Introduction
This Regional Overview synthesises findings from five sub-regional SEAP reports to map how legal identity, digital identity and data-governance frameworks are evolving across East Asia, South Asia, Southeast Asia, Central Asia and the Pacific.[1] It brings together country-level analysis on civil registration, national ID systems and emerging digital ID infrastructures to show how these layers interact in practice, and how they shape access to rights and services. This section provides a cross-cutting view of the wider region, highlighting shared patterns and divergences that might not be visible when looking at each sub-region in isolation.
As with the country factsheets and sub-regional overviews, the regional overview is organized thematically, beginning with legal identity systems, then turning to the rollout of digital identity, and the underlying legal and data-protection frameworks. Then, it proceeds to examine states’ international commitments and the implications of these systems for citizenship and nationality rights. Within each theme, this overview intends to draw out both common trends and practices that illustrate how different institutional choices can widen or narrow exclusion. Throughout, the text signposts readers to the five sub-regional SEAP reports, which provide more detailed country-by-country information and case studies.
Taken together, the aim of the regional overview is to equip readers with an accessible entry point of identity systems that span very different legal traditions, levels of digitalisation and political contexts and how they interact with the question of statelessness.
Legal Identity
Across four out of the five sub-regions (East Asia, South Asia, Southeast Asia, and Central Asia), national ID cards, resident identity cards, or citizen ID cards, are used as the country’s primary legal identity document instead of birth certificates. The Pacific stands out in contrast to other sub-regions because nine out of the 17 countries rely on birth certificates instead of national ID cards (Federated States of Micronesia, Fiji, Kiribati, Marshall Islands, Nauru, Palau, Samoa, Solomon Islands, Tuvalu). In countries across the Pacific where birth certificates are the primary legal document, it allows access to other foundational identity documents and access to services such as passports, voting, enrollment in schools, and health insurance. In the nine countries across the Pacific where birth certificates are their primary legal identity, birth registration depends heavily on the strength and accessibility of the State’s civil registration systems; geographic distance between islands and their registries; and the level of public awareness about birth registration.[2]
Most South Asian countries use national identity cards as the primary proof of legal identity. Nepal is the exception, where citizenship certificates serve as the official document instead.[3] Birth registration in the sub-region acts as an essential foundational document that is required to access other primary legal identity documents and its corresponding digital ID systems (should they exist). In the case of Nepal, alternative documents besides birth certificates can be provided to acquire citizenship certificates, showing alternative options for those who may not have access to birth registration.[4]
Legal identity in East Asia is characterized by the use of family or household registration records, which serve as prerequisite documents for applying for national ID cards in all seven countries of the sub-region.[5] One common feature across China, Japan, Taiwan, and South Korea is the linkage between birth registration and the household registration system, which serve as the basis for establishing permanent residency status and gaining access to public services from education to healthcare.[6]
Legal identity in Southeast Asia is characterized by civil registration–based systems where birth registration serves as the foundation for obtaining national identity cards. These cards are the primary legal identity documents across all eleven countries in the sub-region. While birth registration establishes legal identity and enables entry into population registries, national ID cards are mandatory for citizens and widely used to access services. In some countries it also serves as proof of citizenship. However, most Southeast Asian countries maintain a legal distinction between identity and citizenship.
In Central Asia, legal identity is characterized by a layered system in which birth registration serves as a universal and mandatory foundational document, but national ID cards or internal passports function as the primary proof of legal identity for adults. While birth registration establishes initial legal identity, individuals must subsequently obtain national ID documents to access services, reflecting a system where legal identity is built progressively and does not in itself constitute proof of citizenship.
India, Australia, and New Zealand stand out as countries that do not have a single primary legal identity, and multiple forms of legal identity are accepted.[7] For example, in India, there is no officially recognized single legal identity document, so individuals rely on a combination of documents such as birth registration records, Aadhaar numbers, voter ID cards, passports, and ration cards to establish identity in different contexts.[8] Similarly, in Australia, legal identity is typically established through a range of documents rather than a single foundational ID, including passports, driver’s licenses, birth certificates, and citizenship certificates, depending on the service or transaction.[9] In New Zealand, multiple documents are explicitly recognized as proof of legal identity, including passports (New Zealand or foreign), driver’s licenses, firearms licences, birth certificates, citizenship certificates, refugee travel documents, and certificates of identity, with no single document serving as the sole authoritative ID.[10]
See Table 1: Primary legal identity document across Asia Pacific
Across South Asia, East Asia, and the Pacific, primary legal identity systems do not uniformly constitute or confer citizenship, although they are often closely tied to it in practice. In many countries, foundational identity documents, such as household registration systems in East Asia or national ID systems in South Asia, are used to access services and legal recognition, which can make them functionally equivalent to proof of citizenship even when they are not legally defined as such. In the Pacific, the relationship is more varied: while birth registration is widespread, only three countries (Fiji, Palau and Samoa) treat birth certificates as direct proof of citizenship, whereas in most cases, a birth certificate merely records a birth event and must be supplemented by additional documentation to establish nationality. Overall, while legal identity systems do not automatically confer citizenship across the five sub-regions, they play a critical role in structuring access to rights and services.
Access to legal identity for non-citizens varies significantly across all five sub-regions, particularly between birth registration systems and national ID frameworks. Birth registration is generally more accessible. In many countries it is not formally restricted by citizenship status, meaning that children of non-citizens can often be registered at birth. However, birth registration does not necessarily translate into legal status, nationality, or access to rights beyond the recording of a birth event.
By contrast, access to national ID cards and their corresponding digital identity systems depends on citizenship. In East Asia, Southeast Asia, and parts of South Asia, national ID systems are closely tied to citizenship or legal residency status. This limits access for undocumented migrants and stateless populations.[11] In the Pacific, countries that rely on national ID cards restrict them to citizens or permanent residents, except in Tonga, where ID cards are mandatory regardless of citizenship status.
While some countries provide alternative forms of identification for non-citizens, these are typically distinct from citizen ID systems and confer more limited rights and recognition. Examples include residence cards in Japan, foreign resident registration systems in South Korea, ImmiCards in Australia, certificates of identity or refugee travel documents in New Zealand, and an Alien Residence Certificate in Taiwan.[12] In India, where there is no single primary legal identity document, systems such as Aadhaar are accessible to residents regardless of citizenship status, but they function primarily as proof of identity and not proof of nationality.[13]