You have to have an appointment. I was there on March 12th and the door was locked. A man came to the door with a clipboard and asked my name and confirmed that I had an appointment.
I think both. But I recommend scheduling for an appointment if you need to get a license. That's what I had to do with this: https://skiptheline.ncdot.gov/Webapp/_/_/_/en/WizardAppt/Welcome
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