 Brazilian–Argentine Agency for Accounting and Control of Nuclear Materials

The Brazilian–Argentine Agency for Accounting and Control of Nuclear Materials (ABACC; ; ) is a binational safeguards agency playing an active role in the verification of the peaceful use of nuclear materials that could be used, either directly or indirectly, for the manufacture of weapons of mass destruction.Nuclear cooperation between Argentina and Brazil traces back to 1986 with the signature of a protocol about immediate sharing of information and mutual assistance in case of nuclear accidents and radiological emergencies  The warm personal relationship that existed between Argentina's democratically elected president Raul Alfonsin and his Brazilian counterpart, João Figueiredo, further catalyzed the deepening of relations which is now understood to have begun under their authoritarian predecessors.