You must change plate in 30 days, change license in 60 days.
I just moved MD.
MVA of MD is really bad.
I had been waiting for 2 hours to change license this thursday afternoon.
I had been waiting for 3 hours to change template plate this friday afternoon.
I will go there again next week to get permante plate.
It is better to go there the early morning, 8:30AM. http://www.mva.state.md.us/DriverServ/APPLY/apply.htm