The Co-Chairs of the Ad Hoc Working Group on the Paris Agreement, with the assistance of the secretariat, organized an intersessional workshop on the modalities, procedures and guidelines for the transparency framework for action and support referred to in Article 13 of the Paris Agreement. The workshop was held in Bonn, Germany, from 16 to 18 March 2017 and was attended by 95 experts from 84 Parties and 11 regional groups. The workshop focused on themes covered in Parties’ submissions, starting with discussions on reporting and recognizing that it is closely linked with technical expert review and facilitative, multilateral consideration of progress. The workshop served as a platform for experts to engage in open, constructive and comprehensive consideration of the relevant technical issues. This report outlines the proceedings of the workshop and includes a summary of the discussions in each of the technical sessions.