I received some 75 replies to my enquiry about getting a California Driver's licence when moving from BC. Some were extremely technical.
Some were funny.
When I had my California Driver's licence back in 1972 or so, they just gave me the licence when I handed in my Manitoba Licence. It has obviously changed since then.
I have included several replies but my favourite is the next one. It includes a lot of food for thought. And, of course, there is a lot of difference between moving to and working in Mendocino or Crescent City and moving to LA or San Francisco with a 30 mile commute.