GSA Schedule holders have been profoundly affected by the transition to one, unified Multiple Award Schedule (MAS), which has occurred in three phases. 

Phase One:

On October 1, 2019, GSA released the single, unified GSA MAS Schedule solicitation, consolidating 24 GSA schedules into one, and reducing the number of Special Item Numbers (SINs) from 900 to 300. 

Phase Two:

January 31, 2020, GSA released a mass modification for current schedule holders to transfer over into the MAS.

Phase Three:

In July 2020, GSA will contact vendors with multiple GSA Schedules to determine their best option for consolidation into one schedule. 

The transition has raised many practical questions, and to address them, GSA issued final MAS Modification guidelines on March 6, 2020 on the GSA Interact forum and the Vendor Support Center (VSC) website.

The MAS guidelines were the result of GSA integrating vendor comments and concerns gathered through a Request for Information (RFI) issued on January 3, 2020.  The guidance addresses the following types of modification:

  • Administrative (contractor information corrections)
  • Addition of products or labor categories
  • Deletion of products or labor categories
  • Pricing (price increases and reductions)
  • Technical modifications (part numbers, product/labor category descriptions)

The MAS Modification Guide shares information and tips for preparing/submitting the following:

  • Administrative Modifications: Unilateral modifications submitted by contractors to keep company information up to date such as: address, email address, Point-of-Contact (POC), Authorized Negotiator, Contract Administrator, or Industrial Funding Fee (IFF) POC.
  • Addition Modifications: Adds products, services, or SINs to a company’s Schedule offerings.
  • Terms and Conditions
  • Novations and Name Change
  • Contract Cancellations.

The guidance also includes new price proposal templates for modifications.  You can download some of templates provided below:



We at Coley stay ahead of the many changes taking place at GSA in order to serve our clients better in the use and management of their GSA Schedule contracts.  While these changes can be confusing, our GSA Schedule experts can demystify the many changes taking place through the MAS consolidation and help you navigate. If you have any questions, reach out to Coley via email at

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