Mass Modifications (Mass Mods) are government-initiated modifications that occur when a uniform change occurs under the MAS program. A prime example is a refresh to the terms and conditions of your contract.
When a Mass Mod is issued, the contract’s authorized negotiator is notified via email with instructions for how to access, read, and accept or decline the Mass Mod.
Upon acceptance, a confirmation email containing a printable SF30 is sent to you via email. The signed SF30 becomes part of your contract file, and should be retained. A copy is also sent to your PCO and ACO. Unlike modifications that you initiate, which are administered by your PCO, government-initiated modifications are administered by your ACO.
Click here for GSA's Mass Mod system.
If you have problems accessing your Mass Mod, please contact the eOffer/eMod Helpdesk at eoffer@gsa.gov or (866) 472-9114.
If you have any questions regarding the clauses in the Mass Mod, please contact your PCO.