Discussion for the decommissioning DIQ in the main nuclear fuel cycle facilities such as reprocessing

Nakamura, Hironobu 

In accordance with the Japan-IAEA safeguards agreement, domestic operator has to declare the Design Information Questionnaire (DIQ) when the operator change the design information for the facilities of themself. In the IAEA, though they already released the procedure to make the DIQ from the construction to operation, unfortunately, they did not release the procedure from shutdown to decommission. So, the operator of all over the world is asking IAEA to release the common DIQ making guidelines as soon as possible. Therefore, IAEA hold the specialist meeting to make the DIQ guideline under decommissioning, and JAEA also attend to discuss the meeting because JAEA has several types of facilities and proposes subjects to be solve in order to revise the DIQ smoothly. In this paper, regarding the discussion for the decommissioning DIQ in the main nuclear fuel cycle facilities such as reprocessing, we present and propose about simple revise, clarification between stage of decommissioning and DIQ procedure, revision of nuclear material accountancy procedure and the termination of safeguards.