I'm E-9; can I change companies? How many times?

It's not possible to move at will, but that doesn't mean it's impossible. Up to 3 times during the initial employment period, and up to 2 times during the reemployment (extension) period. If it is recognized as a statutory reason not the worker's responsibility, such as suspension or closure, it is not counted in this count. Even those who have used all three times can transfer in that case. However, the places you can move to are limited by industry and region, and there are exceptions to regional restrictions, such as moving from the metropolitan area to non-metropolitan areas. To find out whether your reasons are recognized and where you can move, inform them of your entry date and progress by contacting the employment center or 1350.