Regulation 52: (1) The Commission shall issue a permit for commercial aquaculture after an environmental impact assessment has been conducted.(2) A person, institution, organisation or establishment shall not carry out aquaculture without measures to guarantee confinement of the fish to prevent escape from the establishment. (3) The Commission shall not allow exotic species to be introduced in fish farming unless the Commission has adequate knowledge of the biology and life history of the species indicating low risk of negative impact.