Since Guam is part of the Unites States Teritory then no, not necessarily unless needed by the airline that you are to use for the travel. However, if you are not a US citizen then you need a passport to enter together with your Visa unless stated otherwise by their law and ntrance requirement.
Hawai'i is a US state, therefore no passport is needed for US citizens to travel to or from Hawai'i. Hawaii is part of the United States. Therefore, if you are a Citizen or a Permanent Resident(Green Card holder) you won't be needing a passport to go there. DL will do.
Only a passport is needed.
traveling to Puerto Rico July 2009 passport needed American citizen
Alien? If he or she is Alien then no. But if he/she human then yes need passport.
Not if you are a U.S. citizen, but, I would get one anyway!
A passport of some kind is needed to travel into the United States if not a citizen.
A valid passport, and a valid visa.
An American citizen does not need a Visa to go to Romania unless they plan on staying there. They just need a passport.
i am a American citizen going to Toronto on 1 12 08 and returning on 1 13 08 do i need a passport
If you are a US Citizen, No passport needed. All Puerto Ricans are US Citizen.
None, today. Due to the new laws a passport is needed if you travel outside of the United States.
To travel between any countries you should always have a passport. Especially if you are not an Irish or British citizen, you should have a passport with you when travelling on Irish Ferries.