What are the requirements for proof of citizenship when traveling outside of the USA?
Proof of citizenship is required for all US citizens when traveling outside of the continental US. Married women using a passport in their maiden name must bring along a copy of their marriage certificate or risk being denied boarding. Be sure to carry a valid US Passport with you when you check-in at the airport. If you are not a US citizen, contact the consulate of the country to which you are traveling for current requirements.