An identity document is any document that may be used to prove a person's identity. If issued in a small, standard credit card size form, it is usually called an identity card, or passport card. Some countries issue formal identity documents, as national identification cards that may be compulsory or non-compulsory, while others may require identity verification using regional identification or informal documents. When the identity document incorporates a person's photograph, it may be called photo ID.
The Czech national identity card is the identity document used in the Czech Republic, in addition to the Czech passport. It is issued to all citizens, and every person above 15 years of age permanently living in the Czech Republic is required by law to hold a valid identity card.
A travel document is an identity document issued by a government or international entity pursuant to international agreements to enable individuals to clear border control measures. Travel documents usually assure other governments that the bearer may return to the issuing country, and are often issued in booklet form to allow other governments to place visas as well as entry and exit stamps into them.
Bilhete de Identidade, commonly abbreviated as BI, was the national identity card of Portugal. Established in 1919, the BI is gradually being replaced by the Cartão de Cidadão since 2008. BI's are valid for five years from date of issue for people under the age of 25, and then for ten years, and can be renewed 6 months before expiry. It is mandatory for all citizens above the age of 10, and available optionally for children.
The United States passport card is an optional national identity card and a travel document issued by the U.S. federal government in the size of a credit card. Like a U.S. passport book, the passport card is only issued to U.S. citizens and U.S. nationals exclusively by the U.S. Department of State. The passport card allows its holders to travel by domestic air flights within the U.S., and to travel by land and sea within North America. However, the passport card cannot be used for international air travel. US passport cards are used to verify identity and US citizenship. The requirements to attain the passport card are identical to the passport book and compliant to the standards for identity documents set by the REAL ID Act.
A Norwegian passport is the passport issued to nationals of Norway for the purpose of international travel. Beside serving as proof of Norwegian citizenship, they facilitate the process of securing assistance from Norwegian consular officials abroad.
A German passport is an identity document issued to nationals of Germany for the purpose of international travel. A German passport is, besides the German ID card and the German Emergency Travel Document, the only other officially recognised document that German authorities will routinely accept as proof of identity from German citizens. Besides serving as proof of identity and presumption of German nationality, they facilitate the process of securing assistance from German consular officials abroad. German passports are valid for ten years or six years and share the standardised layout and burgundy red design with other EU passports. Every German citizen is also a citizen of the European Union. The passport, along with the national identity card, allows for free rights of movement and residence in any of the states of the European Union, European Economic Area and Switzerland.
The Swedish national identity card is a non-compulsory biometric identity document issued in Sweden. It is one of two official identity documents issued by the Swedish Police, the other being the Swedish passport. It is only issued to Swedish citizens, and indicates the citizenship.
The Estonian identity card is a mandatory identity document for citizens of Estonia. In addition to regular identification of a person, an ID-card can also be used for establishing one's identity in electronic environment and for giving one's digital signature. Within Europe as well as French overseas territories, Georgia and Tunisia the Estonian ID-card can be used by the citizens of Estonia as a travel document.
The Croatian identity card is an identity document issued in Croatia. Any Croatian citizen who is resident in Croatia can obtain an ID card and it is compulsory for all citizens over the age of 18. This document is issued by the police on behalf of the Ministry of the Interior.
Serbian identity card is the national identification card used in Serbia. The document is issued by the Serbian Police on behalf of the Ministry of Internal Affairs and is the main form of identification on the territory of the Republic of Serbia. Although it can be issued to citizens above 10 years of age, all Serbian citizens over the age of 16 are legally obliged to carry their identity cards with them at all times and are subject to fines should they not. The identity card is a primary photo ID, Serbian passport and drivers license are used as valid photo IDs for various purposes.
The Albanian identity card (Letërnjoftim) is a national identity card issued by Albanian authorities to Albanian citizens. It is proof of identity, citizenship and residence. The current version is in ID1 format and biometric. The ID card is compulsory for citizens over 16 years of age, costs 1,500 lekë and is valid for 10 years.
Hungarian identity cards are not compulsory for Hungarian citizens, although they may be obtained by anyone after birth. However, every citizen from 14 years of age must have at least one of the three identity documents: national identity card; passport, under the age of 17 years; or a photo-card driving licence for anyone over 17 years old. Citizens can travel anywhere in Europe as well as to Georgia, French overseas territories, Montserrat, Turkey and organized tours to Tunisia using only this identity card.
The Bulgarian identity card is a compulsory identity document issued in Bulgaria. The document is issued by the police on behalf of the Ministry of Interior and is the main form of identification on the territory of the Republic of Bulgaria. All Bulgarians are obliged by law to carry their identity cards with them at all times and are subject to fines should they not.
The Dutch identity card is an official non-compulsory identity document issued to Dutch nationals in the European part of the Netherlands and certain diplomatic missions. It has similar dimensions and structure as those of a regular bank card.
The Finnish identity card is one of two official identity documents in Finland, the other being the Finnish passport. Any citizen or resident can get an identification card. Finnish citizens will get indication of citizenship on the card. It is available as an electronic ID card, which enables logging into certain services on the Internet, local computers or adding digital signatures into LibreOffice ODF documents or creating DigiDoc formatted containers that also allows encryption during content transfer. ID card is applied at a police station and it is issued by the police.
The Portuguese identity card, is an identity document issued by the Government of Portugal to its citizens. The card replaces several previous documents, including the Bilhete de Identidade, Social Security card, National Health Service card, Taxpayer card and voter registration card, in one secure card. The Citizen Card was first issued in the Azores in mid-2006. However, as of 2017 BIs continued to be issued in some cases.
The Lebanese identity card is a compulsory Identity document issued to citizens of the Republic of Lebanon by the police on behalf of the Lebanese Ministry of Interior or in Lebanese embassies/consulates (abroad) free of charge. It is proof of identity, citizenship and residence of the Lebanese citizens.
National identity cards are identity documents issued to citizens of most European Union and European Economic Area (EEA) member states, with the exception of Denmark and Ireland. As a new common identity card model replaced the various formats in use from 2 August 2021, recently issued ID cards are harmonized across the EEA, while older ID cards are currently being phased out according to Regulation (EU) 2019/1157.
The Norwegian identity card, commonly referred to as the national identity card in Norway, is a non-compulsory biometric identity document issued since 30 November 2020. It is one of two official identity documents issued by the Norwegian Police Service, the other being the Norwegian passport. It is only issued to Norwegian citizens, and may indicate citizenship so that it can be used as a travel document facilitating freedom of movement within the European Free Trade Association and the European Economic Area. For travel within the Nordic countries no identity documentation is legally required for Nordic citizens due to the Nordic Passport Union.
Lithuania 
European Union 
United Kingdom (EU Settlement Scheme) [1] 
Georgia 
Montserrat (max. 14 days) 
Overseas France 
Tunisia (organized tours)