; or (bb) goods, services, or technology not described in the matter preceding item (aa) or item (aa) but which nevertheless the President determines would be, if such goods, services, or technology were United States goods, services, or technology, prohibited for export to Iran because of their potential to materially support the development of ballistic missile systems or ballistic missile launch technologies. (II) Exception Subclause (I) shall not apply with respect to efforts by the Government of Iran with respect to ballistic missile-related goods, services, and technologies that have been approved under paragraph 4 of Annex B of United Nations Security Council Resolution 2231 (2015). (iii) Procurement Working Group defined In clause (ii)(I)(aa), the term Procurement Working Group means the Procurement Working Group of the Joint Commission established under Annex IV of the applicable provisions in Annex A of United Nations Security Council Resolution 2231 (2015). . (f) Sanctionable activities with respect to conventional weapons Paragraph (1) of section 5(b) of the Iran Sanctions Act of 1996 ( Public Law 104–172