There will be about 100 people headed to the Vermont campus on July 20 when the first wave of volunteers return to the office.
Combined with the essential workers who have been in the building since March, a total of about 175 could be on campus on any given day.
Some of the details are still being worked out and the number is certain to fluctuate.
The Facilities team and the Business Continuity team are working to ensure that adequate social distancing is maintained among the people who return.
This first phase will continue to be voluntary for now and no timetable has been set for subsequent phases.
There are still no plans for a return to the Addison campus because Covid-19 caseloads continue to climb there.