A Mongolian passport is a document which authorises and facilitates travel and other activities in Mongolia

Mongolia

Mongolia is a landlocked country in East and Central Asia. It is bordered by Russia to the north and China to the south, east and west. Although Mongolia does not share a border with Kazakhstan, its western-most point is only from Kazakhstan's eastern tip. Ulan Bator, the capital and largest...

 or by Mongols.

In medieval times, the Mongol Empire

Mongol Empire

The Mongol Empire , initially named as Greater Mongol State was a great empire during the 13th and 14th centuries...

 issued passports (gerege)

Paiza

Paiza or Gerege is a tablet of authority for the Mongol officials and envoys...

 to officials and emissaries. This authorised them to claim facilities for travel throughout the empire using the yam (Örtöö)

Yam (route)

Yam is a supply point route messenger system employed and extensively used and expanded by Genghis Khan and used by subsequent Great Khans and Khans.Relay stations were used to give food, shelter and spare horses for Mongol armies messengers...

 system of relay stations which provided food and remounts.

Nowadays, all Mongolian citizens are required to register and apply for a civil passport (now called a civil ID card) within 30 days of reaching the age of 16. This is a form of identity document

Identity document

An identity document is any document which may be used to verify aspects of a person's personal identity. If issued in the form of a small, mostly standard-sized card, it is usually called an identity card...

 for these often nomadic people.

Foreign travel passports are issued to citizens of Mongolia

Mongolia

Mongolia is a landlocked country in East and Central Asia. It is bordered by Russia to the north and China to the south, east and west. Although Mongolia does not share a border with Kazakhstan, its western-most point is only from Kazakhstan's eastern tip. Ulan Bator, the capital and largest...

 for international travel. New Mongolian passports are issued by the Ministry of Foreign Affairs (MFA) in Ulaanbaatar

Ulaanbaatar

Ulan Bator or Ulaanbaatar is the capital and largest city of Mongolia. An independent municipality, the city is not part of any province, and its population as of 2008 is over one million....

or at Mongolian Embassies worldwide.