Article 19
1. Member States shall take the necessary measures to prevent the entry into, or transit through their territories of: (a) persons listed in the Annex to UNSCR 1737 (2006), and additional persons designated by the Security Council or by the Committee in accordance with paragraph 10 of UNSCR 1737 (2006) as well as IRGC individuals designated by the Security Council or by the Committee, as listed in Annex I; (b) other persons not covered by Annex I that are engaged in, directly associated with, or providing support for Iran's proliferation-sensitive nuclear activities or for the development of nuclear weapon delivery systems, including through the involvement in procurement of the prohibited items, goods, equipment, materials and technology, or persons acting on their behalf or at their direction, or persons that have assisted designated persons or entities in evading or violating the provisions of UNSCR 1737 (2006), UNSCR 1747 (2007), UNSCR 1803 (2008) and UNSCR 1929 (2010) or this Decision as well as other senior members of the IRGC, as listed in Annex II. 2. The prohibition in paragraph 1 shall not apply to the transit through the territories of Member States for the purposes of activities directly related to the items specified in subparagraphs 3(b)(i) and (ii) of UNSCR 1737 (2006) for light water reactors begun before December 2006. 3. Paragraph 1 shall not oblige a Member State to refuse its own nationals entry into its territory. 4. Paragraph 1 shall be without prejudice to cases where a Member State is bound by an obligation of international law, namely: (i) as a host country of an international intergovernmental organisation; (ii) as a host country to an international conference convened by, or under the auspices of, the United Nations; (iii) under a multilateral agreement conferring privileges and immunities; (iv) under the 1929 Treaty of Conciliation (Lateran pact) concluded by the Holy See (State of the Vatican City) and Italy. 5. Paragraph 4 shall be considered as applying also in cases where a Member State is host country of the Organisation for Security and Cooperation in Europe (OSCE). 6. The Council shall be duly informed in all cases where a Member State grants an exemption pursuant to paragraph 4 or 5. 7. Member States may grant exemptions from the measures imposed in paragraph 1 where they determine that travel is justified on the grounds of: (i) urgent humanitarian need, including religious obligations; (ii) the necessity to meet the objectives of UNSCR 1737 (2006) and UNSCR 1929 (2010), including where Article XV of the IAEA Statute is engaged; (iii) attending intergovernmental meetings, including those promoted by the Union, or hosted by a Member State holding the Chairmanship in office of the OSCE, where a political dialogue is conducted that directly promotes democracy, human rights and the rule of law in Iran. 8. A Member State wishing to grant exemptions referred to in paragraph 6 shall notify the Council thereof in writing. The exemption shall be deemed to be granted unless one or more of the Council Members raises an objection in writing within two working days of receiving notification of the proposed exemption. Should one or more of the Council members raise an objection, the Council, acting by a qualified majority, may decide to grant the proposed exemption. 9. In cases where, pursuant to paragraphs 4, 5 and 7, a Member State authorises the entry into, or transit through, its territory of persons listed in Annex I or II, the authorisation shall be limited to the purpose for which it is given and to the persons concerned thereby. 10. Member States shall notify the Committee of the entry into, or transit through, their territories of the persons set out in Annex I, if an exemption has been granted.