A National Passport is an official document issued by a country's government that certifies a person's identity and nationality. It allows individuals to travel internationally and serves as proof of citizenship. Passports typically contain personal information, including the holder's name, date of birth, and photograph, along with a unique passport number. In addition to facilitating travel, a National Passport can also provide access to consular services while abroad. This includes assistance in emergencies, such as lost passports or legal issues. Each country has its own passport application process, requirements, and validity periods.