Offices of Physicians (except Mental Health Specialists)
541199 – All Other Legal Services
541990 – All Other Professional, Scientific, and Technical Services
541611 – Administrative Management and General Management Consulting Services
541690 – Other Scientific and Technical Consulting Services
531320 – Offices of Real Estate Appraisers
621112 – Offices of Physicians, Mental Health Specialists
541330 – Engineering Services
541930 – Translation and Interpretation Services
541618 – Other Management Consulting Services

Description
Soil Studies

Possible NAICS Codes
541380 – Testing Laboratories and Services
541620 – Environmental Consulting Services
924120 – Administration of Conservation Programs
562910 – Remediation Services
541360 – Geophysical Surveying and Mapping Services
541990 – All Other Professional, Scientific, and Technical Services
541690 – Other Scientific and Technical Consulting Services
115112 – Soil Preparation, Planting, and Cultivating
541330 – Engineering Services
213112 – Support Activities for Oil and Gas Operations

Description
Inspection and Laboratory Services (except medical/dental): Nonmetallic Fabricated Materials

Includes
Includes: Commercial Testing and Laboratory Services

Excludes
Excludes: Medical and Dental Laboratory Services

Possible NAICS Codes
332321 – Metal Window and Door Manufacturing
313320 – Fabric Coating Mills
213115 – Support Activities for Nonmetallic Minerals (except Fuels) Mining

Description
Quality Control Services: Fuels, Lubricants, Oils, and Waxes

Possible NAICS Codes
541380 – Testing Laboratories and Services
562112 – Hazardous Waste Collection
336310 – Motor Vehicle Gasoline Engine and Engine Parts Manufacturing
493110 – General Warehousing and Storage
457210 – Fuel Dealers
334513 – Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
213112 – Support Activities for Oil and Gas Operations

Description
Other Special Studies and Analysis

Possible NAICS Codes
541512 – Computer Systems Design Services
541611 – Administrative Management and General Management Consulting Services
541990 – All Other Professional, Scientific, and Technical Services
541380 – Testing Laboratories and Services
541330 – Engineering Services
541720 – Research and Development in the Social Sciences and Humanities
541620 – Environmental Consulting Services
541690 – Other Scientific and Technical Consulting Services
541715 – Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
561611 – Investigation and Personal Background Check Services

Description
Scientific Data Studies

Possible NAICS Codes
541380 – Testing Laboratories and Services
541990 – All Other Professional, Scientific, and Technical Services
541690 – Other Scientific and Technical Consulting Services
541714 – Research and Development in Biotechnology (except Nanobiotechnology)
541715 – Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
541620 – Environmental Consulting Services
541611 – Administrative Management and General Management Consulting Services
518210 – Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
611310 – Colleges, Universities, and Professional Schools
813920 – Professional Organizations

Includes
Clays and other Earths; Mica; Asbestos; Crude Petroleum; Graphite.

Excludes
Gravel (FSC 5610); Sand (FSC 5610); Abrasives (FSC 5350); Refractory Clays (FSC 9350).

Notes
Only bulk material will be identified in this class. Minerals are naturally occurring substances with a characteristic chemical composition that can be expressed by a formula.

Possible NAICS Codes
212390 – Other Nonmetallic Mineral Mining and Quarrying
212321 – Construction Sand and Gravel Mining
212319 – Other Crushed and Broken Stone Mining and Quarrying
325998 – All Other Miscellaneous Chemical Product and Preparation Manufacturing
212312 – Crushed and Broken Limestone Mining and Quarrying
444140 – Hardware Retailers
423990 – Other Miscellaneous Durable Goods Merchant Wholesalers
327992 – Ground or Treated Mineral and Earth Manufacturing
325180 – Other Basic Inorganic Chemical Manufacturing
212311 – Dimension Stone Mining and Quarrying

Includes
Light Burner Fuels; Diesel Fuels, Kerosene; Military Specification Type Residuals; Special and Heavy Grade Turbine Vessel Propulsion Fuels; Federal Specification Heavy Burner Fuels; Bunker "C" Commercial Grade Fuel; Heavy Fuel and other Black (Boiler Type) Fuels; Illuminating Oils.

Possible NAICS Codes
324110 – Petroleum Refineries
457210 – Fuel Dealers
324191 – Petroleum Lubricating Oil and Grease Manufacturing
424720 – Petroleum and Petroleum Products Merchant Wholesalers (except Bulk Stations and Terminals)
324199 – All Other Petroleum and Coal Products Manufacturing
333132 – Oil and Gas Field Machinery and Equipment Manufacturing
213112 – Support Activities for Oil and Gas Operations
221112 – Fossil Fuel Electric Power Generation

Includes
Laboratory Glassware; Laboratory Funnels; Laboratory Furnaces; Glass Beads; Laboratory White Sand; Litmus Paper; Paper Filters; Insect Transfixion Pins; Laboratory Glass Wool; Laboratory Furniture, except Dental Laboratory.

Excludes
Instruments covered by other classes in group 66; Dental Laboratory Equipment; Laboratory Scales and Balances; In Vitro Diagnostic Substances and Reagents.

Possible NAICS Codes
423450 – Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers
339999 – All Other Miscellaneous Manufacturing
334516 – Analytical Laboratory Instrument Manufacturing

Includes
Bandages, Compresses, Dressings, Gauze, Pads, Sponges, and impregnated surgical dressing materials.

Possible NAICS Codes
339113 – Surgical Appliance and Supplies Manufacturing
322211 – Corrugated and Solid Fiber Box Manufacturing
339112 – Surgical and Medical Instrument Manufacturing
322291 – Sanitary Paper Product Manufacturing
325411 – Medicinal and Botanical Manufacturing
456199 – All Other Health and Personal Care Retailers
423450 – Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers