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Multi-Factor Authentication Replaces Digital Certification and PIN Requirements for Signing Mass Mods on Aug. 8, 2020


Attention contract holders! Updates to GSA’s IT infrastructure mean changes to the way you access our Mass Mod Portal.


Beginning Saturday, Aug. 8, 2020, the Mass Mod portal will move to a two-step, multi-factor authentication (MFA) process, eliminating the digital certification requirement. This change aligns with GSA’s overall IT modernization efforts to build and maintain a more modern and secure infrastructure for its IT systems. Please see this document (also attached to this Interact post) for instructions on how to register.


Important: You will need the MFA capability to sign the MAS Refresh #4 Mass Mod coming August 14, 2020, which implements Section 889 Part B of the FY19 National Defense Authorization Act (NDAA) by incorporating FAR clause 52.204-25.


Please note: The move to MFA only impacts the Mass Mod portal. It does not remove or impact the digital certification requirement for the eOffer/eMod application overall. You still must maintain an active digital certificate to keep your contract current through the eOffer/eMod system.


Also new: only authorized negotiators listed on the contract will be able to sign Mass Mods on behalf of a company. This means contractors must have the most current authorized negotiators listed on their contract in order to utilize the new MFA process. Contractors needing to update the authorized negotiator(s) on their contract must submit an administrative eMod.


This authorized negotiator information can be verified by contacting the IOA or ACO assigned to a contractor’s contract. Industry partners can locate their representative here.


If you have any questions related to the process or how to register, please reach out to the helpdesk at (866) 472-9114.


Thank you for your continued partnership.



MFA User Guide

Attachment TitleSizeType
PDF icon MFA User Guide (July 2020)1.43 MBPDF

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