A/HRC/RES/20/5 event in the field of the reduction of statelessness, prevention of statelessness and protection of stateless persons; 15. Encourages States to consider acceding to the Convention relating to the Status of Stateless Persons and the Convention on the Reduction on Statelessness, if they have not already done so; 16. Welcomes the ongoing efforts made in the field of the reduction of statelessness and combating arbitrary deprivation of nationality by different United Nations bodies and entities and human rights treaty bodies, and notes with appreciation in this regard the guidance note of the Secretary-General entitled “The United Nations and Statelessness”, and the guidelines on statelessness issued by the United Nations High Commissioner for Refugees; 17. Urges relevant United Nations human rights mechanisms and appropriate treaty bodies and encourages the Office of the United Nations High Commissioner for Refugees to continue to collect information on the issue of human rights and arbitrary deprivation of nationality from all relevant sources, and to take account of such information, together with any recommendations thereon, in their reports and activities conducted within their respective mandates; 18. Requests the Secretary-General to prepare a report on legislative and administrative measures that may lead to the deprivation of nationality of individuals or groups of individuals, paying particular attention to situations where persons affected may be left stateless, to collect in this regard information from States, United Nations agencies and other relevant stakeholders and to present the report to the Human Rights Council before its twenty-fifth session; 19. Decides to continue consideration of this issue in 2014 in accordance with its programme of work. [Adopted without a vote.] 4 31st meeting 5 July 2012