# ESTR-IRB Unscheduled Maintenance Outage - Dec 23 6:00pm ET - Dec 24 9:00am ET December 23, 2020 ESTR-IRB will be unavailable during unscheduled maintenance on Wednesday, December 23 from 6:00pm ET until 9:00am ET on Thursday, December 24 (note that this is an extension of a prior outage notification). Please contact with any questions. Share on:- [ Facebook ](#) - [ Twitter ](#) - [ Linkedin ](#)