A passport is a specific type of official identity document used for international travel. A country's government issues the document to its citizens or in some cases, to noncitizen nationals.

Travelers will also be required to have a valid travel document, such as a passport, which cannot expire in less than three months nor can it be older than a decade, according to the official website.

What is a travel document number? Before you plan on traveling to any country, you need to have travel documents. These are what determine your eligibility to travel and enter a country.

To get expert advice on getting a passport and the debate between passport book vs. card, I spoke to one of Condé Nast Traveler ’s Top Travel Specialists: Rachel Braylovsky of New York-based ...

Travel document number is a set of digits that is found on your official travel documents needed for government records and to help the necessary authorities identify each individual who is traveling.