Honestly , if you have anything related to Drivers license and registration. You will be told theres 3to4 hours wait until you receive a number. Where as to Before Covid restrictions, you could get a number after waiting in line for maybe 45min to 1 hour. But with all these new Covid rules. You receive a number several hours after arriving. However, they do use a text messaging system with a link that allows you to monitor your position in line. You cannot wait inside the DMV. But you can leave as soon you receive your Number.
If you go to DMV need to be there early, since they give numbers at 7am after your number is given and time you don't necessarily need to wait there you may leave and come back according to the time they gave you.
Yes, the DMV is open for walk-in. But, if you want you can go to: dmv.ca.gov
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