The External User Acceptance Test (Ext-UAT) for ASSIST will be unavailable due to maintenance and upgrades at Grants.gov. Because Grants.gov’s UAT environment works with ASSIST UAT, any transactions between the systems will not be available while Grants.gov completes its maintenance and upgrades to its UAT environment.
Starting at 12:01 a.m. ET on Tuesday, February 21, 2017 (after midnight on Monday), the environments will go offline as Grants.gov updates its UAT environment from HTTP to HTTPS per federal mandate (OMB M-15-13, dated June 8, 2015).
Note: The Grants.gov upgrades will not affect the production environments.