In mostcases, those who travel the world are required to use a passport as a form of international identification and the identification is usually accepted at any port regardless of the language in which it is written. The interesting thing is that even though passports are accepted as a valid form of identification, there are times when people who are applying for special visas or permits within a country are required to have thier passports translated in order to be deemed as an official piece of identification. This process is usually carried out by a certified professional well versed in passport translation due to legal regulations.