Naturalization is the legal act or process by which a non-citizen of a country may acquire citizenship or nationality of that country. It may be done automatically by a statute, i.e., without any effort on the part of the individual, or it may involve an application or a motion and approval by legal authorities. The rules of naturalization vary from country to country but typically include a promise to obey and uphold that country's laws and taking and subscribing to an oath of allegiance, and may specify other requirements such as a minimum legal residency and adequate knowledge of the national dominant language or culture. To counter multiple citizenship, some countries require that applicants for naturalization renounce any other citizenship that they currently hold, but whether this renunciation actually causes loss of original citizenship, as seen by the host country and by the original country, will depend on the laws of the countries involved.
In international law, a stateless person is someone who is "not considered as a national by any state under the operation of its law". Some stateless people are also refugees. However, not all refugees are stateless, and many people who are stateless have never crossed an international border. On November 12, 2018, the United Nations High Commissioner for Refugees stated there are about 12 million stateless people in the world.
Dutch nationality law details the conditions by which a person holds Dutch nationality. The primary law governing these requirements is the Dutch Nationality Act, which came into force on 1 January 1985. Regulations apply to the entire Kingdom of the Netherlands, which includes the country of the Netherlands itself, Aruba, Curaçao, and Sint Maarten.
Norwegian nationality law is based on the principle of jus sanguinis. In general, Norwegian citizenship is conferred by birth to a Norwegian parent, or by naturalisation in Norway.
The citizenship law of the Czech Republic is based on the principles of jus sanguinis or "right by blood". In other words, descent from a Czech parent is the primary method of acquiring Czech citizenship. Birth on Czech territory without a Czech parent is in itself insufficient for the conferral of Czech citizenship. Every Czech citizen is also a citizen of the European Union. The law came into effect on 1 January 1993, the date of the dissolution of Czechoslovakia, and has been amended in 1993, 1995, 1996, 1999, 2002, 2003, and 2005. Since 1 January 2014, multiple citizenship under Czech law is allowed.
Slovenian nationality law is based primarily on the principles of jus sanguinis, in that descent from a Slovenian parent is the primary basis for acquisition of Slovenian citizenship. However, although children born to foreign parents in Slovenia do not acquire Slovenian citizenship on the basis of birthplace, place of birth is relevant for determining whether the child of Slovenian parents acquires citizenship.
Hungarian nationality law is based on the principles of jus sanguinis. Hungarian citizenship can be acquired by descent from a Hungarian parent, or by naturalisation. A person born in Hungary to foreign parents does not generally acquire Hungarian citizenship. A Hungarian citizen is also a citizen of the European Union.
Japanese Nationality Law details the conditions by which a person holds nationality of Japan. The primary law governing nationality regulations is the 1950 Nationality Act.
Belarusian nationality law regulates the manner in which one acquires, or is eligible to acquire, Belarusian nationality, citizenship. Belarusian citizenship is membership in the political community of the Republic of Belarus.
Nationality law of Greece is based on the principle of jus sanguinis. Greek citizenship may be acquired by descent or through naturalization. Greek law permits dual citizenship. A Greek national is a citizen of the European Union, and therefore entitled to the same rights as other EU citizens.
Turkish nationality law is based primarily on the principle of jus sanguinis. Children who are born to a Turkish mother or a Turkish father are Turkish citizens from birth. The intention to renounce Turkish citizenship is submitted in Turkey by a petition to the highest administrative official in the concerned person's place of residence, and when overseas to the Turkish consulate. Documents processed by these authorities are forwarded to the Ministry of Interior (Turkey) for appropriate action.
Estonian citizenship law details the conditions by which a person is a citizen of Estonia. The primary law currently governing these requirements is the Citizenship Act, which came into force on 1 April 1995.
Luxembourg nationality law is ruled by the Constitution of Luxembourg. The Grand Duchy of Luxembourg is a member state of the European Union and, therefore, its citizens are also EU citizens.
The Croatian nationality law dates back from June 26, 1991, with amendments on May 8, 1992, October 28, 2011, and January 1, 2020, and an interpretation of the Constitutional Court in 1993. It is based upon the Constitution of Croatia. It is mainly based on jus sanguinis.
Citizenship of Montenegro is the citizenship of Montenegro. It is regulated by a citizenship law, ratified by Parliament in 2008 and published by the Official Journal of Montenegro. It is mainly based on jus sanguinis. There are also provisions for citizenship-by-investment, though the government has suspended the relevant guidelines in the face of European Union concern.
Multiple/dual citizenship is a person's legal status in which the person is at the one time recognized by more than one country under its nationality and citizenship law as a national or citizen of that country. There is no international convention which determines the nationality or citizenship status of a person, which is consequently determined exclusively under national laws, that often conflict with each other, thus allowing for multiple citizenship situations to arise.
Thai nationality law includes principles of both jus sanguinis and jus soli. Thailand's first Nationality Act was passed in 1913. The most recent law dates to 2008.
Albanian nationality law is based on a mixture of the principles of Jus sanguinis and Jus soli. In other words, both place of birth and Albanian parentage are relevant for determining whether a person is an Albanian citizen. It is regulated by the "Law on Albanian Citizenship". In some circumstances citizenship is granted to children born in Albania to non-Albanian parents. This is not the case where parents are temporary or short-term visitors. As suggested by the United Nations and Council of Europe, all efforts are made in order to avoid statelessness.
Jordanian nationality law is the law governing the acquisition, transmission and loss of Jordanian citizenship. Jordanian citizenship is the status of being a citizen of the Hashemite Kingdom of Jordan and it can be obtained by birth, marriage or naturalization.
San Marino nationality law is contained in the provisions of the Law on Citizenship (2000) which was amended in 2004 and 2016 and in the relevant provisions of the San Marino Constitution. A person may be a citizen of San Marino through birth, descent or through naturalisation.
