1. Member States shall take the necessary measures to exercise vigilance and prevent specialised teaching or training of DPRK nationals, within their territories or by their nationals, in disciplines which would contribute to the DPRK's proliferation-sensitive nuclear activities and the development of nuclear-weapon delivery systems, including teaching or training in advanced physics, advanced computer simulation and related computer sciences, geospatial navigation, nuclear engineering, aerospace engineering, aeronautical engineering and related disciplines, advanced materials science, advanced chemical engineering, advanced mechanical engineering, advanced electrical engineering and advanced industrial engineering.
2. Member States shall suspend scientific and technical cooperation involving persons or groups officially sponsored by or representing the DPRK except for medical exchanges unless:
(a) in the case of scientific or technical cooperation in the fields of nuclear science and
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