Agency for the Prohibition of Nuclear Weapons in Latin America and the Caribbean (OPANAL)
An inter-governmental agency created by the Treaty of Tlatelolco to benefit nuclear disarmament in Latin America and the Caribbean region. In English and Spanish.
The Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials (ABACC)
A binational agency created by the governments of Brazil and Argentina, responsible for verifying the pacific use of nuclear materials that could be used, either directly or indirectly, for the manufacture of weapons of mass destruction.