CNEN

CNEN stands for Comissao Nacional de Energia Nuclear, the Brazilian federal agency responsible for regulating the peaceful use of nuclear energy, protecting people and the environment from ionizing radiation, and safeguarding nuclear materials. Established in 1956, CNEN operates under the Ministry of Science, Technology and Innovations (MCTI). Its mandate includes licensing and supervising nuclear facilities and activities, regulating the possession, transport, storage, and disposal of radioactive sources, and ensuring radiation protection and nuclear safety across the country. The agency develops and maintains technical standards and normative documents used by licensees, inspectors, and professionals in the nuclear and radiological fields.

CNEN oversees research and development in nuclear science through collaborations with national laboratories and universities, notably the Instituto de Pesquisas Energéticas e Nucleares (IPEN) and related research centers. It exercises regulatory authority over the handling of nuclear materials and radiological sources, licensing facilities and personnel, and conducting inspections and enforcement when necessary. Radiation protection, dosimetry, and environmental monitoring programs operate under CNEN’s regulatory framework, often in coordination with other agencies to manage risks associated with nuclear activities.

On the international stage, CNEN participates in nonproliferation and safety efforts in partnership with the International Atomic Energy Agency (IAEA) and other international partners. The agency aims to promote the peaceful use of nuclear energy while maintaining robust safeguards, emergency preparedness, and plans for decommissioning and radioactive waste management.