- ?Lv 71 decade agoFavorite Answer
Guam is a territory of the United States.
Therefore, the entry of Guam will automatically reset the 180-day for residency, as you are returning resident (even you residency is not in Guam).
You don't have to worry about it.
(Of course, in and out from Guam will constitute a separate trip to you.)
- 1 decade ago