I moved from MA to CT 10 or so years ago. What I didn't know (until I went to the DMV) was that you have to transfer your license first, and that could only be done (at the time) in Wethersfield. Getting a CT license (at the time) took 5 hours. I literally sat around in Wethersfield all damn day. And then, I was able to transfer my car registration the following weekend. Bring a lunch.