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What You Need to Know About GSA’s Services MAC, an OASIS Replacement Blog Feature
Stephanie Hagan

By: Stephanie Hagan on August 5th, 2022

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What You Need to Know About GSA’s Services MAC, an OASIS Replacement

Government Business Development | Contracts | 5 Min Read

Another contract vehicle is on the horizon for government contractors—GSA is creating a new services Indefinite Delivery, Indefinite Quantity (IDIQ) to replace OASIS. Named Services Multi-Agency Contract (MAC) and also recently referred to as OASIS+, this contract vehicle will support GSA’s Federal Acquisition (FAS) Office of Professional Services and Human Capital Categories (PSHC) and will include a small business set-asides. Here’s what we know about the contract vehicle so far, including the reasoning behind its creation, its scope, and anticipated release dates.

What is GSA’s Services MAC?

Services MAC, or Services Multi-Agency Contract, is set to replace GSA’s One Acquisition Solution for Integrated Services (OASIS) contract vehicle (also why GSA is calling it OASIS+). Although it's not meant to replace OASIS exactly, it's expected to have the same functions as OASIS and more. This new contract vehicle will be an Indefinite Delivery, Indefinite Quantity (IDIQ) meaning it will provide an indefinite quantity of services for a fixed time.

Services MAC was introduced by the GSA Office of Professional Services and Human Capital (PSHC). Similar to OASIS, the primary purpose of the Services MAC is to give government agencies easy and efficient access to innovative services from highly qualified businesses. However, Services MAC is set to be broader and more flexible which we’ll cover below.

Why is GSA Creating a New Contract Vehicle?

While OASIS is considered a success, it’s set to sunset in 2024, and GSA wants to make sure there is a contract vehicle to take its place. Services MAC will build on the strengths of OASIS, however, GSA aims to make Services MAC a flexible, dynamic contract vehicle that addresses federal agencies’ needs better.

Services MAC is intended to support complex services while also eliminating duplicate contracts. Duplicate contracts can drive acquisition costs up and in turn negatively affect small business contractors, so this new vehicle is expected to be beneficial for small businesses and improve government management on spend, contract, and subcontract performance.

Based on recent market research and historical spend, the demand for complex services in specific categories (which we’ll cover below) will increase, and GSA wants a contract vehicle to meet these needs. Services MAC is also designed to complement the Multiple Award Schedule (MAS) streamlined and effective practices but will not duplicate MAS.

What Do We Know About GSA’s Services MAC So Far?

Services MAC is intended to create a more efficient buying experience that will allow all contract pricing types (fixed price, time and material, cost reimbursement, and hybrid), as well as non-commercial services or a mix of commercial and non-commercial services. Once the initial round of contractors are awarded, GSA wants to create an opportunity for new industry partners to routinely onboard. This means all caps on the numbers of awards will be eliminated. 

While originally intending to only award under one contract, after further market research, GSA intends to solicit and award separate IDIQ contracts under the following categories:

  • 8(a) Small Business
  • HUBZone Small Business
  • Service-Disabled Veteran-Owned Small Business (SDVOSB)
  • Total Small Business
  • Women-Owned Small Business
  • Unrestricted 

Scope of the Services MAC

The contract vehicle’s scope is organized by Domains which make it easier for government agencies, because when they are ready to issue a task order solicitation, they will select the Domain that meets their needs and the corresponding NAICS Code. The chosen NAICS will then determine the size standard

Domains refer to the functional groupings of related services spanning multiple North American Industry Classification (NAICS) Codes. GSA will add new Domains based off data information assessments and needs, but the currently identified Domains are listed below.

Multiple Domains will be assigned to this contract vehicle and each Domain is limited to the NAICS Codes specifically outlined. Here are the Domains that have qualification matrices so far:

  • Management and Advisory - Small Business
  • Management and Advisory - Unrestricted
  • Technical and Engineering - Small Business
  • Technical and Engineering - Unrestricted
  • Enterprise Solutions - Unrestricted 

The remaining Domains have been mentioned, but no further information has been released yet:

  • Research and Development
  • Intelligence Services
  • Enterprise Solutions
  • Environmental Services
  • Facilities
  • Logistics

Detailed information about each Domain and the corresponding NAICS Codes can be found in Section C Description/Specifications/Statement of Work.

When Will the Request for Proposal (RFP) Come Out?

GSA has slowly been releasing draft sections, but the full draft RFP is expected to come out in early Fiscal Year 2023. As a reminder, the 2023 government Fiscal Year will begin on October 1, 2022. The final RFP will follow in an unspecified amount of time. The release of the final RFP will be dependent on feedback from the draft RFP, so you’ll have an opportunity to submit responses soon if this contract vehicle interests you.

Keeping an Eye On Future Contracting Opportunities

We know it can be simultaneously exciting and overwhelming to sift through and monitor all the contracting opportunities available to you as a GSA contractor, especially new contract vehicles. While there is no set timeline for GSA’s Services MAC, we are keeping a close eye on the future draft RFP, and you can follow along for more information on our blog and our monthly newsletter. You can also check out the GSA Interact OASIS+ page for routine updates. 

In the meantime, you can focus on making sure your GSA contract is updated, and you are implementing good marketing practices. If you want to search for active opportunities, check out our blog on “How to Find Government Contract Opportunities on” Make sure your GSA Schedule is managed properly from sales reporting to modifications, in our blog, “How to Maintain Your GSA Schedule Contract: An Essential Checklist.”

Of course, our consultants are here to help if you want to pursue Services MAC or other contract vehicles, or if you need help managing your GSA Schedule.

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About Stephanie Hagan

Stephanie Hagan is the Content Writer and Digital Editor for Winvale where she helps the marketing department continue to develop and distribute GSA and government contracting content. Stephanie grew up in Sarasota, Florida, and earned her Bachelor's of Arts in Journalism and Rhetoric/Communications from the University of Richmond.