This document contains a synthesis of Parties’ submissions on the structure, outline, key elements, including the purpose and scope of the review, timing and reporting, and content of the review guidelines for greenhouse gas inventories for Parties included in Annex I to the Convention. It considers all of the submissions received in response to the invitation of the Subsidiary Body for Scientific and Technological Advice (SBSTA) at its thirty-ninth session, namely submissions from Greece and the European Commission on behalf of the European Union and its member States, Japan, New Zealand, Norway and the United States of America. The secretariat has prepared this document at the request of the SBSTA as an input to a technical workshop to be held from 8 to 10 April 2014 in Bonn, Germany.