The University of Michigan and the TADA 2021 conference organizers require adherence to the following COVID-19 health and safety guidelines by all in-person conference attendees:

Self-screening with ResponsiBLUE (for guests: https://guest.responsiblue.umich.edu/ for UMICH students, faculty, and staff https://responsiblue.umich.edu/sign-in)
Wearing a face mask in campus buildings and on campus transit
Vaccination against COVID-19
Practicing physical distancing where possible on campus
In addition, the university may require additional precautions between now and the date of the conference