to transfer technology to Brazil for the joint development of the nuclear submarine hull. Facilities Aramar Experimental Center The Aramar Experimental Center () located in Iperó in the State of São Paulo, was inaugurated in 1988 as the first uranium-only enrichment plant in Brazil. The facility is run by the CNEN and the Brazilian Navy. In addition to the Centrifuge Enrichment Plant, the facility also hosts an Isotopic Enrichment Laboratory and several Small Nuclear Centers (, or PCNs). The enrichment laboratories are under the National Safeguards control and national inspections are carried out by the Safeguards Division of CNEN. Cachimbo Test Site The Cachimbo test site, officially named Brigadeiro Velloso Test Site (), is located in the State of Pará and covers 45,000 km2, an area larger than the Netherlands. It is within this military area that a 320 meters-deep hole at the Cachimbo Mountain Range was a site for nuclear explosives tests. The shaft has been public knowledge since 1986 and was allegedly abandoned in September 1990, when President Fernando Collor de Mello used a small shovel to symbolically seal up the hole. Brazilian Army Technology Center (Guaratiba) The Brazilian Army Technology Center (, or CTEx) located in Guaratiba - State of Rio de Janeiro, once worked on the project development of a plutonium-producing research reactor. Known as 'The Atlantic Project', it was conducted by the Special Projects Institute – IPE (closed on October 1, 2001). Nowadays, CTEx performs scientific research and technology development in defence activities in strict respect to the Constitution of the Federative Republic of Brazil and international laws. The CTEx's nuclear research laboratories are under the national regulatory authority (Brazilian Nuclear Energy Commission - CNEN) control and safeguards inspections verifications are performed jointly by the Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials (ABACC) and the International Atomic Energy Agency (IAEA). Aerospace Technology and Science Department (São José dos Campos) The Department of Aerospace Science and Technology (, or DCTA) is a research facility located in São José dos Campos, in the State of São Paulo where nuclear research is also conducted. Resende (Engenheiro Passos) Nuclear Fuel Factory The Resende Nuclear Fuel Facility (, or FCN) is a nuclear enrichment facility located in Resende, in the State of Rio de Janeiro. The plant is managed by the Nuclear Industries of Brazil (, or INB) and by the Brazilian Navy. Legislation and conventions Brazil's 1988