5 CETS 200 – Avoidance of statelessness in relation to State succession, 19.V.2006 _______________________________________________________________________________________________ Article 11 – Information to persons concerned States concerned shall take all necessary steps to ensure that persons concerned have sufficient information about rules and procedures with regard to the acquisition of their nationality. Article 12 – Procedural guarantees When applying this Convention, the State concerned shall ensure that in the framework of the procedures relating to nationality: a the relevant applications be processed within a reasonable time; b the relevant decisions contain reasons in writing and be open to an administrative or judicial review in conformity with its internal law; c the fees be reasonable and not an obstacle for applicants. Article 13 – Settlement by international agreement States concerned shall endeavour to regulate matters relating to nationality, especially with a view to avoiding statelessness, where appropriate by international agreement. Article 14 – International co‐operation 1 In order to adopt appropriate measures to avoid statelessness arising from State succession, States concerned shall co‐operate among themselves, including by providing information with regard to the operation of their relevant internal law. 2 For the same purpose as that mentioned in paragraph 1, States concerned shall also co‐operate: a with the Secretary General of the Council of Europe and the United Nations High Commissioner for Refugees (UNHCR) and, b where appropriate, with other States and international organisations. Article 15 ‐ Application of this Convention 1 This Convention applies in respect of a State succession which has occurred after its entry into force. 2 A State concerned may, however, declare by notification addressed to the Secretary General of the Council of Europe at the time of expressing its consent to be bound by this Convention, or, at any time thereafter, that it will also apply the provisions of this Convention to a State succession occurring before the entry into force of this Convention.