Kertic nationality law
Kertic nationality law is the set of rules which governs the status of being a national and citizen within the country and its subdivisions. It is not a singular piece of legislation, moreso that it is a collection of related legislation and statutes which define the full scope of the system. These laws together determine eligibility of citizenship, responsibilities, and the conditions of losing such status. Kertosono has a two-tiered citizenship system, in which citizens are simultaneously citizens of Kertosono and their respective political entities. To become a citizen of Kertosono, one must be a valid citizen of one of the political entities which make up the country. The definitions of what constitutes a citizen of a political entity differs from entity to entity, however, most are very strict with the definition. All entities operate on a ius sanguinis basis.
Foreigners are eligible to become Kertic citizens given that they meet certain requirements. The law also describes how one could lose Kertic citizenship, which have harsher conditions than other nationality laws. Kertosono does not allow dual citizenship.
Acquisition of Kertic Citizenship
In order to prevent the status of "internal statelesness" in Kertosono, it is impossible to be a Kertic citizen without being a citizen of one of its entities beforehand. Losing that citizenship by any means automatically revokes Kertic citizenship. Since 2005, there has been national legislation regulating citizenship of very common cases, such as birth and acquisition of a different citizenship, and is therefore valid in all entities of Kertosono. All persons who have became or been given citizenship prior to the law are automatically citizens under the new law.
Below is a table for birth conditions.
| Parental status | Location of Birth | |
|---|---|---|
| Domestic | International | |
| Both Kertic | 
|
|
| Father Kertic |
|
|
| Unknown Parents |
|
- |
| Non Kertic |
|
- |
Only children whose parents are both Kertic are instantly Kertic citizens by means of their entity citizenship. Babies born to Kertic Fathers only acquire citizenship if they were born within the country, and plan on having the child remain as a citizen. Parents must decide on the baby's nationality as Kertosono does not allow dual citizenship for everyone, including babies. On a more internal level, it is a mix of ius soli and ius sanguinis. Babies are automatically granted the citizenship of the entity they are born in if the parents do not register the child in another entity. It is also possible to claim the parent's entities, although both parents must be citizens of the same entity as a requirement for marriage. Children born to unknown parents with no family are automatically given citizenship. Babies not automatically given citizenship are treated as foreigners, and must go through the same process of citizenship like any other foreigner.
It is also possible for foreigners to become citizens. This is mainly done through two ways, which are via naturalization, and via special request from the government. Although so, most citizens of a foreign background became such through naturalization. The 2005 law only describes the major factors needed for naturalization, such as years of residency, fluency, and integration. Entities are free to add any additional requirements. Requirements not shaded in green means that they are only required in some entities.
| Condition | Requirement |
|---|---|
| Length of residency | Minimum 10 years |
| Language proficiency | Minimum B2 |
| Integration | Signed approval |
| Minimal wealth | Varies from A$10,000 - 25,000 |
| Criminal record | No criminal record |
| Interview | - |
Applicants must submit their application to the responsible body within each entity. Unsuccessful applicants must wait another six months before attempting again.
Loss of citizenship
The loss of citizenship is also governed by the 2005 nationality law. To prevent statelesness, the requirements for a loss of citizenship are uniform throughout the country. Losing citizenship in Kertosono is arguably much easier to do than in other countries. As Kertosono does not allow dual citizenship, acquiring any other citizenship besides Kertic citizenship warrants the loss of instant Kertic citizenship. Participating in a foreign army or terrorist group also warrants the loss of Kertic citizenship. Not contacting Kertic missions for one year straight while living abroad is also grounds for loss of citizenship.
It is not possible for a household in Kertosono to have differing nationalities, and the nationality of the head of the family serves as a default. This law has several consequences, for instance, if the head of the family loses Kertic citizenship, their entire family would automatically lose citizenship as well. In Kertic traditional law, males are considered the default head of the family, and female heads of households only arise when there is no male alternative possible. Subsequently, Kertic women who marry foreigners instantly lose their Kertic citizenship.
Loss of citizenship is a serious issue, as possessions do not follow along with the person. A person is considered "dead" by the state once they lose their citizenship, and therefore all remaining assets under their name would be taken by the state and redistributed among family members according to Kertic inheritance law.