Resumen
Thailand is the member of the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) from December 7, 1972. Thailand, as the non-nuclear weapon state (NNWS), signed and ratified Safeguards Agreement (SG) with International Atomic Energy Agency (IAEA) on May 16, 1974. Under SG, Thailand is required to establish and maintain a state system of accounting for and control of nuclear materials. Office of Atoms for Peace (OAP), as the nuclear materials regulator, was assigned to be the responsible group to co-operate with IAEA nuclear safeguards inspectors for annual nuclear materials inspection under SG. The main nuclear material is the spent fuel of 2 MW TINT nuclear research reactor and the others are some nuclear materials in a small amount of some locations outside facility (LOF). Thailand also signed Additional Protocol (AP) in relating to SG on September 22, 2005. At present, the legislation processes are continued to approve the improved Atomic Energy for Peace Act draft to support the AP. Various activities of nuclear materials regulations are presented as well as the concerning international conventions and treaties.