This document, prepared by the Consultative Group of Experts on National Communications from Parties not included in Annex I to the Convention, contains an analysis of a survey conducted on problems related to the sustainability of the national communications process and the maintenance of national technical teams for the preparation of the national communications of Parties not included in Annex I to the Convention, including national greenhouse gas inventories, on a continuous basis. This document also provides a compilation of the recommendations resulting from the analysis of the survey, which were aimed at identifying common challenges and at presenting options and case studies/best practices available to countries and possible means of facilitating the development and long-term sustainability of processes for the preparation of national communications