The Consultative Group of Experts on National Communications from Parties not included in Annex I to the Convention conducted a regional hands-on training workshop on the preparation and reporting of information on mitigation actions in national communications (NCs) and biennial update reports (BURs) for Parties not included in Annex I to the Convention from the Latin American and Caribbean region in Panama City from 24 to 27 July 2018. The aim of the workshop was to facilitate national experts’ preparation and reporting of information on mitigation actions in their countries’ NCs and BURs and to enhance their capacity to use the “Guidelines for the preparation of national communications from Parties not included in Annex I to the Convention” and the “UNFCCC biennial update reporting guidelines for Parties not included in Annex I to the Convention”. The workshop also served as a platform for exchanging views, lessons learned and experience relating to the process and preparation of NCs and BURs. This report outlines the proceedings of the workshop and summarizes the discussions.