The objective of the Estrutura de Missão para a Extensão da Plataforma Continental(EMEPC) is the submission and defence of Portugal’s proposal to the United Nations for the determination of the outer limit of the continental shelf.The objective of the Estrutura de Missão para a Extensão da Plataforma Continental (EMEPC) is the submission and defence of Portugal’s proposal to the United Nations for the determination of the outer limit of the continental shelf.