Do you need to notify any state offices if you are only planning to move to another state for a year?

I did not and it did not matter but I believe your drivers license must have your current address and that should be updated within much shorter time frame than a year but I looked at it as an extended vacation not a relocation. I also had a job for the year in the new state and rented a place which nobody seemed to expect any changing of documentation.

If you are only planning to move to another state for a year then don't need to notify any state office or something like that. Because you would be in the same country. But the driving license must be updated according to your current address otherwise you are in trouble. Don't need to go for changing of any documentation.