Buyers Guidance and Resources

How to Use OASIS

The GSA OASIS Tier 3, Best-in-Class (BIC) solutions make procuring complex professional services expedient by maximizing streamlined acquisition processes. The following resources are designed to help buyers use the OASIS suite of contracts.

Two ways to access OASIS:

  • Direct Acquisition - GSA issues a Delegation of Procurement Authority to the customer agency Ordering Contracting Officer (OCO) who performs the acquisition; or
  • Assisted Acquisition - GSA performs the acquisition on behalf of the customer agency and provides post-award support, as negotiated with the customer. An Inter-Agency Agreement is required.

Review the OASIS Order One Page Checklist [PDF - 174 KB] to learn how to issue an order under OASIS.

The OASIS Master Contract and OASIS SB Master Contract will help your agency acquire professional services for integrated solutions more efficiently and economically.

8(a) Program Update: Please be informed that the 8(a) Sole Source Limitations at FAR 19.805-1(a)(2) has increased from $4.0M to $4.5M and FAR 19.808-1(a) has increased from $22M to $25M by way of FAC 2021-01.

Email links to Contractor pools are in the table below.

Please send all COCM and COPM updates, request for changes, or errors found in the spreadsheet to (do not cc or

Warning: It is strictly prohibited to send emails by way of the following Pool Links if you are not an authorized government official. Non-authorized personnel may contact the Prime Contract holders individually but not through the use of the following Pool Links.

  • The following OASIS Unrestricted (U), OASIS Small Business (SB), and OASIS 8(a) Pool Links generate a group email to the official Points of Contact for all the Prime Contract holders in the respective Pools
  • The primary purpose of the Pool links are for authorized government officials issuing Requests for Proposals (RFP), Requests for Information (RFIs), or other Market Research requests to the OASIS U, OASIS SB, or OASIS 8(a) Prime Contract holders by Pool.

Important: Each Pool is a separate Multiple Award Task Order Contract (MATOC). When issuing an RFP, only one Contract Vehicle (OASIS U, OASIS SB, or 8(a) pools) and one Pool can be solicited. Pool selection is based on the predominate NAICS Code (definitions by OASIS Pool Numbers) [PDF - 177 KB] assigned to the solicitation (see Ordering Guide Appendix A [DOCX - 384 KB])

Select the OASIS Unrestricted pool link that corresponds to the predominate North American Industry Classification System (NAICS) code when issuing a RFP that is not a Total Small Business Set- Aside. Select the OASIS SB pool link that corresponds to the predominate NAICS code when issuing a RFP that is a Total Small Business Set-Aside (FAR 19.502-2).

Note: If clicking on the email link does not automatically pull up your email drafts, copy and paste the link into your email. Please do NOT carbon copy (cc) the or in your email to OASIS contractors

OASIS (Unrestricted) Pools OASIS SB (Total SB Set-Aside) Pools OASIS 8(a) Pools

To contact OASIS U Contractors, select the link below:

To contact OASIS SB Contractors, select the link below: To contact OASIS SB 8(a) Contractors, select the link below:

Pool 1:

SB Pool 1:

8(a) Pool 1:

Pool 2:

SB Pool 2:

8(a) Pool 2:

Pool 3:

SB Pool 3:

8(a) Pool 3:

Pool 4:

SB Pool 4:

8(a) Pool 4:

Pool 5A:

SB Pool 5A:

8(a) Pool 5B:
Pool 5B: SB Pool 5B:

Pool 6:

SB Pool 6:

GSA offers an optional OASIS scope review that analyzes the scope and Pool assignment of your proposed requirement.

To request a scope review you must:

  1. Complete the OASIS Scope Review Online form.
  2. Use the OASIS NAICS Code definitions document [PDF - 177 KB] to choose the NorthAmerican Industry Classification System (NAICS) code representing the principle purpose of your requirement
  3. Input that NAICS code and corresponding pool in the Primary NAICS field of the form. Example for military engineering: “NAICS 541330 Exception A (Pool 3)”
  4. Complete your Statement of Work (SOW)
  5. Complete your Independent Government Cost Estimate (IGCE) using your Agency’s government estimate with labor categories and hours template or generated using the OASIS Price Estimating Tool

We cannot complete the scope review until the completed scope review form, SOW and IGCE have been received. Note: If you do not hear back within five business days of submitting all documents, email for update.

Request a Delegation of Procurement Authority (DPA)

To help you obtain a Delegation of Procurement Authority (DPA), the OASIS Program offers training via webinar or in-person.

Contract Features

The OASIS program has created a variety of crosswalks to guide buyers through the acquisition process.

Download this snapshot of the OASIS pools [PDF - 220 KB].

Review the North American Industry Classification System (NAICS) Code Definitions by OASIS Pool Numbers [PDF - 177 KB]

  • All codes/exceptions in a pool share a common small business (SB) size standard.
  • Agencies can solicit task order proposals from contractors holding awards in the pool with the NAICS code that matches the agency's requirement.

The core disciplines/scopes of the contracts include:

  • The labor categories are aligned with occupations, as outlined in the Office of Management and Budget's (OMB) Standard Occupational Classification (SOC) system.

  • OASIS offers more meaningful proposed rate comparisons at the Task Order level (apples to apples)
    • 104 OASIS LCATs (individual and groups priced at the master contract level)
    • 127 OMB SOC occupations, and
    • 1,000 typical industry job titles
  • The remaining 840 SOC occupations can be added and priced at the task order level as ‘ancillary labor'

The OASIS Labor Category Crosswalk Table [XLSX - 81 KB] compares Industry's functional job descriptions and specific the Office of Management and Budget (OMB) Standard Occupational Classification (SOC) system occupational descriptions. In this table, you will find more than a thousand industry job titles with suggested SOC occupation and OASIS LCAT matches.

The OASIS Table of PSC codes by OASIS pool number [XLSX - 67 KB] is excerpted from Federal Procurement Data System-Next Generation (FPDS-NG) and only includes those in scope. Select the link to search for your Pool number and the various possible PSC Codes that may apply. (Note: The white drop down arrows on the table will streamline the process.)

Note: Ordering Contracting Officers (OCOs) are required to identify, in each task order solicitation, the PSC that represents the principal nature of the work, and report these PSCs in FPDS-NG.

The core disciplines/scopes of the contracts include:

Below is a list of agencies that have signed a Memorandum of Understanding to use the OASIS contracts and the related reduced Contract Assessment Fee (CAF) rate percentages.

Receiving Agency Negotiated CAF Rate Percentage
DOD Defense Procurement and Acquisition Policy (DPAP) [PDF - 1 MB] 0.10%
US Air Force [PDF - 83 KB] 0.10%

US Army [PDF - 504 KB]

Addendum to MoU [PDF - 64 KB]

US Navy [PDF - 96 KB] 0.10%
Department of Homeland Security [PDF - 70 KB] 0.25%

Centers for Medicare and Medicaid Services (CMMS) [PDF - 227 KB]

*(CMMS is a Bureau within The Department of Health and Human Services (HHS)).


Research Tools

These tools are designed to help buyers make better program and business decisions.

Launch the OASIS Dashboard

The OASIS Program created a tool that takes its data to the next level. OASIS stakeholders can now view and segment OASIS information to make better program and business decisions.

With the OASIS Dashboard, you have the ability to:

  • Explore OASIS and OASIS SB data by federal agency and industry partner; and
  • Build customized reports and download them to your computer.

Notice to Users: GSA strives to comply with Section 508 of the Rehabilitation Act of 1973. Some of the dashboard content presented through .swf files may not be completely accessible to users of assisted technology. If you experience technical issues, please contact BIEDW Support.

For content questions, please email OASIS Customer Support.

The OASIS Dashboard shortcut is

The Contract-Awarded Labor Category (CALC) tool helps federal contracting officers and others find awarded prices to use in negotiations for labor contracts. It offers ceiling prices, fully burdened costs, services data, and worldwide rates.

The OASIS Price Estimating Tool is designed to assist you in preparing the labor portion of your Independent Government Cost Estimate (IGCE).

The OASIS Price Estimating Tool User Guide [PDF - 1 MB], in combination with the OASIS Labor Categories Crosswalk [XLSX - 81 KB] companion document, provides detailed step-by-step instructions. For best results, the user must be familiar with the OASIS and OASIS Small Business contracts through self-study or by attending the Delegation of Procurement Authority (DPA) training. It is especially important to have an understanding of the Standardized Labor Categories and how they are priced.

Users can access the OASIS Price Estimating Tool directly (no log in or registration required) or via the GSA ASSIST web portal. Note: if accessing via ASSIST you must be registered in ASSIST.

OASIS Contractor Capability Statements pulled together by the OASIS Shared Interest Groups (OSIGs).

Other Resources

Agency customers are encouraged to reach out to the Vendor Support with questions about the FAS Sales Reporting portal, TDR training, user manuals and general vendor inquiries.

Contact the National Customer Service Center for general vendor inquiries.

Last Reviewed: 2021-11-24