| United States | To analyze the linkage among insurance coverage, activity codes, and workforce qualifications | CMS (2014); McBain et al. (2021) |
| Canada (Ontario) | To analyze the linkage between statutory professional regulation and public financing | Psychology and Applied behavior Analysis Act, 2021; Government of Ontario (2021, 2026); CPBAO (2024) |
| Australia | To analyze the combination of individual budgets, provider registration, and person-centered support | National Disability Insurance Scheme Act 2013; NDIS Quality and Safeguards Commission (2019) |
| Norway | To analyze professional-competence management grounded in public health/education systems and national licensure/higher education | Norwegian Ministry of Health and Care Services (2020); Eikeseth et al. (2002, 2007); Roll-Pettersson et al. (2020) |
| Korea | Central case for analyzing institutional gaps and linkage limits of the ABA support system relative to international cases | Act on Welfare of Children with Disabilities, Art. 21; Act on Guarantee of Rights and Support for Persons with Developmental Disabilities, Art. 24; Ministry of Health and Welfare (2026a, 2026b) |