​The United Republic of Tanzania actively participates in several regional governmental organizations that influence refugee affairs:​

1. African Union (AU): Tanzania is a member of the AU, which has established frameworks like the 1969 OAU Convention Governing the Specific Aspects of Refugee Problems in Africa. This convention expands the definition of refugees and emphasizes the importance of granting asylum and finding durable solutions.
2. East African Community (EAC): As a founding member of the EAC, Tanzania collaborates with neighboring countries to address refugee issues. The Treaty for the Establishment of the East African Community includes provisions for establishing common mechanisms for managing refugees, promoting regional cooperation in handling refugee matters.
3. Southern African Development Community (SADC): Tanzania's membership in SADC involves commitments to regional stability and development, indirectly affecting refugee affairs by addressing root causes of displacement and promoting peace and security in the region.