As part of its workplan for 2024, the Consultative Group of Experts focused its annual regional hands-on training workshops on preparing biennial transparency reports. A key objective was to enhance the technical capacity of experts from developing country Parties in relation to preparing the first biennial transparency reports with a view to facilitating their submission by the deadline of 31 December 2024. Preparatory regional webinars were held in advance to provide introductory technical information and set the stage for the in-person workshops. This report provides details on the training, a summary of the webinars and workshops, and feedback from participants.