and UNFPA as well as DPA, OHCHR and UNDP within the framework of national programmes, which may include, as appropriate, processes linked to birth registration and updating of population data; (c) Encourages UNHCR to undertake and share research, particularly in the regions where little research is done on statelessness, with relevant academic institutions or experts, and governments, so as to promote increased understanding of the nature and scope of the problem of statelessness, to identify stateless populations and to understand reasons which led to statelessness, all of which would serve as a basis for crafting strategies to addressing the problem; (d) Encourages those States which are in possession of statistics on stateless persons or individuals with undetermined nationality to share those statistics with UNHCR and calls on UNHCR to establish a more formal, systematic methodology for information gathering, updating, and sharing; (e) Encourages UNHCR to include in its biennial reports on activities related to stateless persons to the Executive Committee, statistics provided by States and research undertaken by academic institutions and experts, civil society and its own staff in the field on the magnitude of statelessness; (f) Encourages UNHCR to continue to provide technical advice and operational support to States, and to promote an understanding of the problem of statelessness, also serving to facilitate the dialogue between interested States at the global and regional levels; (g) Takes note of the cooperation established with the Inter-Parliamentary Union (IPU) in the field of nationality and statelessness, and notes further the 2005 Nationality and Statelessness Handbook for Parliamentarians which is being used in national and regional parliaments to raise awareness and build capacity among State administrations and civil society; … Protection of Stateless Persons (s) Encourages States to give consideration to acceding to the 1954 Convention relating to the Status of Stateless Persons and, in regard to States Parties, to consider lifting reservations; (t) Requests UNHCR to actively disseminate information and, where appropriate, train government counterparts on appropriate mechanisms for identifying, recording, and granting a status to stateless persons; (u) Encourages States which are not yet Parties to the 1954 Convention relating to the Status of Stateless Persons to treat stateless persons 92