It won't automatically do anything.
In the US, PE rules and laws are state-by-state. The rules will typically be online. So figure out what state you're interested in and look up the rules to see.
Generally, if you are registered in one state and want to register in another, you have to fill out an application, furnish references, transcripts, etc. But you don't have to take any additional tests, provided you took the applicable tests in the first state. Some states have special requirements as well (seismic for California civil/ structural engineers, for example). It might vary some when coming from out of the US, but expect that you would have to do at least that much. The whole process normally takes a couple of months. You should be able to do this all by mail/phone/email, unless you need to take tests that aren't available at home.