In collaboration with International Council for Local Environmental Initiatives (ICLEI) – Local Governments for Sustainability, the ASEAN-US technical Assistance and Training Facility (ASEAN-US TATF) held a two-day workshop on 20-21 September 2012, in Yogyakarta, Indonesia, to present the Yogyakarta City Greenhouse Gases (GHG) Emission Inventory Report and to demonstrate the use of ICLEI’s internationally recognized monitoring software system the Harmonized Emissions Analysis Tool (HEAT+).