This technical paper provides information on the current training programmes for technical experts participating in the technical expert review of the annual greenhouse gas inventories, supplementary information submitted under Article 7 of the Kyoto Protocol and biennial reports and national communications submitted by Parties included in Annex I to the Convention; and biennial update reports submitted by Parties not included in Annex I to the Convention. The paper provides an overview of those training programmes, the results of their implementation with relevant statistics, observations and lessons learned from their development and implementation and how they could be used for developing the training courses under the enhanced transparency framework of the Paris Agreement.