UC Davis students will be enrolled, in batches of accounts at a time, during February 2021. They will receive emails before and after they're enrolled, with information on what to do next.
Once enrolled, they will need Duo to access the Advising Appointment System, MyBill, and other campus services protected by the Central Authentication Service (CAS). Some apps, including UC Davis Canvas and DavisMail, won't require Duo for now.
For more information, see this article in TechNews. Also: