H1B去Puerto Rico和回美不要签证

We had a trip to Puerto Rico this month and the flight was just a domestic flight. We didn't even bring our passports.

However, we did read from some travel guide book that it is advised for foreigners to carry their passport and valid visa/I-94 with them.

所有跟帖： 

• 回复：H1B去Puerto Rico和回美不要签证 -cd571- ♀ (84 bytes) () 12/22/2009 postreply 11:34:37

• Puerto Rico is a commonwealth of US, you did not exit US when yo -Ycart- ♀ (0 bytes) () 12/22/2009 postreply 13:33:33

• 回复：Puerto Rico is a commonwealth of US, you did not exit US when -Ycart- ♀ (141 bytes) () 12/22/2009 postreply 13:34:45