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Mass Modifications

What Are Mass Modifications?

Mass Modifications are issued directly to GSA Schedule contractors via the mass mod system. Mass Mods should be signed within 90 days of receipt and each mass modification will outline the significant changes impacting the solicitation and your subsequent contract. Significant changes may vary depending on the offerings on your contract. Lastly, accepting all outstanding Mass Mods is a prerequisite for submitting a modification request. GSA may not accept a modification until all outstanding Mass Mods have been acted upon.

The Mass Modification website can be found here: