The DMV Mobile Unit is in Waterville on the first Monday and second and fourth Friday of every month from 9:00 AM to 1:00 PM and 2:00 PM to 3:00 PM. The unit is located at 93 Main Street (The Center building) upstairs on the third floor in Council Chambers. Further questions about the Mobile DMV Unit should be directed to the DMV/Secretary of State’s Office, at 624-9000.