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Subject: Extended Maintenance Window for Modernized e-File (MeF) |
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The MeF Sunday maintenance build window is being extended on Sunday, September 28, 2014. The system will be unavailable from 1:00 a.m. until 9:00 a.m., Eastern. The build will deploy critical system updates. This extended window impacts the MeF Production and ATS Environments. Thank you in advance for refraining from accessing the MeF Production and ATS Systems during this period. |



