I think Montana is the only state not "at-will"
Puerto Rico is technically not a state, but as part of the US, and counted in the statistics of the (federal) Department of Labor, I would also count it as a _not "at-will"_ state.
alt Hacker News
Puerto Rico is technically not a state, but as part of the US, and counted in the statistics of the (federal) Department of Labor, I would also count it as a _not "at-will"_ state.