AP Style holds that someone who leaves a country emigrates from it. Someone who comes into a country is someone who immigrates. This idea is also applied to the words emigrant and immigrant. For example,
- My grandparents immigrated to the United States.
- My grandparents emigrated from Norway.
In these sentences, my grandparents are immigrants here in the United States, but back in Norway, they are emigrants.
For a more full discussion on the differences between emigrate and immigrate, please visit our full post on the subject.