Execlusive Summary Ethnic people, indigenous peoples, stateless people and transnational people Thai society has multiple identities with more than 56 ethnic groups, some of which have been living in Thailand for many generations. Thai governments have tried to promote life quality of these groups of population by enacting and developing laws and policies that are consistent with each other to solve the problem of statelessness in 4 main parts that are (1) resolving statelessness problem caused by the Revolutionary Proclamation no. 337 by using Article 23 of the Nationality Act, B.E. 2509 (1966) amended (4th Issue) in B.E. 2551 (2008) to solve the stateless people’s problem caused by abolition of the rule for nationalization based on border demarcation, (2) giving Thai nationality to persons who are descendants of persons who had Thai nationality but did not have Thai nationality or lost Thai nationality as a result of law caused by changes in the country’s boundaries (state sucession), such as Thai people in exile, (3) eliminating bottle-neck problems for consideration to grant Thai nationality case by case, and (4) solving the problem of nationality and personal status of pupils, students and stateless people in Thailand who are children of minority people and ethnic people born in the Kingdom of Thailand, including children and persons studying in education institutes or having already completed their education to receive Thai nationality in general by issuing the Citizen Registration Act, B.E. 2534 (1991) amended (2nd Issue) to provide rules for birth registration of all children born in the Kingdom of Thailand and the Citizen Registration Act (2nd Issue), B.E. 2551 (2008) clearly setting rules for making personal records of persons living in Thailand. Moreover, the State took actions to create concrete results from various policies and guidelines, such as a project to give stateless persons, particularly children and youth both in and outside of the education system, Thai nationality correctly, the case of the Interior Ministry issuing an official letter allowing already registered stateless persons to be able to travel out of their district of residence but still be in the territory of that province. Monitoring and checking complaints and monitoring progress in the promotion and protection of human rights according to major human rights instrument, including the UN Declaration on the Rights of Indigenous Peoples (UNDRIP), the NHRCT found a number of restrictions in some laws and state policies related to Thai state’s consideration of nationality and right to citizenship that caused problem concerning right of this group of people that were : (1) being stateless persons because the persons did not have documents to prove their status, lack of clarity or hindrance against adding names in the citizen registration and request for personal identity card, (2) being rootless persons because of being orphaned or abandoned, (3) personal records in the citizen registration being removed or suspended, (4) lack of clarity in laws, policies or practices related to naturalization (to become Thai citizen) for certain cases of stateless persons (such as in case of persons who make contributions for the country), and (5) lack of clear definition of the term ‘indigenous peoples’ which คณะกรรมการสิทธิมนุษยชนแห่งชาติ | 41 Summary to organize education for persons with special needs and promote persons with disability’s access to education at all levels in all systems. Universal design was advocated, so that everyone in society could benefit together. However, restrictions were still found in policy advocacy and guidelines to promote life quality of persons with disability in all areas, especially in rural or remote areas. Pro-active actions should be taken to make the society aware of and understand rights of persons with disability more.