Skip to main content

An official website of the United States government

Here’s how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

GSA Logo U.S. General Services Administration
    • Explore buy through us
    • Category management
    • Government property for sale or lease
      Toggle submenu
      • Personal property (tangible goods)
      • Real property (real estate and buildings) for public use
      • Real property sales
      • Vehicle sales
    • Products and services
      Toggle submenu
      • Human capital
      • Industrial products and services
      • Office management
      • Professional services
      • Security and protection
      • Transportation and logistics services
    • Purchasing programs
      Toggle submenu
      • Assisted acquisition
      • Commercial platforms
      • Emergency acquisition basic ordering agreements
      • Federal strategic sourcing initiative
      • Fleet management
      • HCaTS and HCaTS SB
      • OASIS and OASIS SB
      • Requisition programs
      • State and local programs
    • Shared services
      Toggle submenu
      • Payroll services
      • Support services for CABs

    Featured Topics

    • Multiple Award Schedule Governmentwide contracts for products and services at volume discount pricing.
    • Auctions Federal assets available via auction to the general public.
    • Explore sell to government
    • Step 1: Learn about government contracting
      Toggle submenu
      • Ways you can sell to government
      • How to access contract opportunities
      • Conduct market research
    • Step 2: Compete for a contract
      Toggle submenu
      • Register your business
      • Certify as a small business
      • Become a schedule holder
      • Market your business
      • Research active solicitations
      • Respond to a solicitation
      • What to expect during the award process
    • Step 3: Manage your contract
      Toggle submenu
      • Comply with contractual requirements
      • Handle contract modifications
      • Monitor past performance evaluations

    Featured Topics

    • Contract opportunities on SAM.gov Search current federal contract opportunities and procurement notices.
    • Forecast of contracting opportunities Anticipated contracts offered by GSA.
    • Vendor support center Research the federal market, report sales, and upload contract information.
    • Explore real estate
    • Design and construction
      Toggle submenu
      • 3D-4D building information modeling
      • Computer-aided design standards
      • Engineering
      • Project management information system
      • Prospectus thresholds
    • Facilities management
      Toggle submenu
      • Security
      • Tenant services
      • Water quality management
    • Our properties
      Toggle submenu
      • Owned and leased properties
      • Regional buildings
      • Renting property
    • Real estate services
      Toggle submenu
      • Leasing
      • Real property disposal
      • Reimbursable services (RWA)
      • For businesses seeking opportunities
      • For workers in federal buildings
      • Voice of the customer
    • Workplace optimization
      Toggle submenu
      • Commercial coworking
      • Federal coworking

    Featured Topics - Real Estate

    • Historic preservation tools and resources Procedures for maintaining and repairing historic buildings.
    • Real property disposal Dispose or acquire excess federal real property including buildings or land.
    • Explore policy and regulations
    • Acquisition management policy
    • Aviation management policy
    • Information technology policy
    • Real property management policy
    • Relocation management policy
    • Travel management policy
    • Vehicle management policy
    • Regulations
      Toggle submenu
      • Federal acquisition regulations
      • Federal management regulations
      • Federal travel regulations

    Featured Topics

    • Forms Search for a government form.
    • Per diem FAQs Frequently asked questions about per diem rates and related topics.
    • Explore small business
    • Small business goals
    • Register your business
      Toggle submenu
      • Explore business models
      • Research the federal market
      • Subcontracting and other partnerships
    • Forecast of contracting opportunities
    • Small business resources
      Toggle submenu
      • Small business contacts
      • Small business events
      • Videos

    Featured Topics

    • Forecast tool Information on planned federal contracting opportunities.
    • Socio economic categories Check your eligibility for small-business set-asides.
    • Training resources Suggested training for doing business with us.
    • Explore travel
    • Plan a trip
      Toggle submenu
      • Per diem rates
      • Transportation (airfare rates, POV rates, etc.)
      • Lodging
      • Travel charge card
    • Travel and lodging services
      Toggle submenu
      • E-gov travel service (ETS)
      • Rideshare
      • Travel category schedule
    • Federal travel regulation

    Featured Topics

    • Per diem rates look-up Allowances for lodging, meal and incidental costs while on official government travel.
    • Mileage reimbursement rates Reimbursement rates for the use of your own vehicle while on official government travel.
    • Explore technology
    • Build websites and digital services
    • Purchasing programs
      Toggle submenu
      • Cloud computing services
      • Cybersecurity products and services
      • Governmentwide acquisition contracts
      • MAS information technology
      • USAccess
    • Government initiatives
      Toggle submenu
      • Artificial Intelligence
      • Cybersecurity
      • Emerging citizen technology
      • FedRAMP
      • Federal identity, credentials, and access management
      • Robotic process automation community
      • Technology modernization fund
    • Training

    Featured Topics

    • Challenge.gov Government sponsored challenges and prize competitions.
    • Data.gov Access U.S. government data.
    • Multiple award schedule IT category Information technology products, services and solutions.
    • Explore about us
    • Background and history
      Toggle submenu
      • Overview
      • Mission and strategic goals
      • Role in presidential transitions
    • Careers
      Toggle submenu
      • Get an internship
      • Launch your career
      • Elevate your professional career
      • Discover special hiring paths
      • Resources and related links
    • Events and training
      Toggle submenu
      • Our training programs
    • Newsroom
      Toggle submenu
      • Agency blog
      • Congressional testimony
      • GSA does that podcast
      • News releases
      • Speeches
      • Videos
    • Organization
      Toggle submenu
      • Leadership directory
      • Federal Acquisition Service
      • Public Buildings Service
      • Staff offices
    • Regions
      Toggle submenu
      • Region 1 | New England
      • Region 2 | Northeast and Caribbean
      • Region 3 | Mid-Atlantic
      • Region 4 | Southeast Sunbelt
      • Region 5 | Great Lakes
      • Region 6 | Heartland
      • Region 7 | Greater Southwest
      • Region 8 | Rocky Mountain
      • Region 9 | Pacific Rim
      • Region 10 | Northwest/Arctic
      • Region 11 | National Capital Region
    • Contact us

    Featured Topics

    • Blog Read the latest GSA news, updates and analysis.
    • Careers Learn what we have to offer.
  • Per diem lookup
Buy through us
Explore buy through us
Category management
Government property for sale or lease
Personal property (tangible goods)
Real property (real estate and buildings) for public use
Real property sales
Vehicle sales
Products and services
Human capital
Industrial products and services
Office management
Professional services
Security and protection
Transportation and logistics services
Purchasing programs
Assisted acquisition
Commercial platforms
Emergency acquisition basic ordering agreements
Federal strategic sourcing initiative
Fleet management
HCaTS and HCaTS SB
OASIS and OASIS SB
Requisition programs
State and local programs
Shared services
Payroll services
Support services for CABs
Sell to government
Explore sell to government
Step 1: Learn about government contracting
Ways you can sell to government
How to access contract opportunities
Conduct market research
Step 2: Compete for a contract
Register your business
Certify as a small business
Become a schedule holder
Market your business
Research active solicitations
Respond to a solicitation
What to expect during the award process
Step 3: Manage your contract
Comply with contractual requirements
Handle contract modifications
Monitor past performance evaluations
Real estate
Explore real estate
Design and construction
3D-4D building information modeling
Computer-aided design standards
Engineering
Project management information system
Prospectus thresholds
Facilities management
Security
Tenant services
Water quality management
Our properties
Owned and leased properties
Regional buildings
Renting property
Real estate services
Leasing
Real property disposal
Reimbursable services (RWA)
For businesses seeking opportunities
For workers in federal buildings
Voice of the customer
Workplace optimization
Commercial coworking
Federal coworking
Policy and regulations
Explore policy and regulations
Acquisition management policy
Aviation management policy
Information technology policy
Real property management policy
Relocation management policy
Travel management policy
Vehicle management policy
Regulations
Federal acquisition regulations
Federal management regulations
Federal travel regulations
Small business
Explore small business
Small business goals
Register your business
Explore business models
Research the federal market
Subcontracting and other partnerships
Forecast of contracting opportunities
Small business resources
Small business contacts
Small business events
Videos
Travel
Explore travel
Plan a trip
Per diem rates
Transportation (airfare rates, POV rates, etc.)
Lodging
Travel charge card
Travel and lodging services
E-gov travel service (ETS)
Rideshare
Travel category schedule
Federal travel regulation
Technology
Explore technology
Build websites and digital services
Purchasing programs
Cloud computing services
Cybersecurity products and services
Governmentwide acquisition contracts
MAS information technology
USAccess
Government initiatives
Artificial Intelligence
Cybersecurity
Emerging citizen technology
FedRAMP
Federal identity, credentials, and access management
Robotic process automation community
Technology modernization fund
Training
About us
Explore about us
Background and history
Overview
Mission and strategic goals
Role in presidential transitions
Careers
Get an internship
Launch your career
Elevate your professional career
Discover special hiring paths
Resources and related links
Events and training
Our training programs
Newsroom
Agency blog
Congressional testimony
GSA does that podcast
News releases
Speeches
Videos
Organization
Leadership directory
Federal Acquisition Service
Public Buildings Service
Staff offices
Regions
Region 1 | New England
Region 2 | Northeast and Caribbean
Region 3 | Mid-Atlantic
Region 4 | Southeast Sunbelt
Region 5 | Great Lakes
Region 6 | Heartland
Region 7 | Greater Southwest
Region 8 | Rocky Mountain
Region 9 | Pacific Rim
Region 10 | Northwest/Arctic
Region 11 | National Capital Region
Contact us
  1. Home
  2. Buy through us
  3. Products and services
  4. Professional services
  5. Buy Services
  6. OASIS Plus
  7. About OASIS Plus
  8. Domains, scope and labor categories
  9. NAICS codes by domain

NAICS codes by domain

Determining the appropriate primary NAICS code

OASIS+ domains contain multiple NAICS codes. Federal Acquisition Regulation 19.102 requires the Ordering Contracting Officer, or OCO, to determine the appropriate NAICS code and related small business size standard and include them in all solicitations above the micro-purchase threshold. FAR 19.102(b)(1) requires that the NAICS code assigned describe the principal nature of the service being acquired.

The primary NAICS code for all OASIS+ UR contracts will be selected and assigned based on the smallest size standard within its awarded Domains. When the OASIS+ CO assigns a primary NAICS Code, receipts-based size standards take precedence over NAICS codes based on employees. This primary NAICS code will be reflected in each awarded contract and associated Federal Procurement Data System, or FPDS, record. However, assignment of a primary NAICS code does not limit contractors’ eligibility to respond to task order solicitations or perform work outside of the NAICS assigned as their primary NAICS on their contract. Contractors will be eligible to compete within all awarded Domain Contract Line Item Numbers CLINs (NAICS codes), which represent the contractor’s specific fair opportunity pools.

The primary NAICS code for all OASIS+ SB contracts will be selected and assigned based on the largest size standard within its awarded Domains. When the OASIS+ Contracting Officer assigns a primary NAICS code, employee-based size standards take precedence over NAICS codes based on annual receipts. This is critical to ensure contractors are not locked out of Domain fair opportunity during re-representation in accordance with Section G.3.1.7.2, as long as they are otherwise eligible based on their size standard at time of re-representation.

Understanding primary-level NAICS codes vs task order-level NAICS codes

For administrative purposes only, the six OASIS+ solicitations are assigned a single NAICS code (541990) which represents the preponderance scope of the OASIS+ Contract Program as a whole. This is not the NAICS that will be reported at the task order level.

FPDS is currently designed to accept only one NAICS code to be associated with a procurement action. This is simply a limitation of the FPDS system and has no bearing on individual task order NAICS code assignments. The OASIS+ process of NAICS code assignment at the individual master contract level is for administrative purposes, and will ensure proper socioeconomic and size status reporting at the task order level. Due to a limitation with the FPDS, only a single NAICS code may be assigned to a contract and subsequently reported with each contract action (i.e., task order); therefore, each contractor will be assigned a single primary NAICS code to its master contract based on its awarded Domains. This primary NAICS code will be reflected in each awarded contract and associated FPDS record. However, assignment of a primary NAICS code does not limit contractors’ eligibility to respond to task order solicitations or perform work outside of the NAICS assigned as their primary NAICS on their contract. contractors will be eligible to compete within all awarded Domain CLINs (NAICS codes), which represent the contractor’s specific fair opportunity pools. Fair opportunity will be managed in the OSP, which will be the mandatory, sole system for OCOs to issue task order solicitations. The contractor will only be included in and allowed to compete under the NAICS codes where they are represented (and subsequently re-represent) as a small business concern for the corresponding size standard, and are otherwise eligible under the socioeconomic contract.
 

Management & Advisory

 

This domain includes a full range of management and consulting services that can improve a Federal agency’s performance, its endeavors to meet mission goals, and provide operating advice and assistance on administrative and management issues. Management and Advisory Domain scope areas include, but are not limited to:

  • Acquisition & grants management support
  • Business case development/analysis support
  • Business consulting
  • Business intelligence support
  • Business process improvement
  • Business process reengineering
  • Change management
  • Concept development & requirements analysis
  • Configuration management
  • Cost/schedule/performance analysis & improvement
  • Cost estimation & analysis
  • Cost/performance trade-off analysis & studies
  • Decision analysis
  • Earned value management (EVM) analysis
  • Ebusiness support
  • Executive-level administrative support
  • Governance
  • Horizontal analysis & protection activities
  • Information analytics
  • Integration of support systems
  • Interface management
  • Investigative services
  • Knowledge based acquisition
  • Knowledge management
  • Leadership & organizational assessments
  • Long range planning, futures, & forecasting
  • Manpower estimating
  • Policy analysis
  • Project management, program management, integrated program management
  • Program documentation
  • Coordination with law/policy making entities
  • Regulatory compliance support
  • Requirements management
  • Risk assessment, mitigation, & management
  • Stakeholder requirements analysis
  • Strategy development
  • Strategic forecasting & planning
  • Technical & analytical support
  • Vulnerability assessment

M&A NAICS codes

CLIN key: X: 1=SB; 2=8(a); 3=HUBZone; 4=SDVOSB; 5=WOSB; 6=UR

CLINNAICS code and titleSize standard
X0101541611 Administrative Management and General Management Consulting Services$24.5 Million
X0102541612 Human Resources Consulting Services$29.0 Million
X0103541613 Marketing Consulting Services$19.0 Million
X0104541614 Process, Physical Distribution, and Logistics Consulting Services$20.0 Million
X0105541618 Other Management Consulting Services$19.0 Million
X0106541620 Environmental Consulting Services$19.0 Million
X0107541690 Other Scientific and Technical Consulting Services$19.0 Million
X0108541990 All Other Professional, Scientific and Technical Services$19.5 Million

Technical & Engineering

 

This Domain includes requirements to provide specific engineering, geoscience, or other technical professional skills, such as those performed by engineers, geologists, geophysicists, and technicians, required to handle specific operating conditions and problems for the benefit of the government. Work under this Domain typically involves the application of physical laws and principles of engineering in the design; development, and utilization of machines, materials, instruments, processes, and systems; and providing expert advice and assistance on technical functions and issues. Technical and Engineering Domain scope areas include, but are not limited to:

  • Advanced technology pilot & trials
  • Alternative energy sources & engineering
  • Capabilities integration & development
  • Communications engineering
  • Configuration management
  • Concept development
  • Data analytics & management
  • Design documentation & technical data
  • Energy services to include management planning & strategies, audit services & metering
  • Engineering (aeronautical, astronomical, chemical, civil, electrical, materials, mechanical, Etc.)
  • Engineering process improvement
  • Environmental engineering
  • Human factors/usability engineering
  • Human systems integration
  • Independent verification & validation
  • Integration support
  • Interoperability
  • Life cycle management
  • Mission assurance
  • Modeling & simulation
  • Operational test & evaluation
  • Optical engineering
  • Program analysis
  • Quality assurance
  • Radar engineering
  • Red teaming & wargaming
  • Requirements analysis (technical)
  • Operation & maintenance or direct support of an existing weapon system or major system
  • Risk management
  • Scientific (non-R&D) analysis & support
  • Software development (for IT services involving 40 USC § 11103 (a) activities)
  • Surveying and mapping (except Geophysical) services
  • System design & integration
  • System effectiveness & analysis
  • System engineering
  • System safety engineering
  • System security & information assurance
  • System verification & validation
  • Technical assessment, data management, & planning
  • Technical documentation

T&E NAICS codes

CLIN key: X: 1=SB; 2=8(a); 3=HUBZone; 4=SDVOSB; 5=WOSB; 6=UR

CLINNAICS code and titleSize standard
X0201336611 Ship Building and Repairing1,300 employees
X0202488190 Other Support Activities for Air Transportation$40.0 Million
X0203488999 All Other Support Activities for Transportation$25.0 Million
X0204541310 Architectural Services$12.5 Million
X0205541330 Engineering Services$25.5 Million
X0206541330 (Exception 1) Military and Aerospace Equipment and Military Weapons$47.0 Million
X0207541330 (Exception 2) Contracts and Subcontracts for Engineering Services Awarded Under the National Energy Policy Act of 1992$47.0 Million
X0208541330 (Exception 3) Marine Engineering and Naval Architecture$47.0 Million
X0209541350 Building Inspection Services$11.5 Million
X0210541360 Geophysical Surveying and Mapping Services$28.5 Million
X0211541370 Surveying and Mapping (except Geophysical) Services$19.0 Million
X0212541380 Testing Laboratories$19.0 Million
X0213541611 Administrative Management and General Management Consulting Services$24.5 Million
X0214541690 Other Scientific and Technical Consulting Services$19.0 Million
X0215541990 All Other Professional, Scientific and Technical Services$19.5 Million
X0216611512 Flight Training$34.0 Million

 

Research & Development

 

This Domain includes any requirements in support of Research and Development (R&D) activities. R&D activities may be aimed at achieving either specific or general objectives. The term R&D includes basic research, applied research and experimental development. Services include conducting R&D in: the physical, engineering and life sciences, Nanotechnology, Biotechnology and social sciences and humanities. The R&D Domain scope areas include, but are not limited to:

  • Cell & tissue culture & engineering
  • Conceptual design & modification of product or process alternatives
  • Design & specification development
  • Conducting clinical tests to satisfy requirements prior to commercialization
  • Decision support sciences
  • Design & improvement of manufacturing or production technologies, processes, techniques
  • Design, construction, & testing of preproduction prototypes & models
  • Design, development & implementation of new reagents, testing methods or protocols
  • Design of tools & materials involving new technology
  • Development of new experimental therapeutic drugs, compounds, or molecules
  • Development of tools, resources & procedures relating to advanced biologics, assays & testing
  • Development of new methods for drug delivery
  • DNA: genomics, gene probes, DNA sequencing, genetic engineering
  • Environmental science research
  • Experimental development
  • Laboratory & clinical research
  • Life science research
  • Mathematical science research
  • Physical science research
  • Biotechnology research & process development
  • Product experimentation & modification
  • Psychological science research
  • R&D advanced training
  • R&D of automated processes or robotics
  • Protein/peptide sequencing & synthesis
  • Research of new applications for existing products
  • Software development or I.T. initiatives related to experimental product or process improvements
  • Social science research
  • Special studies & analysis
  • Technical research consulting, development, and facilitation services
  • Technology transfer/insertion, training & consulting
  • Test & evaluation (non-routine) services
  • Regulatory requirements compliance testing

R&D NAICS codes

CLIN key: X: 1=SB; 2=8(a); 3=HUBZone; 4=SDVOSB; 5=WOSB; 6=UR

CLINNAICS code and titleSize standard
X0301541330 Engineering Services$25.5 Million
X0302541330 (Exception 1) Military and Aerospace Equipment and Military Weapons$47.0 Million
X0303541330 (Exception 2) Contracts and Subcontracts for Engineering Services Awarded Under the National Energy Policy Act of 1992$47.0 Million
X0304541330 (Exception 3) Marine Engineering and Naval Architecture$47.0 Million
X0305541380 Testing Laboratories$19.0 Million
X0306541611 Administrative Management and General Management Consulting Services$24.5 Million
X0307541690 Other Scientific and Technical Consulting Services$19.0 Million
X0308541713 Research and Technology in Nanotechnology1,000 employees
X0309541714 Research and Technology in Biotechnology (except Nanobiotechnology)1,000 employees
X0310541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)1,000 employees
X0311541715 (Exception 1) Aircraft, Aircraft Engine and Engine Parts1,500 employees
X0312541715 (Exception 2) Other Aircraft Parts and Auxiliary Equipment1,250 employees
X0313541715 (Exception 3) Guided Missiles and Space Vehicles, Their Propulsion Units and Propulsion Parts1,300 employees
X0314541720 Research and Development in the Social Sciences and Humanities$28.0 Million
X0315541990 All Other Professional, Scientific and Technical Services$19.5 Million
X0316621511 Medical Laboratories$41.5 Million

 

Intelligence Services
 

This Domain focuses on Command, Control, Communications, Intelligence, Surveillance, and Reconnaissance mission requirements. Organizational and Technological capabilities improve situational awareness and enhance command and control strategies within defense and intelligence environments. Intelligence Services Domain scope areas include, but are not limited to:

  • Assured positioning, navigation & timing capabilities support
  • Prototyping, integrating & testing
  • Command, power & integration support
  • Counter-IED & minefield detection & neutralization
  • Counterintelligence (CI)
  • Cyberspace operational support
  • Cyber & tactical network science
  • Detection & neutralization of explosive hazards
  • Electro-optical/infrared surveillance
  • Electronic countermeasures
  • Information superiority support
  • Electromagnetic spectrum operations
  • Field & enterprise intelligence support
  • Geospatial intelligence (GEOINT)
  • Human intelligence (HUMINT)
  • Imagery intelligence (IMINT)
  • Integrated power support services
  • Intelligence, information and electronic warfare
  • Intelligence production, collection, analysis, exploitation & dissemination
  • Intelligence, surveillance, reconnaissance, & targeting (ISRT) development & support
  • Intelligence analysis
  • Intelligence archiving
  • Intelligence cataloging
  • Intelligence retrieval
  • Intelligence management
  • Measurement and signature intelligence (MASINT)
  • Mission command, planning & application
  • Network visualization
  • Night vision, electronic, & optical surveillance
  • Offensive & defensive cyber operations
  • Open source intelligence (OSINT)
  • Power/energy generation & management
  • Product realization engineering
  • Secure correspondence management
  • Signals intelligence (SIGINT)
  • Software development (for IT services involving 40 USC § 11103 (a) activities)
  • Standardized software framework implementation
  • Space & terrestrial communications
  • Specialized functional training
  • Tactical & strategic network support
  • Tactical cyberspace operations
  • Technical Intelligence (TECHINT)
  • Threat modeling & simulation
  • Unmanned systems

INTEL NAICS codes

CLIN key: X: 1=SB; 2=8(a); 3=HUBZone; 4=SDVOSB; 5=WOSB; 6=UR

CLINNAICS code and titleSize standard
X0401541330 Engineering Services$25.5 Million
X0402541330 (Exception 1) Military and Aerospace Equipment and Military Weapons$47.0 Million
X0403541330 (Exception 2) Contracts and Subcontracts for Engineering Services Awarded Under the National Energy Policy Act of 1992$47.0 Million
X0404541330 (Exception 3) Marine Engineering and Naval Architecture$47.0 Million
X0405541611 Administrative Management and General Management Consulting Services$24.5 Million
X0406541614 Process, Physical Distribution and Logistics Consulting Services$20.0 Million
X0407541618 Other Management Consulting Services$19.0 Million
X0408541690 Other Scientific and Technical Consulting Services$19.0 Million
X0409541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)1,000 employees
X0410541715 (Exception 1) Aircraft, Aircraft Engine and Engine Parts1,500 employees
X0411541715 (Exception 2) Other Aircraft Parts and Auxiliary Equipment1,250 employees
X0412541715 (Exception 3) Guided Missiles and Space Vehicles, Their Propulsion Units and Propulsion Parts1,300 employees
X0413541720 Research and Development in the Social Sciences and Humanities$28.0 Million
X0414541990 All Other Professional, Scientific and Technical Services$19.5 Million
X0415561499 All Other Business Support Services$21.5 Million
X0416561611 Investigation Services$25.0 Million

 

Environmental

 

This Domain supports agencies in meeting their environmental requirements and streamlining the contracting process by providing a faster, more cost-efficient means to meet environmental objectives. Requirements typically involve multi disciplined teams of scientists, engineers, and other technicians with expertise in areas, such as air and water quality, asbestos contamination, remediation, ecological restoration, and environmental law. Environmental consulting could consist of support such as Planning and Documentation Services for the development, facilitation, and coordination of and/or for environmental initiatives or mandates in areas of chemical, radiological, and/or hazardous materials. Environmental Domain scope areas include, but are not limited to:

  • Air monitoring
  • Air toxicology & criteria pollutants strategy & analyses
  • Archeological/cultural resource management plans
  • Archaeological site consulting & preservation
  • Biomass & biofuel energy strategy & analyses
  • Carbon capture, utilization & storage
  • Cleanup and assessment of emerging contaminants (PFAS)
  • Consulting on endangered species, wetland & watershed protection
  • Crop & tree migration
  • Cultural resource geographic information services
  • Emissions reduction strategy & analyses (locomotives, marine vessels, aircraft, etc.)
  • Environmental consulting
  • Environmental education
  • Environmental emergency response
  • Environmental engineering
  • Environmental information management
  • Environmental impact assessment
  • Environmental management & monitoring
  • Environmental remediation
  • Environmental risk assessment
  • Environmental toxicology
  • Forest land fire management planning
  • Geographical information systems (GIS) support
  • Hazardous material management, planning, disposal & remediation
  • Laboratory (environmental) testing
  • Land use planning
  • Mapping, cartography & integrated mapping from various data sources
  • Migration pattern analysis
  • Munitions / unexploded ordnance cleanup
  • Natural resource management & planning
  • Pollutant contamination planning, assessment & mitigation
  • Reclamation services
  • Regulatory development and compliance
  • Remote sensing for environmental studies
  • Terrestrial, marine, atmospheric measuring & management
  • Thermal mapping
  • Sea-level rise analysis & response
  • Sediment management
  • Storage tank (above & below ground) removal
  • Stormwater management
  • Vegetation & topography mapping
  • Vehicle fleet electrification support
  • Water and/or wastewater and/or groundwater monitoring
  • Water and/or wastewater infrastructure
  • Water conservation and/or pollution prevention
  • Watershed characterization & assessment

ENV NAICS codes

CLIN key: X: 1=SB; 2=8(a); 3=HUBZone; 4=SDVOSB; 5=WOSB; 6=UR

CLINNAICS code and titleSize standard
X0601541330 Engineering Services$25.5 Million
X0602541360 Geophysical Surveying and Mapping Services$28.5 Million
X0603541380 Testing Laboratories$19.0 Million
X0604541620 Environmental Consulting Services$19.0 Million
X0605541690 Other Scientific and Technical Consulting Services$19.0 Million
X0606541990 All Other Professional, Scientific and Technical Services$19.5 Million
X0607561210 Facilities Support Services$47.0 Million
X0608562112 Hazardous Waste Collection$47.0 Million
X0609562211 Hazardous Waste Treatment and Disposal$47.0 Million
X0610562910 Remediation Services$25.0 Million
X0611562910 (Exception) Environmental Remediation Services1,000 employees

 

Facilities

 

Services in this Domain include any and all services required to maintain and operate buildings, paved services, utilities infrastructure, and real property assets and equipment. This could include major facilities support such as DoD installations, hospitals, cemeteries, and other Federal or industrial real property, but does not include major/primary purpose construction. GSA has included a wide range of services found in facilities contracts because of their historical use to support total facilities solutions. Facilities Domain scope areas include, but are not limited to:

  • Airfield lighting services
  • Airport security services & surveillance
  • Alarm and security system maintenance
  • Architectural & framework building maintenance services
  • Base operation support services
  • Building inspection services (including OSHA)
  • Building management services
  • Cathodic protection & corrosion control
  • Cemetery maintenance
  • Civil engineering services
  • Commissioning services
  • Communication services - general
  • Communication services - telecommunications
  • Community center management
  • Conference center support
  • Custodial services
  • Electrical services (electrical maintenance)
  • Elevator services (elevator maintenance)
  • Elevator inspection services
  • Emergency management services
  • Energy management control systems (EMCS)
  • Energy and water conservation management and reporting
  • Engineering management services
  • Engineering to support installation of facility resource & optimization (R&O) decisions to distribute limited & scarce future funding
  • Engineering to support construction cost estimates
  • Engineering services to provide general management over current & future maintenance
  • Environmental compliance & conservation
  • Environmental pollution prevention
  • Equipment and electronics maintenance
  • Facility & installation maintenance services
  • Fire alarm/fire suppression (fire suppression system preventative maintenance & repair)
  • Fire alarm system maintenance & repair
  • Fire protection and emergency services
  • Fitness / Sport Center Management
  • Force protection assets & entry control points
  • Fuels management
  • Grounds maintenance
  • HVAC services (HVAC maintenance)
  • Infrastructure planning
  • Insect & pest control
  • Integrated waste management services
  • Janitorial services
  • Landscaping/grounds maintenance
  • Locksmiths
  • Logistics planning
  • Ground transportation services
  • Installation deployment readiness center (IDRC)
  • Mailroom services
  • Maintenance of fuel distribution & grounding systems
  • Material management
  • Operations & maintenance (O/M) of facilities
  • O/M of aerospace facilities & equipment
  • O/M of airfields
  • O/M of electrical distribution & HVAC systems
  • O/M engineering
  • O/M of fresh water system
  • O/M of historic facilities
  • O/M of utility & sanitation systems
  • Plumbing & pipefitting services
  • Pollution prevention & remediation programs.
  • Real property management
  • Refuse collection and disposal
  • Renewable energy systems
  • Repair & restoration projects
  • Roofing services
  • Security forces services
  • Sensitive Compartmented Information Facilities (SCIF)
  • Septic services
  • Snow removal
  • Street sweeping & maintenance
  • Traffic management
  • Vehicle management
  • Water distribution
  • Water tanks
  • Waste management & recycling services

FAC NAICS codes

CLIN key: X: 1=SB; 2=8(a); 3=HUBZone; 4=SDVOSB; 5=WOSB; 6=UR

CLINNAICS code and titleSize standard
X0701238160 Roofing Contractors$19.0 Million
X0702238210 Electrical Contractors and Other Wiring Installation Contractors$19.0 Million
X0703238220 Plumbing, Heating, and Air Conditioning Contractors$19.0 Million
X0704238290 Other Building Equipment Contractors$22.0 Million
X0705238320 Painting and Wall Covering Contractors$19.0 Million
X0706238990 All Other Specialty Trade Contractors$19.0 Million
X0707485999 All Other Transit and Ground Passenger transportation$19.0 Million
X0708488190 Other Support Activities for Air Transportation$40.0 Million
X0709488490 Other Support Activities for Road Transportation$18.0 Million
X0710488999 All Other Support Activities for Transportation$25.0 Million
X0711531311 Residential Property Managers$12.5 Million
X0712531312 Nonresidential Property Managers$19.5 Million
X0713541320 Landscape Architectural Services$9.0 Million
X0714541330 Engineering Services$25.5 Million
X0715541350 Building Inspection Services$11.5 Million
X0716541611 Administrative Management and General Management Consulting Services$24.5 Million
X0717541614 Process, Physical Distribution and Logistics Consulting Services$20.0 Million
X0718541690 Other Scientific and Technical Consulting Services$19.0 Million
X0719541990 All Other Professional, Scientific and Technical Services$19.5 Million
X0720561210 Facilities Support Services$47.0 Million
X0721561621 Security Systems Services (except Locksmiths)$25.0 Million
X0722561710 Exterminating and Pest Control Services$17.5 Million
X0723561720 Janitorial Services$22.0 Million
X0724561730 Landscaping Services$9.5 Million
X07025561990 All Other Support Services$16.5 Million
X07026562111 Solid Waste Collection$47.0 Million
X0727562112 Hazardous Waste Collection$47.0 Million
X0728562211 Hazardous Waste Treatment and Disposal$47.0 Million
X07029811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance$12.5 Million

 

Logistics

 

Services on this Domain include comprehensive logistics solutions, including planning and designing, implementing, or operating systems or facilities for the movement of supplies, equipment or people by road, air, water, rail, or pipeline. Logistics Domain scope areas include, but are not limited to:

  • Analysis & recommendation of support equipment
  • Cold chain medical supply services
  • Deployment logistics
  • Disaster management/contingency operations
  • Distribution & transportation
  • Food & perishable goods supply services
  • Industrial relocation/expansion services
  • Infrastructure services (including transportation & delivery)
  • Integrated Product Support (IPS) technical requirement creation
  • Integrating public & private resources
  • IPS system design, risk assessment, schedules creation & performance tracking
  • Inventory management
  • Life cycle sustainment
  • Logistical studies & evaluation
  • Logistics design
  • Logistics management & support services
  • Logistics operations support & maintenance
  • Logistics optimization
  • Logistics services
  • Logistics training services
  • Rapid deployment of supplies & equipment through communication & logistics systems
  • Repair & alteration
  • Resource sourcing - global, regional, local, etc.
  • Specialized cargo management
  • Supply chain management & provisioning
  • Supportability analysis & implementation
  • Technology & industrial base
  • Test range support
  • Value chain management

LOG NAICS codes

CLIN key: X: 1=SB; 2=8(a); 3=HUBZone; 4=SDVOSB; 5=WOSB; 6=UR

CLINNAICS code and titleSize standard
X0801336611 Ship Building and Repairing1,300 employees
X0802481211 Nonscheduled Chartered Passenger Air Transportation1,500 employees
X0803485991 Special Needs Transportation$19.0 Million
X0804485999 All Other Transit and Ground Passenger Transportation$19.0 Million
X0805488111 Air Traffic Control$40.0 Million
X0806488190 Other Support Activities for Air Transportation$40.0 Million
X0807488999 All Other Support Activities for Transportation$25.0 Million
X0808492110 Couriers and Express Delivery Services1,500 employees
X0809493110 General Warehousing and Storage$34.0 Million
X0810493120 Refrigerated Warehousing and Storage$36.5 Million
X0811493190 Other Warehousing and Storage$36.5 Million
X0812541330 Engineering Services$25.5 Million
X0813541614 Process, Physical Distribution and Logistics Consulting Services$20.0 Million
X0814541690 Other Scientific and Technical Consulting Services$19.0 Million
X0815541990 All Other Professional, Scientific and Technical Services$19.5 Million
X0816561210 Facilities Support Services$47.0 Million
X0817811114 Specialized Automotive Repair$9.0 Million
X0818811121 Automotive Body, Paint and Interior Repair and Maintenance$9.0 Million
X0819811198 All Other Automotive Repair and Maintenance$10.0 Million

 

Enterprise Solutions (UR Only)

 

This Domain is for the procurement of highly technical, new and emerging and/or specialized mission objectives that require special management attention, and oversight because of the importance to the agency mission; high-level development, operating, or maintenance costs; high risk; high return; or their significant role in the administration of agency-wide programs, systems, finances, property, or other resources. This Domain also includes non-IT services in support of national security systems in accordance with 40 USC § 11103(a).

The Enterprise Solutions Domain is focused on requirements that are large-dollar, wide-reaching (e.g., across one organization, agency or multiple organizations and/or agencies) and highly complex in scope. By design, this Domain shares overlapping NAICS with other Domains within OASIS+. This Domain includes contractors who are able to manage vast projects with the potential of (but not limited to) the following highly specialized project requirements:

  • Multi-layered subcontracting teams
  • High touch/high accountability in the areas of contractor acquired or contractor managed government Property
  • Vast accounting system, estimating system, and invoicing demands
  • Stringent quality control and government quality assurance oversight and accountability
  • Geographically dispersed project offices (on the government site, or the contractor site)
  • Requirements for extensive upfront capital to launch, transition into, and/or sustain for long periods of time due to the high-capital-demand value to launch and sustain business operations in support of an agency mission requirement(s).
  • The minimum order threshold for future task orders issued through this Domain is $250 Million total estimated value (including the base and all option periods). 

ENT NAICS codes

CLINNAICS code and titleSize standard
60501336611 Ship Building and Repairing1,300 employees
60502541330 Engineering Services$25.5 Million
60503541330 (Exception 1) Military and Aerospace Equipment and Military Weapons$47.0 Million
60504541330 (Exception 2) Contracts and Subcontracts for Engineering Services Awarded Under the National Energy Policy Act of 1992$47.0 Million
60505541330 (Exception 3) Marine Engineering and Naval Architecture$47.0 Million
60506541611 Administrative Management and General Management Consulting Services$24.5 Million
60507541614 Process, Physical Distribution, and Logistics Consulting Services$20.0 Million
60508541620 Environmental Consulting Services$19.0 Million
60509541690 Other Scientific and Technical Consulting Services$19.0 Million
60510541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)1,000 employees
60511541715 (Exception 1) Aircraft, Aircraft Engine and Engine Parts1,500 employees
60512541715 (Exception 2) Other Aircraft Parts and Auxiliary Equipment1,250 employees
605013541715 (Exception 3) Guided Missiles and Space Vehicles, Their Propulsion Units and Propulsion Parts1,300 employees
60514541990 All Other Professional, Scientific and Technical Services$19.5 Million
60515561210 Facilities Support Services$47.0 Million
60516562910 Remediation Services$25.0 Million
60517562910 (Exception) Environmental Remediation Services1,000 employees

This text should be removed when the Views module is implemented and the buyers’ guide is no longer dependent on Text Blocks.

Print Page Email Page
Last updated: Apr 24, 2025
Top
    • OASIS Plus
    • About OASIS Plus
      • Government roles and responsibilities
      • Contracts
      • Domains, scope and labor categories
        • NAICS codes by domain
      • How OASIS+ compares to legacy OASIS
      • Awards timeline
    • Buyers’ guide
    • Sellers’ guide
    • Resources
    • Events and training
    • Community
    • Contact OASIS Plus

Home

  • Resources for …
    • Americans with Disabilities
    • Citizens and Consumers
    • Federal Employees
    • GSA Employees
    • Native American affairs
    • Presidential & Congressional Commissions, Boards or Small Agencies
    • Small Business
  • Governmentwide Initiatives
    • Centers of Excellence
    • Digital experience
    • Emergency response
    • Federal Cybersecurity
    • ID, Credentials, and Access Management
    • Information Quality
    • Open Data
    • Technology Modernization Fund
  • Contact Us
  • Organization
    • Leadership Directory
    • Staff Directory
  • References
    • Annual reports
    • Plain Language
    • Budget and Performance
    • Catalogs
    • Orders & Directives
    • Forms
  • Website Information
    • Accessibility statement
    • A-Z Index
    • Report a website issue
    • Sitemap
  • Also of Interest
    • Data.gov
    • Whitehouse.gov
  • Tools
    • eBuy
    • eLibrary
    • Contracting forecast tool
    • GSA Advantage
    • GSA Auctions
GSA logo
  • Facebook
  • X
  • LinkedIn
  • YouTube
  • instagram
  • Blog
  • email

JOIN THE CONVERSATION

GSA.gov

An official website of the U.S. General Services Administration

  • Accessibility statement
  • Website Policies
  • Reports
  • Office of the Inspector General
  • No FEAR Act
  • FOIA Requests
  • Board of Contract Appeals
Looking for U.S. government information and services?
Visit USA.gov

PER DIEM LOOK-UP

1 Choose a location

Error, The Per Diem API is not responding. Please try again later.

No results could be found for the location you've entered.

Get my location

OR

OR

Rates for Alaska, Hawaii, and U.S. territories and possessions are set by the Department of Defense.

Rates for foreign countries are set by the Department of State.

2 Choose a date


OR

Rates are available between 10/1/2022 and 09/30/2025.

The End Date of your trip can not occur before the Start Date.

 
 
Additional terms and conditions

Traveler reimbursement is based on the location of the work activities and not the accommodations, unless lodging is not available at the work activity, then the agency may authorize the rate where lodging is obtained.

Unless otherwise specified, the per diem locality is defined as "all locations within, or entirely surrounded by, the corporate limits of the key city, including independent entities located within those boundaries."

Per diem localities with county definitions shall include"all locations within, or entirely surrounded by, the corporate limits of the key city as well as the boundaries of the listed counties, including independent entities located within the boundaries of the key city and the listed counties (unless otherwise listed separately)."

When a military installation or Government - related facility(whether or not specifically named) is located partially within more than one city or county boundary, the applicable per diem rate for the entire installation or facility is the higher of the rates which apply to the cities and / or counties, even though part(s) of such activities may be located outside the defined per diem locality.